| 单词 | hydrochloric acid |
| 例句 | I flipped the textbook to a page she’d flagged, the chemical diagram for hydrochloric acid. Burning Blue 2012-10-25T00:00:00Z “I know it’s been difficult,” she said, pouring him a cup of lemonade with the concentration of a scientist measuring hydrochloric acid. Bone Gap 2015-03-03T00:00:00Z Small quantities of hydrochloric acid and hydrofluoric acid are also present. Cosmos 1980-01-01T00:00:00Z Wearing a gas mask and protective goggles, he gave a dramatic demonstration of his work in the 1960s, spraying hydrochloric acid on nylon, which melted, curled and shredded into tatters. Gustav Metzger, provocative artist who developed ‘auto-destructive’ art, dies at 90 2017-03-02T05:00:00Z Using hydrochloric acid, she instigated a slow rusting that will result in the sculpture shedding flakes. Art That Finds Clarity in South Africa’s Fraught Terrain 2022-04-28T04:00:00Z She planned to be a psychoanalyst but left the sciences, she once recalled, after a near-disastrous lab accident involving hydrochloric acid. Zelda Fichandler, a Matriarch of Regional Theater, Dies at 91 2016-07-29T04:00:00Z The sphere of suspects is thus gratifyingly small when Quine turns up in an abandoned house, savagely mutilated and doused for good measure in hydrochloric acid. ‘The Silkworm,’ by Robert Galbraith a.k.a. J.K. Rowling In 1961, wearing a gas mask, Metzger performed one of the most famous acts of auto-destructive art when he threw hydrochloric acid at a sheet of nylon on London's South Bank. Gustav Metzger: 'Destroy, and you create' 2012-11-26T20:00:08Z “He used a range of tools — an electric drill fitted with a wide masonry bit, hydrochloric acid, an electric chain saw, a nail gun, several knives, a lighter,” the pathologist reports, describing the warehouse killings. ‘Irène,’ by Pierre Lemaitre, a French Crime Novel 2014-12-25T05:00:00Z Metzger himself shredded sheets of nylon on numerous occasions by painting or spraying them with hydrochloric acid. At the Serpentine, a Show of Nature’s Healing Power 2022-07-28T04:00:00Z At the Temple Galley in London in 1960, he demonstrated the concept by applying hydrochloric acid to a nylon canvas with a special paintbrush, causing it to shred. Gustav Metzger, ‘Auto-Destructive Art’ Provocateur, Dies at 90 2017-03-08T05:00:00Z There is evidence that the incidence of various forms of obsessive love is increasing Mendoza then followed her across America and planted bottles of hydrochloric acid in her car. The problem with ‘unfriending’ 2016-03-06T05:00:00Z "Most drain cleaners work by creating a chemical reaction right inside your drain pipe, often with the help of hydrochloric acid," he explains. The best way to unclog every drain in your home 2022-08-08T04:00:00Z By efficiently mixing stomach contents, what you’ve eaten is fully exposed to pepsin and hydrochloric acid. Ever wondered how your stomach works? 2016-09-09T04:00:00Z A break-in on June 10 at the Longmeadow, Massachusetts, city pool led to the theft of muriatic acid, a diluted form of hydrochloric acid used for cleaning. Juveniles indicted, accused of pouring stolen acid on slides at Massachusetts playground 2023-10-21T04:00:00Z That is why the group has chartered two low-water barges that are able to supply customers with hydrochloric acid even when Rhine levels at Cologne fall to 0.40 metres. German industry changes tack as river Rhine runs drier 2023-07-26T04:00:00Z An unknown suspect had broken into the city pool and stolen muriatic acid, a diluted form of hydrochloric acid used to maintain the pH balance in pools as well as for surface cleaning. Children in Massachusetts suffer chemical burns from slides doused in acid from nearby pool 2023-06-13T04:00:00Z Satellite data after the fires revealed that the levels of hydrochloric acid were especially low compared to other years in regions of the atmosphere away from the South Pole at warmer latitudes. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z Before anything enters a bird's gizzard, an organ for grinding up food, the proventriculus secretes digestive enzymes and hydrochloric acid to break down meals. Birds are eating too much of our plastic 2023-03-08T05:00:00Z If hydrogen chloride leaches into the groundwater, or mixes with water vapor in the atmosphere, it can form hydrochloric acid, a component of acid rain. Officials burned off toxic chemicals from Ohio train. Was it the right move? 2023-02-17T05:00:00Z This creates hydrochloric acid, which is highly corrosive. Why the train wreck in Ohio is such a major public health disaster 2023-02-15T05:00:00Z "We were called to a leak of hydrochloric acid at 20:39 on Wednesday evening. Two hundred people were evacuated from the factory before we arrived," an LFB statement said. Coca Cola Sidcup factory evacuated after chemical leak 2023-01-19T05:00:00Z Remnant chlorine is bound up as hydrochloric acid and chlorine nitrate, which are harmless to the ozone layer. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z Eric Deroche, St. James homeland security director, said a tank car was leaking hydrochloric acid that would have to be neutralized and removed. Train derailment, acid lead prompt evacuations in Louisiana 2022-11-02T04:00:00Z It is isolated as anilinium chloride, a salt prepared by the reaction of the weak base aniline and hydrochloric acid. Chemistry 2019-02-14T00:00:00Z In the stomach, pepsinogen mixes with hydrochloric acid to form pepsin, which begins digesting proteins, such as turkey, into smaller chains of amino acids. Biology for AP Courses 2022-06-09T00:00:00Z The evacuation was in response to a leak of hydrochloric acid at the canning facility on Cray Road, which the fire service said it had dispersed. Coca Cola Sidcup factory evacuated after chemical leak 2023-01-19T05:00:00Z But when hydrochloric acid dissolves in water droplets, it forms reactive ozone-depleting molecules. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z The fluid contains potentially hazardous chemicals such as hydrochloric acid, glutaraldehyde, petroleum distillate, and ethylene glycol. Environmental Biology 2018-09-06T00:00:00Z Treatment of the remaining material with hydrochloric acid removes the oxides of other metals. Chemistry 2019-02-14T00:00:00Z Pepsin is converted to pepsinogen with the help of hydrochloric acid. Biology for AP Courses 2022-06-09T00:00:00Z Small dropper bottles of dilute hydrochloric acid are often carried by geologists in the field as well as used in mineral identification labs. An Introduction to Geology 2017-01-01T00:00:00Z The team used a computer model to predict how various organic acids contained in smoke particles would alter the solubility of hydrochloric acid. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z For example, hydrochloric acid and lemon juice are very acidic and readily give up H+ when added to water. Environmental Biology 2018-09-06T00:00:00Z Yes, tin reacts with hydrochloric acid to produce hydrogen gas. Chemistry 2019-02-14T00:00:00Z Another cell type—parietal cells—secretes hydrogen and chloride ions, which combine in the lumen to form hydrochloric acid, the primary acidic component of the stomach juices. Biology for AP Courses 2022-06-09T00:00:00Z Solid calcite reacts with hydrochloric acid by effervescing or fizzing. An Introduction to Geology 2017-01-01T00:00:00Z Solomon says that hydrochloric acid latches onto the surface of the smoke particles and reacts with other molecules to produce molecular chlorine, which is broken down in sunlight to highly reactive ‘ozone-eating’ chlorine ions. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z Other causes of metabolic alkalosis include the loss of hydrochloric acid from the stomach through vomiting, potassium depletion due to the use of diuretics for hypertension, and the excessive use of laxatives. Anatomy and Physiology 2013-06-19T00:00:00Z Silica gel, a colloidal dispersion of hydrated silicon dioxide, is formed when dilute hydrochloric acid is added to a dilute solution of sodium silicate. Chemistry 2019-02-14T00:00:00Z Simultaneously, the stomach begins to produce hydrochloric acid to digest the food. Biology for AP Courses 2022-06-09T00:00:00Z Recall that hydrochloric acid reacts by effervescing with limestone rock made of calcite, which is calcium carbonate. An Introduction to Geology 2017-01-01T00:00:00Z Jim Haywood, an atmospheric scientist at the University of Exeter, UK, says that hydrochloric acid solubility in the wake of fires hasn’t been investigated previously. Australia's Massive Wildfires Shredded the Ozone Layer—Now Scientists Know Why 2023-03-10T05:00:00Z For example, gastrin is secreted in response to stomach distention and causes the release of hydrochloric acid in the stomach. Anatomy and Physiology 2013-06-19T00:00:00Z The addition of hydrochloric acid to magnesium hydroxide, followed by evaporation of the resultant aqueous solution, leaves pure magnesium chloride. Chemistry 2019-02-14T00:00:00Z However, when the stomach is emptied, the acidic environment need not be maintained and a hormone called somatostatin stops the release of hydrochloric acid. Biology for AP Courses 2022-06-09T00:00:00Z Another way to distinguish marble from a quartzite is with a drop of dilute hydrochloric acid. An Introduction to Geology 2017-01-01T00:00:00Z During the process, the rock face is polished, dipped into a mild hydrochloric acid solution, and then rinsed with water and acetone to produce a very thin sheet. Plant fossils found in San Juan Islands like ‘finding a penguin in North America’ 2022-02-18T05:00:00Z But existing recycling methods are inefficient and expensive, and require corrosive chemicals such as concentrated hydrochloric acid. An electric jolt salvages valuable metals from waste 2022-02-08T05:00:00Z FeCl2 is added to a solution containing an excess of in hydrochloric acid. Chemistry 2019-02-14T00:00:00Z Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Biology for AP Courses 2022-06-09T00:00:00Z Of course, most of them are very toxic — but there’s lye, cyanide, hydrochloric acid, sulfuric acid. How drug overdose deaths surpassed 100,000 in a year for the first time during COVID-19 2021-11-18T05:00:00Z The hydrochloric acid and tiny particles of volcanic glass released into the air can cause skin, eye and respiratory tract irritation. Lava flowing into sea creates delta, expands Spanish island 2021-09-30T04:00:00Z Tour’s team gets by with concentrations of hydrochloric acid 120 times lower than current extraction methods, and still manages to extract twice as much. An electric jolt salvages valuable metals from waste 2022-02-08T05:00:00Z Gastric juice, the digestive fluid produced in the stomach, contains hydrochloric acid, HCl. Chemistry 2019-02-14T00:00:00Z Scientists say that the thermal shock results in the release of water vapor plumes loaded with hydrochloric acid and tiny particles of volcanic glass that can cause skin, eye and respiratory tract irritation. Scientists: Spanish volcano has entered ‘low activity’ phase 2021-09-27T04:00:00Z In this method, hydrochloric acid is used to break down soybeans, after which the mixture may be doctored with other colors, flavors and chemicals. A guide to soy sauce: How to find the right bottle for you and your recipe 2021-07-12T04:00:00Z Tysver said several cars involved in the derailment were carrying hydrochloric acid, potassium hydroxide and asphalt. Evacuation order still in place after fiery Iowa derailment 2021-05-17T04:00:00Z One day he demonstrated the chemical reaction that resulted when you combined hydrochloric acid and copper oxide. A Master Storyteller’s Advice for Graduates: ‘Be Brave. Be Kind.’ 2020-06-11T04:00:00Z Novocaine, C13H21O2N2Cl, is the salt of the base procaine and hydrochloric acid. Chemistry 2019-02-14T00:00:00Z At the Kennecott copper mine, a broken tank leaked thousands of gallons of hydrochloric acid. Earthquake rattles millions on edge amid coronavirus threat 2020-03-19T04:00:00Z When he awoke, they forced him to drink a mixture of crushed pills, beer and hydrochloric acid, authorities said. South Dakota upholds death sentence in 2000 torture killing 2019-12-14T05:00:00Z The facility will recycle wastewater and produce hydrochloric acid and caustic soda to use in the rare earths separation process, saving the facility the added cost of buying the chemicals on the open market. California rare earths miner races to refine amid U.S.