| 单词 | acidify |
| 例句 | It is a process in which beneficial bacteria, yeasts, or other microorganisms break down and acidify food, transforming and preserving it. Building bold flavors and reducing food waste with fermentation 2022-08-29T04:00:00Z Had we mastered that skill 30-odd years ago, would we be where we find ourselves today, grappling with violent xenophobia while forests incinerate, oceans rise and acidify, magnificent organisms everywhere fade away? Barry Lopez Travels to the Ends of the Earth, Seeking Glimmers of Hope 2019-04-02T04:00:00Z The previous year, a toxic algal bloom, likely caused by warming and acidifying waters, shut down crab fisheries for months. Cioppino This Good Can’t Be a Cliché 2022-05-02T04:00:00Z Time To Lime?Not all leaves acidify the soil, but oak leaves and pine needles certainly do. Get Your Mulch for Free 2011-09-22T20:50:01.960Z During her lifetime, the oceans will acidify at a rate not seen in 66 million years. ‘Everything is not going to be okay’: How to live with constant reminders that the Earth is in trouble 2019-01-24T05:00:00Z Buried within was a streak of cussedness that acidified the sweetness of his lines. David Budbill, a Poet of Small-Town Vermont, Dies at 76 2016-09-30T04:00:00Z Marine heat waves, acidifying oceans and other climate impacts are “significantly altering U.S. marine ecosystems at a pace, magnitude and extent that is unprecedented over millennia,” the report says. 'Every bit matters': Six key takeaways from the latest U.S. climate report 2023-11-14T05:00:00Z It is not pleasant to imagine that human activity is making the planet uninhabitable, but we typically think of this in terms of greenhouse gases, rising sea levels or acidifying the oceans. Earth's salt cycle is swinging out of balance, posing yet another “existential threat," study finds 2023-10-31T04:00:00Z These plantations can also directly degrade ecosystems by reducing stream flow, depleting groundwater, and acidifying soils. Carbon-capture tree plantations threaten tropical biodiversity for little gain, ecologists say 2023-10-03T04:00:00Z The seaweed grown in acidified water actually grew more, photosynthesized more effectively, and showed no significant increase in drag. Ocean acidification makes ecologically important seaweed species fragile 2023-09-25T04:00:00Z It's well established that rising global temperatures, driven by the burning of fossil fuels, are making dramatic changes to our oceans, from increasing sea levels and intensifying storms to acidifying the water itself. Greener oceans due to climate change, new study suggests 2023-07-14T04:00:00Z Look to nursery shelves for products that will acidify the soil and blue your blooms. Do yellow flowers repel insects? And other garden facts and fictions. 2023-06-24T04:00:00Z The threats, the killers, are legion: Warming streams, dammed rivers, an acidifying ocean, impassable culverts, toxins in every tire on every car, stormwater runoff, watersheds choked by sprawl, vanishing floodplains, armored shorelines, abundant sea lions. null 2023-06-24T04:00:00Z Yes, in “Blue Skies” the planet’s shine appears to be dimming — its resources depleted, its heat-trapping gases turning forests to dust and acidifying the oceans. It's the end of the world, and T.C. Boyle's characters feel meh 2023-05-11T04:00:00Z In general, the acidified seaweed broke more easily and died more often. Ocean acidification makes ecologically important seaweed species fragile 2023-09-25T04:00:00Z The first step uses electricity to temporarily acidify the water, which encourages the removal of CO2. Scientists Are Trying to Pull Carbon Out of the Ocean to Combat Climate Change 2023-02-27T05:00:00Z Regardless of how well nations accomplish that, big lakes probably will continue acidifying as they absorb carbon dioxide already in the atmosphere, plus carbon-laden water runoff from land, she said. Scientists: Atmospheric carbon might turn lakes more acidic 2022-12-19T05:00:00Z Acid mining pollutes nearby streams by acidifying water and discharging highly toxic by-products. Biology for AP Courses 2022-06-09T00:00:00Z Together with one of her Ph.D. supervisors, JCU marine biologist Philip Munday, Dixson pioneered research into the effects on fish of rising CO2 levels in the atmosphere, which cause the oceans to acidify. Star marine ecologist committed misconduct, university says 2022-08-09T04:00:00Z Diluting manure with water or acidifying it, leaving cows out to pasture more and giving them lower protein feed can also help to reduce harmful gasses. Why Dutch farmers are protesting over emissions cuts 2022-07-28T04:00:00Z The report said that climate change continues to warm and acidify the ocean, and several marine heat waves on the Great Barrier Reef, along the country’s northeast coast, were accompanied by significant coral bleaching events. ‘Crisis and Decline’: Report Paints a Bleak Assessment of Australia’s Environment 2022-07-19T04:00:00Z But other scientists say even those could acidify because their outflow will slow as atmospheric concentrations surge. Scientists: Atmospheric carbon might turn lakes more acidic 2022-12-19T05:00:00Z The carbon dioxide produced can acidify the blood, leading to diabetic ketoacidosis, a dangerous condition in diabetics. Anatomy and Physiology 2013-06-19T00:00:00Z Addressing alkaline soil requires products like sphagnum peat, elemental sulfur, aluminum sulfate, iron sulfate, acidifying nitrogen, and organic mulches, according to Grove Collaborative. 