-China trade row 2019-08-23T04:00:00Z But the researchers, including the study's lead author, Liang Hu, added the iron and nickel, as well tin alloy immersed in hydrochloric acid, to the solution, which lowered the surface tension. Shocking 'Terminator-like' liquid metal developed by scientists 2019-03-21T04:00:00Z The reaction of zinc with hydrochloric acid, shown in Figure 18.7, is: Chemistry 2019-02-14T00:00:00Z In Sept 2017, two American college students were injured in a hydrochloric acid attack by a woman at a train station Marseille, southern France. Person in Paris metro burned after serious “liquid” attack 2019-02-15T05:00:00Z On 10 January 2017 the aspiring model and singer was doused in hydrochloric acid and badly scarred. Fifteen years for acid attack on model 2018-11-16T05:00:00Z One of the tank cars was filled with hydrochloric acid, which is corrosive and is used for making batteries, fireworks and other products. Wet weather causes freight train carrying acid to derail 2018-08-04T04:00:00Z One of the cars was filled with hydrochloric acid, which is corrosive and is used for making batteries and fireworks. Wet weather causes freight train carrying acid to derail 2018-08-04T04:00:00Z It dissolves in hydrochloric acid, forming a solution of colorless Zn2+ ions, Cl– ions, and hydrogen gas. Chemistry 2019-02-14T00:00:00Z Backyard recyclers in places like India and Indonesia recover gold by bathing circuit boards in nitric and hydrochloric acid, thus poisoning waterways and communities. E-Waste Offers an Economic Opportunity as Well as Toxicity 2018-07-05T04:00:00Z Chlorine and hydrochloric acid were improperly mixed and formed a cloud of chlorine gas Thursday at the Shadow Brook Swim Club, fire officials said. 35 people treated after exposure to chlorine gas cloud at San Jose swim club 2018-06-14T04:00:00Z The most active fissure now, called “Fissure 8,” continued to pour into the ocean at Kapoho Bay, producing a hydrochloric acid mist called “laze,” formed when lava enters seawater. Hawaii volcano summit erupts with fresh ashfall 2018-06-13T04:00:00Z All that fury breaks down magnesium chloride salts, generating the lion's share of the hydrochloric acid gas found in the plume. The Lowdown on LAZE: Kilauea's Most Recent Hazard 2018-05-26T04:00:00Z The solid magnesium hydroxide is added to a hydrochloric acid solution, producing dissolved magnesium chloride and liquid water. Chemistry 2019-02-14T00:00:00Z In the case of laze and vog, store-bought respirators filter particles but not hydrochloric acid or sulfur dioxide. 'Lava haze' and 'vog': toxic volcanic gases prompt health fears in Hawaii 2018-05-22T04:00:00Z The laze’s second aerial threat comes in the form of a mist made of hydrochloric acid. Kilauea's Lava Is Now Spilling into the Ocean. Here's Why That's Dangerous 2018-05-22T04:00:00Z "It creates a mixture of condensed acidic steam, hydrochloric acid gas and tiny shards of volcanic glass." As lava pours into the ocean from Hawaii's Kilauea, a new risk surfaces: laze 2018-05-22T04:00:00Z Tiny pieces are picked up by the steam cloud, which contains hydrochloric acid that also is created by the interaction of lava and the ocean. Hawaii volcano generates toxic gas plume called laze 2018-05-21T04:00:00Z Treatment with hydrochloric acid removes the magnesium oxide. Chemistry 2019-02-14T00:00:00Z Scientists said the steam clouds at the spots where lava entered the ocean were laced with hydrochloric acid and fine glass particles that can irritate the skin and eyes and cause breathing problems. Hawaii volcano fills sky with acid plumes and glass shards as lava hits sea 2018-05-21T04:00:00Z Some of this airborne table salt reacts chemically with hydrogen in the water vapor, creating the hydrochloric acid. Kilauea's Lava Is Now Spilling into the Ocean. Here's Why That's Dangerous 2018-05-22T04:00:00Z Scientists said the steam clouds at the spots where lava entered the ocean were laced with hydrochloric acid and fine glass particles that can irrigate the skin and eyes and cause breathing problems. Lava from Kilauea volcano enters ocean, creates toxic cloud 2018-05-20T04:00:00Z Babb says protective masks that officials have been distributing to protect people from volcanic ash will filter particles from lava haze but not the hydrochloric acid. Hawaii volcano generates toxic gas plume called laze 2018-05-21T04:00:00Z Nitric acid oxidizes many compounds; for example, concentrated nitric acid readily oxidizes hydrochloric acid to chlorine and chlorine dioxide. Chemistry 2019-02-14T00:00:00Z The day before Mr Pajich was killed, they bought a total of 100 litres of hydrochloric acid from separate stores in Perth. Women 'who killed for pleasure' jailed in Australia 2018-02-28T05:00:00Z In the weeks before, they bought various supplies, including a circular saw and 100 litres of hydrochloric acid. 'Bucket list' killer jailed for 28 years 2018-02-28T05:00:00Z It’s gorgeous—but the lake is full of hydrochloric acid, and the roiling blue is fueled by choking sulfurous fumes. Welcome to the World's Most Awesomely Awful Places 2017-12-04T05:00:00Z They are the result of the breakdown of various chemical compounds, such as chlorine nitrate and hydrochloric acid, from industrial pollution. Could a Rogue Nation Alter Clouds to Combat Warming? 2017-11-24T05:00:00Z Chlorous acid is not stable; it slowly decomposes in solution to yield chlorine dioxide, hydrochloric acid, and water. Chemistry 2019-02-14T00:00:00Z A "suspicious object" which caused a 14-hour closure of part of the M1 was "possibly hydrochloric acid". M1 closure object 'possibly acid' 2017-09-20T04:00:00Z Humberside Fire and Rescue Service said the tank at King George Dock, near to the River Hull, contained 580 tonnes of hydrochloric acid. 'Major' acid leak tackled at Hull dock 2017-09-19T04:00:00Z The four Americans, all in their early 20s, were in front of the Saint-Charles train station when a woman threw hydrochloric acid on them shortly before 11 a.m. 4 U.S. Women Hit by Acid Attack in France 2017-09-17T04:00:00Z On 10 January the former finalist was doused in hydrochloric acid by a man she identified as Mr Tavares. Italy acid attack model Gessica Notaro returns to work - BBC News 2017-06-24T04:00:00Z Part of the chlorine in your body is present as hydrochloric acid, which is a component of stomach acid. Chemistry 2019-02-14T00:00:00Z Nearly every facet of digestion was exaggerated, he found, from the way the python fills its stomach with hydrochloric acid to the way its organs thicken and expand. When the Lab Rat Is a Snake 2017-05-17T04:00:00Z “That big white steam plume looks rather harmless, but it’s a superheated steam laced with hydrochloric acid,” Ms. Babb said, and a delta collapse magnifies the danger. No End in Sight for a Hawaii Volcano’s Ocean Lava Show 2017-02-02T05:00:00Z Webre says emergency workers were using foam to control fumes from the spilled hydrochloric acid and another agent to neutralize it. Workers clearing acid spill in Ascension Parish 2017-01-19T05:00:00Z Among the top chemicals released into the environment in New Hampshire in 2014 were sulfuric and hydrochloric acids, and zinc and barium compounds, the EPA said. Data show huge drop in chemical releases in New Hampshire 2017-01-15T05:00:00Z In addition to the potential for collapse, such areas are dangerous because they can create a corrosive plume of hydrochloric acid and volcanic particles. Park Service to open new Hawaii lava viewing area 2017-01-03T05:00:00Z Deputy Fire Chief Aaron Collette identified the material as hydrochloric acid. YMCA evacuated in cold due to chemical spill 2016-12-16T05:00:00Z The red paper wasp, for instance, rates a 3 with pain that’s “caustic and burning, with a distinctly bitter aftertaste. Like spilling a beaker of hydrochloric acid on a paper cut.” This Is the Worst Insect Sting in the World If inhaled, chlorine gas turns to hydrochloric acid in the lungs and can kill by burning the lungs and drowning victims in the resulting body fluids. Exclusive: U.N. inquiry blames Syrian military for chlorine bomb attacks - source 2016-09-16T04:00:00Z As victims inhale, it reacts with the lungs, turning into hydrochloric acid. Assad's Regime Is Still Using Chemical Weapons in Syria 2016-09-14T04:00:00Z He says an employee entered the basement of a building in the lion enclosure and noticed a 5-gallon drum of hydrochloric acid used to treat ponds was leaking. Lions, humans OK after acid leaks in Hogle Zoo exhibit 2016-08-14T04:00:00Z Firefighters said hydrochloric acid and sodium hypochlorite were mixed together, making chlorine gas. Chemical fumes scare shuts Wimbledon Leisure Centre - BBC News 2016-04-30T04:00:00Z With the new data, they re-submitted to Nature, incorporating a revised protocol, in which the mild stressor ATP was replaced with the harsher hydrochloric acid. The Stem-Cell Scandal 2016-02-29T05:00:00Z The agency led the Obama administration’s mission, along with international groups, to remove and destroy Syria’s stocks of ricin, sarin, mustard gas, hydrochloric acid and other components in 2014. Obama administration blocks Washington Times FOIA request on Syria chemical weapons 2015-12-20T05:00:00Z Containers and plating baths filled with toxic chemicals, including arsenic, lead, mercury and hydrochloric acid, were found inside of the 6,000-square-foot building. US agency cleaning up contaminated site in Grand Rapids 2015-11-24T05:00:00Z He had concealed a bottle of hydrochloric acid in his coat lining, which he took after his arrest. A dozen notorious crimes - and the evidence that helped solve them - BBC News 2015-10-14T04:00:00Z She was once a lap dog for her predecessor, who was severely injured after her spray tan machine was filled with hydrochloric acid. 'Scream Queens' recap: Sorority Hell Week leads to high body count in series premiere 2015-09-23T04:00:00Z The desperate motions provoke more action potentials, stimulating the plant to flood its trap with hydrochloric acid, pepsin- and trypsin-class enzymes, and chitinase to pierce through the insect’s exoskeleton and liquefy its meat. Plants That Are Predators 2015-09-14T04:00:00Z Protein is removed with sodium hydroxide solution and the decomposition of calcium carbonate uses hydrochloric acid — both are corrosive and hazardous solvents. Sustainability: Don't waste seafood waste 2015-08-09T04:00:00Z The Grand Rapids Press reports about 800 gallons of hydrochloric acid was accidentally mixed with about 300 gallons of chlorine in a tank. Authorities: No injuries after water plant chemicals mixed 2015-08-05T04:00:00Z Chlorine, testified Annie Sparrow, a pediatrician, “turns into hydrochloric acid as it is inhaled, drowning kids in the dissolution of their own lungs. I have never seen children die in a more obscene manner.” ‘Barbarism’ with chlorine gas goes unchecked in Syria 2015-06-20T04:00:00Z Through his website, Mr Edwards, who says he is not attending the conference, sold the researcher the one bottle of liquid labelled as 22.4% sodium chlorite and a second labelled as 4% hydrochloric acid. 'Miracle autism cure' seller exposed by BBC investigation - BBC News 2015-06-11T04:00:00Z The gas reacts quickly with water in the airways to form hydrochloric acid, swelling and blocking lung tissue, and causing suffocation. How deadly was the poison gas of WW1? 2015-01-29T05:00:00Z Both the hydrochloric acid and the sodium bicarbonate are export products, and Skyonic expects to ship thousands of tons abroad. Texas Plant to Capture, and Then Reuse, Carbon 2014-10-16T04:00:00Z No one was hurt, though the crash unleashed a chemical, toxic mess as tank cars filled with hydrochloric acid and caustic soda exploded and burned for hours. Risky Trains Derailments Come as Regulators Push for New Rules 2014-10-08T04:00:00Z Investigators also found what appeared to be bleach, hydrochloric acid, blood and possible body fluids inside the vehicle. US father faces five murder charges 2014-09-10T04:00:00Z A stockpile of "B precursors" and 44 tonnes of hydrochloric acid were disposed of at Ellesmere Port. Syrian weapon chemicals 'destroyed' 2014-08-06T04:00:00Z Other chemicals on site include vegetable oil, hydrochloric acid and bio-diesel fuel. New Mexico biofuel plant catches fire 2014-05-27T04:00:00Z They include vegetable oil, hydrochloric acid and bio-diesel fuel, he said. New Mexico biofuel plant fire prompts evacuations 2014-05-27T04:00:00Z Those included vegetable oil, hydrochloric acid and bio-diesel fuel, Williams said. Biofuel facility on fire in southern New Mexico 2014-05-27T04:00:00Z I often muse that these factories may manage toxic chemicals like arsenic and hydrochloric acid, but that they are significantly cleaner than any food production plant. The Biggest Problem Facing Semiconductors 2014-05-01T03:37:00Z PPIs help control symptoms and reduce the erosive damage to the esophagus by suppressing the cells of the stomach that produce hydrochloric acid. Steps you can take to combat acid reflux and heartburn 2013-12-31T21:48:25Z Codeine, gasoline, paint thinner, hydrochloric acid, iodine and red phosphorous from matchstick heads. Why Are Millions Addicted To A Drug That Eats The Flesh Off Their Bones? 2013-12-10T19:28:00Z In contrast, no pseudoephedrine could be extracted with either solvent or even a solution of hydrochloric acid. Acura Pharmaceuticals Publishes Bioequivalence Data On Meth-Deterring Pseudoephedrine, Nexafed 2013-09-29T13:37:00Z Oil companies in the state use hydrofluoric or hydrochloric acid to clean out well bores and to fracture solid rock. California senators want more information on oil well 'acid jobs' 2013-06-19T03:36:34Z For example, a liter of hydrochloric acid costs between 16 to 25 rupees in India. India Ink: Death of Victim Focuses Attention on Acid Attacks 2013-06-05T07:56:34Z Cuadrilla wants to try again with modern methods including horizontal drilling and the use of hydrochloric acid to stimulate the well. British Village Protests Plan for Shale Gas Drilling 2013-05-24T21:46:03Z The tank contained hydrogen chloride, which reacts with moisture in the atmosphere to form hydrochloric acid when released, the fire department said. Part of Texas city evacuated due to leak at Bayer chemical plant 2013-05-09T21:41:49Z Keep the nanowires in line by etching them clean with hydrochloric acid and confining their diameter to 180 nanometers. Novel Solar Photovoltaic Cells Achieve Record Efficiency Using Nanoscale Structures 2013-01-17T21:15:02.357Z The agency said the regulation would cut emissions of mercury by 93 percent, hydrochloric acid by 96 percent and particulate matter by 91 percent. E.P.A. Issues Standards on Boiler Air Pollution 2012-12-21T19:28:56Z Residents were warned to stay indoors after a leak of hydrochloric acid gas at about 18:15 GMT at Trafford Park. Investigation after acid gas leak 2012-11-17T14:31:53Z Police said the chemical is believed to be hydrochloric acid. Residents warned after acid leak 2012-11-16T21:31:29Z The standards are intended to cut mercury air pollution by 79 percent, compared with 2010 levels, sulfur dioxide by 63 percent and hydrochloric acid by 95 percent. Big drop in air pollution reported for Md. power plants 2012-08-10T04:34:23Z The $125 million project, to be built in San Antonio with the aid of federal grants totalling $28 million, is intended to turn a profit through sales of sodium bicarbonate, hydrochloric acid and caustic soda. Green Blog: Seeking a Profitable Place to Put Captured Carbon 2012-06-25T22:46:32Z Others of his papers deal with gas-analysis, fire-damp, illuminating gas, the composition of hydrochloric acid and of ammonia, urinary and other morbid concretions, and the disinfecting powers of heat. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z Further off, there are plans to regulate the sale of nitric and hydrochloric acids. Hope in Pakistan for Curbing Acid Attacks 2012-04-09T19:39:40Z One of these flasks contains ammonia, the other hydrochloric acid. Lord Kelvin An account of his scientific life and work 2012-04-06T02:00:32.097Z If the bleaching does not commence readily in the chlorine solution the action may be hastened by previously dipping them in dilute hydrochloric acid. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z When the purgative effect has ceased, he gives cold drinks acidulated with lemons, limes, or hydrochloric acid, and every two hours a gargle composed of lime-water and milk. Health, Happiness, and Longevity Health without medicine: happiness without money: the result, longevity 2012-03-22T02:00:38.537Z This is the dialyzing vessel, and it is into this that the mixture of silicate and hydrochloric acid must be put. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z On the addition of hydrochloric acid to logwood ink it will turn to a bright red. The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal 2012-02-11T03:04:05.257Z A better effect can be produced by substituting dry gaseous hydrochloric acid for air at ordinary pressures. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z Afterward they are washed in water to which hydrochloric acid has been added, to get rid of the slight deposit of lime. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z Every piece of iron before being riveted in its place is cleaned from rust by being immersed in a solution of hydrochloric acid. Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:31.783Z The chlorine of the common salt unites with the hydrogen of the steam, and the oxygen of the steam with the sodium, so that hydrochloric acid and oxide of sodium are formed. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z There it is, "to determine the nature of the ink, use hydrochloric acid." The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal 2012-02-11T03:04:05.257Z The oil may be oxidized by treating it on the waterbath with hot hydrochloric acid, with some chlorate of potash, added in small quantities at a time. Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z The jacket may be washed several times with a twenty per cent. solution of hydrochloric acid. Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines 2011-12-28T03:00:31.087Z Fox marks may be removed by immersing the leaves in a weak solution of chlorine water and then transferring to a hot bath of very weak hydrochloric acid. Library Bookbinding 2011-12-24T03:07:58.950Z The mucilage must be acidulated with hydrochloric acid before dialysing, to set free the gummic acid. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z Companies on the website say the fluid is mostly water mixed with sand and small percentages of petroleum chemicals and alcohols such as Isopropanol, which is used in rubbing alcohol, while some contain hydrochloric acid. Colo. will require energy companies to publicly disclose concentrations of fracking chemicals 2011-12-13T18:40:42Z Here is a statement of the results: one volume of hydrogen combines with one volume of chlorine to form two volumes of hydrochloric acid. Heroes of Science Chemists 2011-12-09T03:00:21.047Z If the deposits or incrustations are very tenacious, the use of a dilute solution of hydrochloric acid may be resorted to. Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines 2011-12-28T03:00:31.087Z This well-known condiment is caused by the interaction of hydrochloric acid and the metal sodium and will serve to illustrate what all salts are. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z The alumina or silica at high temperatures decomposes the salt, setting free hydrochloric acid and probably also free chlorine. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z It has now been extended to include synthetic ethers, such as those obtained by acting on alcoholic glucose solutions with hydrochloric acid, and also the polysaccharoses, e.g. cane sugar, which appear to be ethers also. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Many organic compounds, when treated with chlorine lose a certain number of equivalents of hydrogen, which passes off as hydrochloric acid. Heroes of Science Chemists 2011-12-09T03:00:21.047Z It can also be obtained by passing sulphuretted hydrogen through a solution of the dioxide in hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 7 "Geoponici" to "Germany" 2011-09-26T02:00:25.313Z Thus hydrochloric acid, given the opportunity, gets rid of its hydrogen and takes in sodium, thereby forming chloride of soda or common salt. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z The first recipe would no doubt produce hydrochloric acid. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z An india-rubber substitute is obtained by adding sodium tungstate and hydrochloric acid to a strong glue solution; this preparation may be rolled out when heated to 60�. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Gerhardt sought to refer all organic compounds to one or other of three types—the water type, the hydrochloric acid type, and the ammonia type. Heroes of Science Chemists 2011-12-09T03:00:21.047Z For a last experiment let the student neutralize a weighed amount of dilute hydrochloric acid with aqua ammonia, noting approximately the amount of ammonia required. Scientific Culture, and Other Essays Second Edition; with Additions 2011-09-17T02:00:31.747Z The hydrochloric acid that was formerly discharged into the air as a waste product afterwards became a valuable asset that enabled the Leblanc process to successfully compete with the newer ammonia-soda process. Chlorination of Water 2011-09-13T02:00:32.243Z Instead of hydrochloric acid some French makers use phosphoric acid. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The reagents in common use are acetic acid; magnesium chloride, used for a glue employed by printers; hydrochloric acid and zinc sulphate; nitric acid and lead sulphate; and phosphoric acid and ammonium carbonate. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z It's greener than cremation, which—though more environmentally friendly than burial—still releases chemicals like nitrogen oxides, sulfur dioxide and both hydrofluoric and hydrochloric acid into the atmosphere. The Newest Green Funeral Option: Liquefaction 2011-08-31T10:00:51Z Write the reaction of hydrochloric acid on sodic carbonate, and state what information the equation gives in regard to the process which it represents. Scientific Culture, and Other Essays Second Edition; with Additions 2011-09-17T02:00:31.747Z The hydrochloric acid then drives off the weaker carbonic acid and unites with the calcium forming chloride of calcium. Chlorination of Water 2011-09-13T02:00:32.243Z After being well washed with water to remove all traces of hydrochloric acid, the bones are bleached by leading in sulphur dioxide. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z In the Glatz process the lye is treated with a little milk of lime, the liquid then neutralized with hydrochloric acid, and the liquid filtered. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Gases soluble in water, such as ammonia, hydrochloric acid, sulphuretted hydrogen, sulphur dioxide, &c., are estimated by passing a known volume of the gas through water and titrating the solution with a standard solution. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z Phosphorus is determined in the ash by fusing it with a mixture of sodium and potassium carbonates, extracting the residue with hydrochloric acid, and twice evaporating to dryness with the same acid. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z The hypochlorous acid in the presence of oxidisable matter gives off its oxygen; hydrochloric acid being left. Chlorination of Water 2011-09-13T02:00:32.243Z The Laminaria is first extracted with water, and the residue with sodium carbonate; the filtrate is acidified with hydrochloric acid and the precipitated alginic acid washed and bleached. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z But to produce , whose medical name is desomorphine, addicts mix it with ingredients including gasoline, paint thinner, hydrochloric acid, iodine and red phosphorous, which they scrape from the striking pads on matchboxes. The Curse of the Crocodile: Russia's Deadly Designer Drug 2011-06-20T23:15:00Z The precipitate is dissolved in hydrochloric acid and foreign metals are removed by sulphuretted hydrogen; the residual liquid being then fractionally precipitated by sodium carbonate, which throws out the gallium before the zinc. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z It reacts violently with hydrochloric acid, producing a brown amorphous substance. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Hydrolysis of hydrocyanic acid by means of hydrochloric acid yields formic acid. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 "Foraminifera" to "Fox, Edward" 2011-04-22T02:00:08.637Z Ethyl chloride, C2H5Cl, formed by the action of hydrochloric acid on alcohol, is much used for the production of low temperature—as a local an�sthetic. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z It effervesces only slightly in cold hydrochloric acid. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z Carbon monoxide is absorbed by a solution of cuprous chloride in hydrochloric acid or, better, in ammonia. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z The residue is dissolved in hydrochloric acid, a few drops of ferric chloride added, and then ammonia in excess. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Gold is also refined by a similar process, the electrolyte used consisting of gold chloride solution containing free hydrochloric acid. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z The lines are then bitten by putting the plate into dilute nitric or hydrochloric acid, the back and edges being protected by stopping-out varnish. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z The true silks are distinguished from the wild silks by the action of concentrated hydrochloric acid in the cold, which reagent dissolves the former, but has only a slight effect on Tussore silk. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" 2011-03-14T03:01:00.580Z When she turned around, she saw Ms. Smsarian putting down a bottle labeled hydrochloric acid. City Room: Student Douses Classmate With Acid in Chemistry Class 2011-03-10T21:49:39Z For example, the use of a certain excess of hydrochloric acid would not hasten coagulation, but would prevent it. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z For copper, nitric acid is used; for silver, sulphuric, and for gold hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Similar phenomena are seen in the case of a solution of hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z To him is attributed the discovery of hydrochloric acid, which he called the spirit of salt, sugar of lead, and a method of preparing sulphuric acid and probably ammonia. The Century of Columbus 2011-01-29T03:00:17.380Z Living clams in aquaria, with enough moist sand to cover the clams, preserved clams, sets of matched clamshells, a few shells with the hinge unbroken, evaporating dishes, hydrochloric acid. A Guide for the Study of Animals 2011-01-18T03:00:14.913Z It would appear that probably the gas was prepared by the action of hydrochloric acid upon marble or limestone. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Or add iron to hydrochloric acid and boil the solution to dryness. Moonlighting as a Conjurer of Chemicals 2010-10-11T20:50:00Z His results are given in column I. of the following table, the affinity of hydrochloric acid being taken as one hundred. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The difference, he says, "is that ingested chromium-6 encounters hydrochloric acid in the stomach's gastric juices, and is converted to chromium-3, which is innocuous." 2003-07-14T14:15:00Z The ferrocyanide solution is standardized by dissolving 1 gramme of pure zinc in 6 cc. of hydrochloric acid, adding ammonium chloride, and titrating as before. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Unless intervening “washers” and “driers” were used, the liberated gas, when passed into latex, would carry with it traces of hydrochloric acid, which would effect coagulation. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z With a little water it forms arsenic oxychloride, AsOCl, and with excess of water it is completely decomposed into hydrochloric acid and white arsenic. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" Let us allow dilute sodium acetate to react with dilute hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z N/10 hydrochloric acid to standardize N/10 alcoholic sodium hydroxide. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. One gramme of ore is usually taken for assay and treated in a small flask or beaker with 10 cc. of hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Aniline is present in small quantity in coal-tar, and is prepared commercially from benzene by transforming it by means of nitric acid into nitro-benzene and reducing this with scrap-iron and hydrochloric acid. The New Gresham Encyclopedia. Vol. 1 Part 2 Amiel to Atrauli In the Marsh test the solution containing the arsenious compounds is mixed with pure hydrochloric acid and placed in an apparatus in which hydrogen is generated from pure zinc and pure sulphuric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" It is insoluble in water, but dissolves slowly in hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" To this cooled solution 25 cubic centimeters of absolute alcohol saturated with dry hydrochloric acid is added. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The product is treated with water, filtered, and the residue dissolved in hydrochloric acid and added to the main solution. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Hans Koeppe has shown that the hydrochloric acid of the gastric juice is produced by the osmotic exchanges between the blood and the gastric contents. The Mechanism of Life The slightly alkaline solution, freed from insoluble residues, is slowly added to a weak hydrochloric acid. History of Phosphorus The compound formed, antimoniuretted hydrogen or stibine, SbH3, may also be prepared by the action of hydrochloric acid on an alloy of antimony and zinc, or by the action of nascent hydrogen on antimony compounds. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Draw off the acid solution after allowing to separate and wash the gasoline with water until free from hydrochloric acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. This leaves the gold in the insoluble residue, which is filtered off, and the silver in the solution is thrown down by hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" When no more crystals are to be seen, you may add the hydrochloric acid. A Treatise on Etching In making wholemeal bread, hydrochloric acid and sodium bicarbonate are often used in such proportions that they neutralize each other. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" It is a nonvolatile white powder, and has a specific gravity of 6.6952; it is insoluble in water and almost so in acids—concentrated hydrochloric acid dissolving a small quantity. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Decompose the alkaline soap solution with an excess of hydrochloric acid and weigh the resin acids liberated as in the determination of total fatty acids. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. This method is modified in practice by the character of the ores, carbonates and silicates free from sulphides being decomposed by hydrochloric acid, with the addition of a little nitric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" It is a colourless fuming liquid boiling at 17-18� C, and is readily decomposed by water with formation of boric and hydrochloric acids. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" The mineral is insoluble in water, but soluble in hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2 "Bohemia" to "Borgia, Francis" It is then again washed, soured with weak sulphuric or hydrochloric acid, and ultimately washed free from acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Cool and titrate with the N/2 hydrochloric acid, using phenolphthalein as an indicator. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The copper is then dissolved in 5 cc. of nitric acid; if silver is present a drop or two of hydrochloric acid is added, the solution diluted to about 50 cc., and filtered. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" After fusion, the melt is well washed with dilute hydrochloric acid and then with water, the nitride remaining as a white powder. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" The internal temperature of this mass was very high; the hydrochloric acid which it discharged had, in some places, covered the micaceous iron with a yellow coating of chloride of iron. The Eruption of Vesuvius in 1872 It readily dissolves in nitric acid, aqua regia and hot sulphuric acid, but tardily in hot hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" First—Determine the strength of the N/10 alcoholic sodium hydroxide in terms of N/10 hydrochloric acid and calculate the factor, e. g.: Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. A small part of the chlorine is used in the production of the hydrochloric acid of the gastric juice. Dietetics for Nurses The dark product obtained is washed with water, hydrochloric acid and hydrofluoric acid, and finally calcined again with the oxide or with borax, being protected from air during the operation by a layer of charcoal. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" But if the fumarole continues active, hydrochloric acid issues with the smoke, and often some time after sulphuric acid. The Eruption of Vesuvius in 1872 Bismuth trichloride forms double compounds with hydrochloric acid, the chlorides of the alkaline metals, ammonia, nitric oxide and nitrosyl chloride. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Where it is desired to determine sodium silicate, 10 grams of soap are ashed by ignition, hydrochloric acid added to the ash in excess and evaporated to dryness. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. This hormone is the result of the action of hydrochloric acid upon some substance in the intestinal wall. Dietetics for Nurses It may also be obtained by the decomposition of boracite with hot hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" Smoke and hydrochloric acid issued from the aperture in its envelope, and being partly broken it was seen to contain lapilli and pieces of antecedent lava, covered with micaceous peroxide of iron. The Eruption of Vesuvius in 1872 Bismuth 11 disulphide is a grey metallic substance, which is decomposed by hydrochloric acid with the separation of metallic bismuth and the formation of bismuth trichloride. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" By following the above instructions carefully it is possible to bleach one ton of palm oil with 17 pounds of bichromate of soda and 85 pounds hydrochloric acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The treatment is directed toward the reduction of the free hydrochloric acid in the stomach in order that the ulcer may have an opportunity for healing. Dietetics for Nurses A hydrated chloride of composition 2CeCl3�15H2O is also known, and is obtained when a solution of cerous oxide in hydrochloric acid is evaporated over sulphuric acid. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" In a hollow fragment of scori� I observed a yellowish substance, which looked like sulphur in a viscid state, and which boiled at a temperature of 120�, and evolved hydrochloric acid. The Eruption of Vesuvius in 1872 Aniline salts generally give a yellow coloration, dimethyl-para-phenylenediamine gives a deep red coloration, phloroglucin in hydrochloric acid gives a crimson coloration. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" The method of conducting this process is identical with the chrome process to the point where the hydrochloric acid is to be added to the oil. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Its presence may be detected by adding a few drops of hydrochloric acid to some of the colored material, then dropping in a bright steel nail, knitting needle, or knife blade. Dietetics for Nurses Cold concentrated nitric and sulphuric acids are without action on the metal, but it reacts rapidly with dilute nitric and hydrochloric acids. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" The same result can, in fact, be arrived at by heating dry aniline hydrochloride, i.e. the hydrochloric acid salt of aniline, with methyl alcohol or wood-spirit in strong metallic boilers under great pressure. Coal and What We Get from It Another example is Deacon’s process for the manufacture of chlorine by passing hydrochloric acid gas mixed with air over heated bricks which had been previously impregnated with a copper sulphate solution. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" The methods generally employed are by the use of oxygen developed by bichromates and hydrochloric acid and the direct bleaching through the agency of the oxygen of the air. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Let Pt represent a plate of platinum, and Zn a plate of zinc, both placed in a vessel containing hydrochloric acid, which is also represented by the symbols HCl. The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action A variety of animal charcoal is sometimes prepared by calcining fresh blood with potassium carbonate in large cylinders, the mass being purified by boiling out with dilute hydrochloric acid and subsequent reheating. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The mode of procedure is to diazotise the amido-compound by sodium nitrite and hydrochloric acid in the manner already described, and then add the diazo-salt solution to the phenolic compound dissolved in alkali. Coal and What We Get from It By the action of hydrochloric acid the colour of tiger’s-eye may to a large extent be removed, and a greyish cat’s-eye obtained. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" Besides these other materials are used in the refining of the oils and fats, and glycerine recovery, such as Fuller's earth, bichromates of soda or potash, sulphate of alumina, sulphuric and hydrochloric acids and alcohol. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Long continued boiling with water gives mercury and mercuric chloride; dilute hydrochloric acid or solutions of alkaline chlorides convert it into mercuric chloride on long boiling. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Water decomposes it violently, with formation of carbon dioxide and hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The chlorides of these substances exhibit these flame reactions best, and hence before applying the flame tests we dip the wire which serves as a support into hydrochloric acid and then into the substance. The Elements of Blowpipe Analysis Dolomite dissolves only very slowly in dilute hydrochloric acid in the cold, but readily when the acid is warmed; limestones are freely attacked by the acid in either state. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" The mineral is decomposed by hydrochloric acid with separation of gelatinous silica. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" In the wet way it is obtained by precipitating a mercurous salt with hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Diffusion of gases may be shown to exist by taking glass jars containing vapours of hydrochloric acid and ammonia, and placing them in communication with the heavier gas downmost. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Ammonia is dissociated into nitrogen and hydrogen; hydrochloric acid into chlorine and hydrogen. A Brief Account of Radio-activity It is also obtained by burning the metal in chlorine, by heating copper and cupric oxide with hydrochloric acid, or copper and cupric chloride with hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" Warm dilute sulphuric acid was then applied, until it was no longer colored, and the residue was treated with dilute hydrochloric acid and boiling alcohol and ether. The Galaxy, June 1877 Vol. XXIII.—June, 1877.—No. 6. To remove this, apply with a brush chlorated lime and then very weak hydrochloric acid. Book Repair and Restoration The residue is washed, extracted by dilute hydrochloric acid, and again well washed with boiling water. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" It was formed artificially by exposing fragments of lava alternately to the action of hydrochloric acid and ammonia in a red-hot tube. Etna A History of the Mountain and of its Eruptions Its solution in hydrochloric acid readily absorbs carbon monoxide and acetylene; hence it finds application in gas analysis. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" It is a brown-black powder soluble in hydrochloric acid, chlorine being simultaneously liberated. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" If this is unsuccessful try successively chlorine, alkalis, oxalic acid and hydrochloric acid, soaking the page for an hour in water between each operation. Book Repair and Restoration The solution is filtered and the hydrochloride of the base precipitated by alcoholic hydrochloric acid; the free base is obtained as an oil by adding caustic soda. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" This new mineral species appears to be formed by the action of hydrochloric acid, and of ammonia on red-hot lava containing a large percentage of iron. Etna A History of the Mountain and of its Eruptions Cupric chloride, CuCl2, is obtained by burning copper in an excess of chlorine, or by heating the hydrated chloride, obtained by dissolving the metal or cupric oxide in an excess of hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" It dissolves easily in water, forming the hydrated chloride, CoCl2�6H2O, which may also be prepared by dissolving the hydroxide or carbonate in hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" The hydrochloric acid unites with the lime, and the carbonic acid goes to the ammonia. Harper's New Monthly Magazine, Vol. 2, No. 8, January, 1851 Potassium cyanide reacts with this acid to form the corresponding dinitrile, which is converted by hydrochloric acid into citric acid. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" Of other common products of Etna, there are sulphur in various forms, sulphurous acid gas, ammonia salts, hydrochloric acid gas, and steam. Etna A History of the Mountain and of its Eruptions The conversion of copper sulphide into the chlorides may be accomplished by calcining with common salt, or by treating the ores with ferrous chloride and hydrochloric acid or with ferric chloride. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" It is a black amorphous powder soluble in concentrated sulphuric and hydrochloric acids, and when in the moist state readily oxidizes on exposure. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Heated with concentrated hydrochloric acid it liberates chlorine, and with sulphuric acid it liberates oxygen. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Being an unsaturated acid it combines directly with hydrochloric acid, hydrobromic acid, bromine, &c. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" Davy also described and partially investigated the gas, named by him “euchlorine,” obtained by heating potassium chlorate with hydrochloric acid; this gas has been more recently examined by Pebal. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The presence of even a small proportion of hydrochloric acid imparts a brown tint to the deposit. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" The bottle is carefully cleansed by washing with soda, hydrochloric acid and distilled water, and then dried by heating in an air bath or by blowing in warm air. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" Hydrochloric Acid.—Chlorine combines with hydrogen to form hydrochloric acid, HCl, the only known compound of these two elements. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Take, for example, a water-like solution of nitrate of silver, and let fall into it a few drops of another water-like solution of hydrochloric acid; a white insoluble precipitate of chloride of silver is formed. A History of Science, Volume 5(of 5) Aspects Of Recent Science Hold a small portion of the substance moistened with hydrochloric acid on a clean platinum wire in the fusion zone of the Bunsen burner, and note any colour imparted to the flame. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Copper sulphate is readily soluble in water, but insoluble in alcohol; it dissolves in hydrochloric acid with a considerable fall in temperature, cupric chloride being formed. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" One dram of caustic potash or of hydrochloric acid may be given daily in the drinking water. Special Report on Diseases of Cattle The solution has a pale yellow colour, and is a strong oxidizing and bleaching agent; it is readily decomposed by hydrochloric acid, with evolution of oxygen. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" But the clew thus gained, other gases were subjected to similar conditions by Davy, and particularly by Faraday, with the result that several of them, including sulphurous, carbonic, and hydrochloric acids were liquefied. A History of Science, Volume 5(of 5) Aspects Of Recent Science Small portions Wet methods. should be successively tested with water, dilute hydrochloric acid, dilute nitric acid, strong hydrochloric acid, and a mixture of hydrochloric and nitric acids, first in the cold and then with warming. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Ores in which the copper is present as oxide or carbonate are soluble in sulphuric or hydrochloric acids, ferrous chloride, ferric sulphate, ammoniacal compounds and sodium thiosulphate. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" By adding hydrochloric acid to a dilute solution of an alkaline silicate, no precipitate will fall and the solution will contain hydrochloric acid, an alkaline chloride, and silicic acid. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" Berthollet, regarding it as being a compound of hydrochloric acid and oxygen, termed it oxygenized muriatic acid. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" When you poured the hydrochloric acid on the zinc to make hydrogen, the flask became warm; the chemical change going on in the flask released heat energy. Common Science For this purpose the cold solution is treated with hydrochloric acid, which precipitates lead, silver and mercurous salts as chlorides. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" To this curious fact, that arsenic loves copper when it is wet with warm hydrochloric acid, and hates it when it is hot and dry, is due the discovery of many a crime. The Harmsworth Magazine, v. 1, 1898-1899, No. 2 If the solution be transferred to a dialyser, the hydrochloric acid and alkaline chloride will pass through the parchment, while the silicic acid will be retained. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" The solution of chlorine in water, when freshly prepared, possesses a yellow colour, but on keeping becomes colourless, on account of its decomposition into hydrochloric acid and oxygen. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" If the bubbles do not form rapidly, ask the teacher to pour a little strong hydrochloric acid into the flask; but this will probably not be necessary. Common Science In this case, the precipitate is dissolved in as little as possible hydrochloric acid and boiled with ammonium acetate, acetic acid and ferric chloride. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" In practice the analyst puts a little of the brew in a small glass test-tube, pours in some distilled water, and carefully drops in some hydrochloric acid. The Harmsworth Magazine, v. 1, 1898-1899, No. 2 If he had heated it to a temperature of 180°F. or so, and blown the fumes of hydrochloric acid upon it, the writing would have come out plain enough. Astounding Stories of Super-Science September 1930 In the form of alkaline chlorides it is found in sea-water and various spring waters, and in the tissues of animals and plants; while, as hydrochloric acid it is found in volcanic gases. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The sulfuric and nitric acids must be measured in glass or china cups, and the hydrochloric acid must be measured in a silver-plated spoon or in glass—not in tin. Common Science The white precipitate formed by cold hydrochloric acid is boiled with water, and the solution filtered while hot. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Alkalinity of the Soluble Ash—Official Cool the filtrate from 9 and titrate with N/10 hydrochloric acid, using methyl orange as an indicator. All About Coffee Chemical industries require salt for the manufacture of many sodium compounds, and also as a source of hydrochloric acid and chlorine. The Economic Aspect of Geology The strongest aqueous solution of hydrochloric acid at 15� C. contains 42.9% of the acid, and has a specific gravity of 1.212. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Add a few drops of the dilute hydrochloric acid to the liquid in the test tube. Common Science The last two are dissolved out by cold, very dilute hydrochloric acid, and the residue is tested for nickel and cobalt. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" In the alimentary tract coffee seems to stimulate the oxyntic cells and slightly to increase the secretion of hydrochloric acid, as well as to favor intestinal peristalsis. All About Coffee Dissolve in distilled water, add slight excess of dilute hydrochloric acid and again evaporate to dryness. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Perfectly dry hydrochloric acid gas has no action on metals, but in aqueous solution it dissolves many of them with evolution of hydrogen and formation of chlorides. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Heat this to boiling, then add a few drops of hydrochloric acid diluted 1 to 10. Common Science A further generalization was effected by August Kekul�, who rejected the hydrochloric acid type as unnecessary, and introduced the methane type and condensed mixed types. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The borax extract, if subsequently treated with hydrochloric acid, should not turn red, nor become blue on the further addition of ferric chloride. Scientific American Supplement, No. 647, May 26, 1888 Wash the residue from the filter paper, dissolve by heating with dilute hydrochloric acid, and add calcium chloride solution and ammonia until alkaline. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The Fatty Acids Produced.—A solution of the potash soap was treated with excess of hydrochloric acid, and after being well washed with hot water, the cake of fatty acids was dried thoroughly and weighed. Scientific American Supplement, No. 488, May 9, 1885 Try lemon juice; diluted hydrochloric acid; a very dilute lye solution. Common Science Dissolve the residue in hydrochloric acid and test separately for antimony and tin. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" This acid watery stratum should be colorless, and should not assume any color if a little strong hydrochloric acid is allowed to fall into it through the ether. Scientific American Supplement, No. 647, May 26, 1888 Drain off the water and immerse tubes in a large jar containing water acidulated with 2 to 5 per cent. hydrochloric acid. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Phenol-phthalein solution being added, the excess of potash is estimated by carefully titrating with standard hydrochloric acid solution. Scientific American Supplement, No. 488, May 9, 1885 Now put a teaspoonful of the same hydrochloric acid into a clean evaporating dish. Common Science The carbonates are dissolved in hydrochloric acid, and calcium sulphate solution is added to a portion of the solution. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The chloride crystallizes in colourless rhombic tables of specific gravity 3.0 and is readily soluble in water, but is almost insoluble in concentrated hydrochloric acid and in absolute alcohol. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" The constitution of methyl orange follows from the fact that on reduction by stannous chloride in hydrochloric acid solution it yields sulphanilic acid and para-aminodimethyl aniline. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" As soon as they reach the stomach the free hydrochloric acid of the gastric juice unites with the potash, setting the fruit acid free to irritate the stomach. The No Breakfast Plan and the Fasting-Cure Although strong hydrochloric acid and strong caustic soda are dangerous, if they are diluted with enough water they are perfectly harmless. Common Science Thus a normal solution of sodium carbonate contains 53 grammes per litre, of sodium hydrate 40 grammes, of hydrochloric acid 36.5 grammes, and so on. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" I take a saturated solution of bichloride of mercury in hydrochloric acid, and add of this one to six parts of water. Notes and Queries, Number 207, October 15, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. The fact should also be noted that both nitric and hydrochloric acids are administered as medicine, and often assist in producing decay. Tin Foil and Its Combinations for Filling Teeth Under the action of hydrochloric acid the hypoderm is sharply differentiated from the epiderm by a distinct reddish tint, but without the aid of a reagent the two tissues do not always differ in appearance. The Genus Pinus On the shelf there were: hydrochloric acid, vinegar, lye, caustic soda, baking soda, ammonia, salt, alcohol, kerosene, salad oil. Common Science Sulphur and phosphorus can sometimes be estimated by Messinger’s method, in which the oxidation is effected by potassium permanganate and caustic alkali, or by potassium bichromate and hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" It does not yield glucose when boiled with dilute hydrochloric acid. The Medicinal Plants of the Philippines Pouring hydrochloric acid upon it, causes effervescence in the presence of carbonate of lime. Peat and its Uses as Fertilizer and Fuel Washing soda and vinegar will answer if hydrochloric acid and marble are not obtainable. Ontario Teachers' Manuals: Nature Study Muriatic Acid.—Muriatic acid or hydrochloric acid is used both raw and reduced. Elements of Plumbing Warming with ammonium sulphide dissolves out the arsenic, antimony and tin salts, which are reprecipitated by the addition of hydrochloric acid to the ammonium sulphide solution. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" In a world where chlorine predominated, we might expect to find hydrochloric acid, and all the fecund family of chlorides, playing an important part in the phenomena of life. Astronomy for Amateurs When the residue of this operation is treated with dilute hydrochloric acid, the matters soluble in acids are obtained in the fluid. Elements of Agricultural Chemistry A convenient way to prepare hydrogen is to use zinc and hydrochloric acid with a test-tube for a generator. Ontario Teachers' Manuals: Nature Study The bottom of the box should then be covered with some strong solution of ammonia, and some hydrochloric acid poured into a saucer and put into the box. Aether and Gravitation The tube was afterwards filled with half an atmosphere of the mixed air and vapour, and a second half-atmosphere of air which had been permitted to bubble through fresh commercial hydrochloric acid. Fragments of science, V. 1-2 The goods are next “scoured” in water acidulated with hydrochloric acid, and boiled in a solution of soda, then washed as before in clear water. Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades The proof is then fixed, and, if too intense, can be reduced in water slightly acidified with hydrochloric acid. Photographic Reproduction Processes Dilute sulphuric and hydrochloric acids are, perhaps, the best examples of a combination of stimulant, astringent, and tonic which can be employed. Special Report on Diseases of the Horse To this end the zinc surfaces are cleaned by means of a little hydrochloric acid, which is painted on instead of chloride of zinc. On Laboratory Arts Air, passed through a solution of hydrochloric acid, was then added, till the mercury column was depressed three inches. Fragments of science, V. 1-2 The long strips are finally scoured in hydrochloric acid, washed, and well squeezed between metal rollers covered with cloth. Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades Sedatives.—Agents which depress the vital energies, without destroying life; as aconite, digitalis, hellebore, hydrochloric acid, hyoscyamus, opium, and tartrate of antimony. Cattle and Their Diseases Embracing Their History and Breeds, Crossing and Breeding, And Feeding and Management; With the Diseases to which They are Subject, And The Remedies Best Adapted to their Cure With hydrochloric acid, so strongly recommended by some, I have never had any success. The Book-Hunter at Home Boil the sifted glass with strong commercial hydrochloric acid to remove iron, wash with distilled water and a few drops of alcohol, dry on blotting paper in the sun or otherwise. On Laboratory Arts But when a puff of the fumes of hydrochloric acid, hydriodic acid, or nitric acid is thrown into the beam, there is a complete reversal of the selenite tints. Fragments of science, V. 1-2 Place the fabric or threads containing animal fibers in cold, concentrated hydrochloric acid. Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades The latter also, when distilled with hydrochloric acid, yields a larger proportion of furfuraldehyde than is obtained from nitrocellulose and nitrohydrocellulose. Researches on Cellulose 1895-1900 It is more effectual to follow the bath of oxalic acid by applying a solution of one part hydrochloric acid to six parts of water, after which bathe in cold water, and dry slowly. A Book for All Readers An Aid to the Collection, Use, and Preservation of Books and the Formation of Public and Private Libraries Saturated solution of alum, 20 ounces; and hydrochloric acid, 1 ounce.p. Practical Mechanics for Boys Muriatic acid, an acid, composed of chlorine and hydrogen, called, also, hydrochloric acid, and spirit of salt. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School Bleaching powder bleaches by having its hypochlorous acid set free, which in turn gives up oxygen, being converted into hydrochloric acid. Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades The dilute acid filtered from the product contained no hydrochloric acid nor by-products of action. Researches on Cellulose 1895-1900 These inorganic salts can be removed by immersion of the bone in weak hydrochloric acid, and a flexible network of connecting tissue, Haversian vessels, bone corpuscles, and their processes remains. Text Book of Biology, Part 1: Vertebrata The palm oil, freed from solid impurities by melting and subsidence, is placed in the bleaching tank, and washed with water containing a little hydrochloric acid. The Handbook of Soap Manufacture Dilute hydrochloric acid of from 1° to 2° Tw. in strength, used in the cold, has no action on cellulose. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student To a fresh sample of soil add some hydrochloric acid. Lessons on Soil Cl, of which approximately one-half is converted into hydrochloric acid. Researches on Cellulose 1895-1900 When hydrochloric acid and zinc are made to act on nitro-prusside of sodium, a corresponding zinc compound is formed of a deep orange colour, slightly soluble in water, and not permanent. Field's Chromatography or Treatise on Colours and Pigments as Used by Artists The charcoal is then separated from the liquor and treated with hydrochloric acid; opinions differ as to the amount of acid to be used. The Handbook of Soap Manufacture Boiling dilute hydrochloric acid of 10° Tw. disintegrates cellulose very rapidly. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The explanation of this is found in the fact that hydrobromic acid is much less stable than hydrochloric acid, and is therefore more easily oxidized. An Elementary Study of Chemistry It is then diluted, the extract poured off, neutralised with hydrochloric acid, treated with sufficient alcohol, and the hemicellulose filtered, dried, and weighed. Researches on Cellulose 1895-1900 Titanium green is a ferrocyanide of that metal, produced by adding yellow prussiate of potash to a solution of titanic acid in dilute hydrochloric acid, and heating the mixture to ebullition rapidly. Field's Chromatography or Treatise on Colours and Pigments as Used by Artists Sulphites give with barium chloride a precipitate soluble in hydrochloric acid. The Handbook of Soap Manufacture For this purpose the goods are passed into a bath of hydrochloric acid or of weak sulphuric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student This substance is obtained by neutralizing ammonium hydroxide with hydrochloric acid. An Elementary Study of Chemistry It was noted at the same time that the colour reaction of the original solution with phloroglucol and hydrochloric acid was a deep violet, in contradistinction to the characteristic red of the pentoses. Researches on Cellulose 1895-1900 The dark green precipitate is washed with water acidulated with hydrochloric acid, and dried with great care, since it decomposes at temperatures above 100100°. Field's Chromatography or Treatise on Colours and Pigments as Used by Artists After thoroughly shaking, acidulate with dilute hydrochloric acid, when a blue coloration will be produced if prussic acid is present. The Handbook of Soap Manufacture Dye at the boil for one hour, rinse slightly in cold water, then enter into a fresh cold bath prepared with 4 lb nitrite of soda previously dissolved in water, and 12½ lb. hydrochloric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student This substance can be made by dissolving mercuric oxide in hydrochloric acid. An Elementary Study of Chemistry Liquid glues are also made by rendering ordinary glue non-gelatinizing, which can be done by several means; as, for instance, by the addition of oxalic, nitric, or hydrochloric acid to the glue solution. Handwork in Wood It is furnished by acting on quinine with hypochlorite of lime, hydrochloric acid, and ammonia, successively. Field's Chromatography or Treatise on Colours and Pigments as Used by Artists This is dissolved in water, rendered faintly acid with dilute hydrochloric acid, and a strip of turmeric paper immersed for a few minutes in the liquid. The Handbook of Soap Manufacture The above, put into words, means that when paranitroaniline is dissolved with hydrochloric acid and treated with nitrite of soda it forms diazonitro benzene chloride, sodium chloride and water. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student What reaction would you expect to take place when lead peroxide is treated with hydrochloric acid? An Elementary Study of Chemistry In order to do this, small pieces of the leaf should be boiled for about a minute in strong caustic potash, and then treated with acetic or hydrochloric acid. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses If you add a few drops of hydrochloric acid, the melting will go on much faster; and if you warm up the tube to about the heat of the body, it will proceed faster still. A Handbook of Health We apparently owe to him the introduction of many chemical substances, for instance of hydrochloric acid, which he prepared from oil and vitriol of salt, and of many vegetable drugs. Old-Time Makers of Medicine The Story of The Students And Teachers of the Sciences Related to Medicine During the Middle Ages For diazotising one molecule of base requires one molecule of hydrochloric acid to form a salt of the base, a molecule of nitrite of soda, and another molecule of hydrochloric acid to decompose the nitrite. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student What is meant by the statement that hydrochloric acid is one of the strongest acids? An Elementary Study of Chemistry Boil the ash left in the crucible with a little strong hydrochloric acid and dilute with water. The Dyeing of Woollen Fabrics Sulphuric acid gives a white precipitate of calcium sulphate with strong solutions; ammonium oxalate gives calcium oxalate, practically insoluble in water and dilute acetic acid, but readily soluble in nitric or hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Hydrobromic Acid.—This acid, HBr, the only compound of hydrogen and bromine, is in many respects similar to hydrochloric acid, but is rather less stable. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" In carrying out the diazotisation, the base is first dissolved in the whole amount of hydrochloric acid which has to be used, and the solution is filtered. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student On decomposition 100 l. of hydrochloric acid would yield how many liters of hydrogen and chlorine respectively, the gases being measured under the same conditions? An Elementary Study of Chemistry Logwood blacks can be readily distinguished from nearly all other blacks, in that by treatment with moderately strong hydrochloric acid they turn a bright red. The Dyeing of Woollen Fabrics It can be purified by solution in hydrochloric acid and subsequent precipitation by metallic zinc. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" A. Mix the substance with a little pure hydrochloric acid and glycerin, and introduce into the flame on a coil of platinum wire. Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. However, the diazotisation is better carried out with hydrochloric acid, and the presence of the latter is necessary to give stability to the solution. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Write the equations representing the reactions between magnesium and hydrochloric acid; between magnesium and dilute sulphuric acid. An Elementary Study of Chemistry Stannous chloride, 10 grammes crystals in 100 c.c. water, with a little hydrochloric acid. The Dyeing of Woollen Fabrics Caesium chloride, CsCl, is obtained by the direct action of chlorine on caesium, or by solution of the hydroxide in hydrochloric acid. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Reinsch's Process.—Boil distilled water with one-sixth or one-eighth of hydrochloric acid, and introduce a slip of bright copper. Aids to Forensic Medicine and Toxicology It is prepared for use by dissolving in hydrochloric acid, 10 lb. naphthylamine ether powder heated with 5 lb. hydrochloric acid and 50 gallons water. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The addition of more hydrochloric acid will convert some of the bismuth hydroxide into bismuth chloride. An Elementary Study of Chemistry Or the wool may be treated to a weak chlorine bath before it is dyed, by first passing it through a weak hydrochloric acid bath and then through a bath of bleaching powder. The Dyeing of Woollen Fabrics Pepsin is the enzyme which acts upon proteids, but it is able to act only in an acid medium—a condition which is supplied by the hydrochloric acid. Physiology and Hygiene for Secondary Schools Tests for Digitalin.—A white substance, sparingly soluble in water, not changed by nitric acid; turns yellow, changing to green, with hydrochloric acid. Aids to Forensic Medicine and Toxicology The developing bath is made in the following manner: 1½ lb. paranitroaniline is mixed with 1½ gallons of boiling water, and 1¾ quarts of hydrochloric acid at 30° to 32° Tw. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The addition of hydrochloric acid in considerable quantity will, however, redissolve the precipitate. An Elementary Study of Chemistry It is better to allow the wool to steep for about an hour in a simple bath of bisulphite, then enter into a weak hydrochloric acid bath for a few hours. The Dyeing of Woollen Fabrics The hydrochloric acid acts on certain of the insoluble mineral salts found in the foods and reduces them to a soluble condition. Physiology and Hygiene for Secondary Schools As hydrochloric acid is a constituent of the gastric juice, the signs of the acid must be looked for. Aids to Forensic Medicine and Toxicology The developing bath is made from 2 lb. orthonitrotoluidine mixed with 12 pints boiling water and 2¼ pints hydrochloric acid; when dissolved allow to cool and then add 12½ lb. ice. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student This is a reversible reaction, however, and hydrolysis can therefore be prevented by first adding a considerable amount of the soluble product of the reaction, namely, hydrochloric acid. An Elementary Study of Chemistry Another method of chloring the wool is to pass the goods through a bath made with 100 gallons of water, 2 gallons hydrochloric acid and 2 gallons bleaching powder solution of 16��Tw. The Dyeing of Woollen Fabrics Soak such a bone over night in a mixture of one part hydrochloric acid and four parts water. Physiology and Hygiene for Secondary Schools In the case of the solid organs, dry, incinerate, digest ash in hydrochloric acid, evaporate nearly to dryness, dilute with water, and test. Aids to Forensic Medicine and Toxicology The diazotisation is better carried out and the diazo solution rendered more stable if another molecule of hydrochloric acid and an excess of nitrite of soda are used. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student While studying the action of hydrochloric acid upon the mineral pyrolusite, in 1774, Scheele obtained a yellowish, gaseous substance to which he gave a name in keeping with the phlogiston theory then current. An Elementary Study of Chemistry This is remedied by adding a little hydrochloric acid. The Dyeing of Woollen Fabrics Barely cover the marble with water, and then add hydrochloric acid until a gas is rapidly evolved. Physiology and Hygiene for Secondary Schools Nitrate of baryta will show the presence of sulphuric acid, and nitrate of silver of hydrochloric acid. Aids to Forensic Medicine and Toxicology The developing bath is made from 1¾ lb. beta-naphthylamine dissolved with the aid of 10 pints boiling water and 1 pint hydrochloric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Instead of using hydrochloric acid in the preparation of chlorine it will serve just as well to use a mixture of sodium chloride and sulphuric acid, since these two react to form hydrochloric acid. An Elementary Study of Chemistry But Foerster6 objects to this method because he finds the color to be due to the presence of furfurol, and that pure amyl alcohol gives no color with aniline and hydrochloric acid. Scientific American Supplement, No. 365, December 30, 1882 Hydrogen.—Fill a test tube one third full of strong hydrochloric acid and drop into it several small scraps of zinc. Physiology and Hygiene for Secondary Schools Tests.—Black precipitate with sulphuretted hydrogen; white with hydrochloric acid. Aids to Forensic Medicine and Toxicology Another aniline black: For 100 lb. cotton use 11 lb. aniline oil, 15 lb. bichromate of soda, 40 lb. hydrochloric acid and 160 gallons water or 12 lb. sulphuric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Chlorine has a strong affinity for hydrogen, uniting with it to form hydrochloric acid. An Elementary Study of Chemistry Jorissen5 tests for fusel oil by adding 10 drops of colorless aniline and 2 to 3 drops of hydrochloric acid to 10 c.c. of the alcohol. Scientific American Supplement, No. 365, December 30, 1882 Pour strong hydrochloric acid on a little manganese dioxide in a test tube, and warm gently over a low flame. Physiology and Hygiene for Secondary Schools It gives a red colour with brucine, turns the green sulphate of iron black, and with hydrochloric acid dissolves gold. Aids to Forensic Medicine and Toxicology The cheapest and most convenient method of obtaining nitrous acid for diazotising is by the action of a mineral acid, preferably hydrochloric acid, upon nitrite of soda. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student When a strip of paper moistened with warm turpentine is placed in a jar of chlorine dense fumes of hydrochloric acid appear and a black deposit of carbon is formed. An Elementary Study of Chemistry Fuming hydrochloric acid and aqua regia attack thorium readily, but the alkalies are without action. Scientific American Supplement, No. 365, December 30, 1882 Then add some hydrochloric acid and observe the result. Physiology and Hygiene for Secondary Schools With hydrochloric acid and sulphuretted hydrogen First a yellowish and then a black colour. Aids to Forensic Medicine and Toxicology When dissolved allow to cool; add 27 lb. ice and 2 pints hydrochloric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The preparation of hydrochloric acid may be discussed under two general heads: 1. An Elementary Study of Chemistry Filter off the precipitate and wash with hot water containing a little sodium acetate, dissolve it off the filter with hot dilute hydrochloric acid, add ammonia in excess, and pass sulphuretted hydrogen for five minutes. A Text-book of Assaying: For the Use of Those Connected with Mines. The latter are dissolved in the water and include, besides several salts, three active chemical agents—hydrochloric acid, pepsin, and rennin. Physiology and Hygiene for Secondary Schools The residue of the material after digestion with hydrochloric acid and potassium chlorate may have to be examined for silver, lead, and barium. Aids to Forensic Medicine and Toxicology Nitrosamine red in 5 gallons of water and 2¼ lb. hydrochloric acid, when well mixed there is added 2½ lb. acetate of soda, when all is dissolved add sufficient water to make 6½ gallons. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The hydrochloric acid formed is very soluble in water, and so does not escape from the solution; hence a state of equilibrium is soon reached between the four substances represented in the equation. An Elementary Study of Chemistry With less than 5 c.c. of strong hydrochloric acid the finishing point is indistinct and prolonged. A Text-book of Assaying: For the Use of Those Connected with Mines. This is due to the presence of the hydrochloric acid, the ptyalin being unable to act in an acid medium. Physiology and Hygiene for Secondary Schools Sulphate of lime in excess gives a white precipitate, soluble in nitric or hydrochloric acid, but insoluble in oxalic, tartaric, acetic, or any vegetable acid. Aids to Forensic Medicine and Toxicology To confirm these the following chemical tests may be applied: Boil the ash left in the crucible with a little strong hydrochloric acid and dilute with water. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student When concentrated sulphuric acid, in which hydrochloric acid is not soluble, is poured upon dry salt the reaction is complete. An Elementary Study of Chemistry Take up with 5 c.c. of dilute hydrochloric acid, add 10 grams of potash dissolved in 30 c.c. of water, and warm till the tin is dissolved. A Text-book of Assaying: For the Use of Those Connected with Mines. Then add enough hydrochloric acid to give a slightly sour taste. Physiology and Hygiene for Secondary Schools The contents of the stomach, or the solid organs minced up, should be boiled with pure hydrochloric acid and water, then filtered. Aids to Forensic Medicine and Toxicology Stannous chloride, 10 grams crystals in 100 c.c. water, with a little hydrochloric acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The product formed in either case is hydrochloric acid. An Elementary Study of Chemistry Add dilute hydrochloric acid in small excess to the hot dilute solution, which must contain free nitric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. After distilling off the ether, the residue is treated with strong hydrochloric acid, the neutral or slightly acid solution filtered off from resinous particles, slowly evaporated to crystallization, and the crystals purified by repeated recrystallization. Scientific American Supplement, No. 315, January 14, 1882 Boil the finely divided substance with about one-eighth its bulk of pure hydrochloric acid; add from time to time potassic chlorate until the solids are reduced to a straw-yellow fluid. Aids to Forensic Medicine and Toxicology To polish them, dip a rag in hydrochloric acid and rub till clean; then dry in hot sawdust and polish with chamois leather. The Girl's Own Paper, Vol. VIII, No. 354, October 9, 1886 The substance is very soluble in water, and it is this solution which is usually called hydrochloric acid. An Elementary Study of Chemistry In the case of galena the best method of getting the lead into solution is to treat with hydrochloric acid and zinc. A Text-book of Assaying: For the Use of Those Connected with Mines. The distillate is neutralized with hydrochloric acid, and the whole evaporated to a weak sirupy consistence. Scientific American Supplement, No. 315, January 14, 1882 Liquor potassæ and sulphate of iron give a brownish-green precipitate, which turns to Prussian blue with hydrochloric acid. Aids to Forensic Medicine and Toxicology Ztg. to pour crude hydrochloric acid upon the hectograph, rub with a wad of cotton, then wash off by holding under cold running water and drying with a cloth. Scientific American Supplement, No. 1178, June 25, 1898 Other experiments show that the volume of hydrochloric acid formed is just equal to the sum of the volumes of hydrogen and chlorine. An Elementary Study of Chemistry Put 1 gram of the ore in an evaporating dish 4 inches across, and cover with 10 c.c. of dilute hydrochloric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. The principal nuisances which the inspectors have to prevent are the escape of hydrochloric acid gas from alkali works and of sulphurous gas from vitriol and manure works. Scientific American Supplement, No. 717, September 28, 1889 Tests.—Nessler's reagent is the most delicate, a reddish-brown colour or precipitate being produced, but ammonia may be recognized by its pungent odour, dense fumes given off with hydrochloric acid, and strong alkaline reaction. Aids to Forensic Medicine and Toxicology Let settle, pour off the hydrochloric acid, substitute nitric acid in its place, and boil again for two or three minutes. Scientific American Supplement, No. 1178, June 25, 1898 Although hydrochloric acid is incombustible, it can be oxidized under some circumstances, in which case the hydrogen combines with oxygen, while the chlorine is set free. An Elementary Study of Chemistry The student should next practise the titration with bichromate, which is more especially valuable in the estimation of hydrochloric acid solutions. A Text-book of Assaying: For the Use of Those Connected with Mines. The yield of ammonia was not in any case increased by the presence of the hydrochloric acid. Scientific American Supplement, No. 717, September 28, 1889 The iron may be dissolved by placing the stain in a dilute solution of hydrochloric acid, when, on adding ferrocyanide of potassium, Prussian blue is produced. Aids to Forensic Medicine and Toxicology According to the same law, a certain weight of soda would always require a certain specific equivalent weight of an acid, say hydrochloric acid, to neutralise its alkaline or basic properties, producing a salt. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association Hydrobromic acid very strikingly resembles hydrochloric acid in physical and chemical properties. An Elementary Study of Chemistry Transfer to a flask; and boil, first with hydrochloric acid until the oxides are dissolved, and then with the help of nitric acid, until nothing metalliferous is left. A Text-book of Assaying: For the Use of Those Connected with Mines. These proteid-bound phosphorus salts can only be properly utilised when the hydrochloric acid of the stomach juice is well formed, for it converts them into acid salts which are readily absorbed. The Healthy Life, Vol. V, Nos. 24-28 The Independent Health Magazine Hydrogen and chlorine combine under the action of light with explosive rapidity to form hydrochloric acid and there are many other examples of the synthesizing action of light. Artificial Light Its Influence upon Civilization Carbonates.—The solution should not effervesce on addition of nitric or hydrochloric acid. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association What weight of sodium chloride is necessary to prepare sufficient hydrochloric acid to saturate 1 l. of water under standard conditions? An Elementary Study of Chemistry The oxide is a green powder, readily and completely soluble in hydrochloric acid, and without action on litmus paper. A Text-book of Assaying: For the Use of Those Connected with Mines. Raw-beef Soup.—This is made by chopping up one pound of raw beef and placing it in a bottle with one pint of water and five drops of strong hydrochloric acid. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada It does not resist so well hydrochloric acid or sulfur dioxide or alkalies. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Sulphates.—No appreciable precipitate should be produced on adding hydrochloric acid and barium chloride. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association A solution contains 18 g. of hydrochloric acid per 100 cc. An Elementary Study of Chemistry The necessity for precipitating from a hydrochloric acid solution is seen from the following determinations. A Text-book of Assaying: For the Use of Those Connected with Mines. For heart-burn the popular remedy, magnesia may be taken or dilute hydrochloric acid with nux vomica. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada In applying this method, known as the amylo process, to corn, the meal is mixed with twice its weight of water, acidified with hydrochloric acid and steamed. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Nitric acid acts like sulphuric and hydrochloric acids, but it gives a yellow colour to the fibre. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association A solution of hydrochloric acid in benzene does not conduct the electric current. An Elementary Study of Chemistry Re-dissolve in hydrochloric acid, and separate the iron by precipitating with ammonia and filtering. A Text-book of Assaying: For the Use of Those Connected with Mines. Also, five drops of diluted hydrochloric acid in water, taken after meals, through a tube, and one or two drops of nux vomica before meals is beneficial. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Time after time it has been announced positively that the problem was solved, that the ammonia-soda makers had devised a method of producing hydrochloric acid or chlorine, or both, without the use of sulphuric acid. Scientific American Supplement, No. 611, September 17, 1887 You may first evaporate to a small bulk, adding a drop of hydrochloric acid if the liquid becomes muddy. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association Since the hydrochloric acid liberated in the third equation is free to act upon manganese dioxide, it will be seen that all of the chlorine originally present in the sodium chloride is set free. An Elementary Study of Chemistry Pyrites, mispickel, &c., are insoluble in hydrochloric acid, but they are readily attacked by nitric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. The agitation with magnesia causes the preparation to assume a yellow color; but by rendering it very slightly acid, with one drop of five per-cent hydrochloric acid, this color all disappears. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Sulphate of sodium is formed, and a large amount of hydrochloric acid is given off. Scientific American Supplement, No. 611, September 17, 1887 Sulphates.—A solution of barium chloride and dilute hydrochloric acid gives a white turbidity. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association The manganese dioxide and the hydrochloric acid are brought together in a flask, as represented in Fig. An Elementary Study of Chemistry |
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