2 easy ways to get rid of moss that don’t involve commercial moss killers 2022-02-26T05:00:00Z Low oxygen levels, in addition to harming sea life, can disrupt food webs and even make marine water more acidified. Washington state seeks tighter wastewater rules for Puget Sound, but sewage plant operators push back 2021-11-27T05:00:00Z Residents of Italy’s island of Sardinia have dealt in recent decades with groundwater contamination caused by acidified floodwaters laden with zinc, cadmium and lead draining from mines, including millennia-old Phoenician ones. Climate Change Is Acidifying and Contaminating Drinking Water and Alpine Ecosystems 2021-11-04T04:00:00Z It led to international agreements curbing the pollutants from burning fossil fuels that acidify rain. Climate change: The environmental disasters we've almost fixed 2021-10-24T04:00:00Z Additionally, once begun, it could never be stopped without immediate catastrophic rebound heating; it would not prevent the oceans from further acidifying; and may turn the blue sky into a perpetual dull haze. Ending the climate crisis means ending capitalism, too 2021-10-09T04:00:00Z The margin of error was 1.7% to 2.9% and the survey chose respondents to match the racial demographics of a state long saturated by climate change warnings about global warming and acidifying Pacific coastal waters. Two-thirds of Oregonians now say climate change is inevitable 2021-09-30T04:00:00Z It encompasses sea-level rise, heavy storms, heat waves, droughts, wildfires, acidifying oceans and disruptions in the sensitive planetary rhythms on which human society developed. Opinion | Global warming is endangering more than we think. We must adjust. 2021-03-26T04:00:00Z If nearby ski areas have to rely on more intensely mineralized and acidified water to make artificial snow, that could compound the problem, McKnight adds. Climate Change Is Acidifying and Contaminating Drinking Water and Alpine Ecosystems 2021-11-04T04:00:00Z This absorption is rapidly warming and acidifying ocean waters, resulting in the deoxygenation of the oceans. We've lost control: The real lessons of the Trump regime and the pandemic 2020-12-22T05:00:00Z “Forests are leached, topsoil erodes, fields fail, deserts advance, seas acidify and storms intensify. Creation is groaning!” Pope urges respect for Paris climate accord, says 'creation is groaning' 2020-09-01T04:00:00Z Likewise, coral reefs that help support the fishing and tourism industries are dying off in record amounts as oceans warm and acidify. Every breath you take: The economic case for marine life 2020-03-07T05:00:00Z From the 1970s onwards, he wrote about how atmospheric pollution was destroying the ozone layer, acidifying the oceans and exacerbating the scale of natural catastrophes. Isaac Asimov: centenary of the great explainer 2020-01-27T05:00:00Z The chemistry of the water itself is acidifying at alarming rates — the cost of relying on our oceans to absorb so much of the world’s heat and carbon emissions. What's tangling up the humpback whales? A food chain snarled by climate change 2020-01-27T05:00:00Z Its iconic Great Barrier Reef is in peril as ocean temperatures rise and atmospheric carbon-dioxide emissions acidify the seas. Opinion | Australia’s apocalyptic fires are a warning to the world 2020-01-06T05:00:00Z It’s helped acidify the soil for plants that need it. Consider easy, more sustainable alternatives to peat moss | Produced by Advertising Publications 2020-01-02T05:00:00Z Now, a new study has found that waters off the California coast are acidifying twice as fast as the global average. Newsletter: How homelessness law now stands 2019-12-17T05:00:00Z Both kinds of nitrogen react to form aerosols that cause smog, damage foliage, and acidify the soil, hindering roots' absorption of nutrients. Nitrogen crisis from jam-packed livestock operations has ‘paralyzed’ Dutch economy 2019-12-04T05:00:00Z The planet is warming, the oceans are acidifying, the Amazon is burning down, and plastic is snowing on the Arctic. Can Spaceflight Save the Planet? 2019-09-06T04:00:00Z The Bureau of Intelligence and Research’s 12-page prepared testimony, obtained by The Washington Post on Friday, includes a detailed description of how rising greenhouse gas emissions are raising global temperatures and acidifying the world’s oceans. White House blocked intelligence agency’s written testimony calling climate change ‘possibly catastrophic’ 2019-06-08T04:00:00Z The new research also raises questions about the health of coral reefs as the oceans warm and acidify. Tiny, Snackable Fish Are Linchpins of Coral Reef Ecosystems 2019-05-23T04:00:00Z This legislation required the state’s coal-fired power plants to reduce their emissions of pollutants that harm human health, over-fertilize the Chesapeake, acidify streams, reduce crop yields and forest health and contribute to our changing climate. Opinion | Don’t forget Mr. Busch’s inspiring environmental legacy 2019-04-12T04:00:00Z Just last month, the national intelligence director delivered a worldwide threat assessment that “climate hazards” including extreme weather, wildfires, droughts and acidifying oceans are worsening, “threatening infrastructure, health, and water and food security.” White House to set up panel to counter climate change consensus, officials say 2019-02-24T05:00:00Z “Climate hazards such as extreme weather, higher temperatures, droughts, floods, wildfires, storms, sea level rise, soil degradation, and acidifying oceans are intensifying, threatening infrastructure, health, and water and food security,” Coats warned. Intelligence chief contradicts Trump on North Korea and Iran 2019-01-29T05:00:00Z As their waters become more acidified, deep-sea corals will be restricted to an increasingly narrow band of optimal conditions. Even corals deep down on the ocean floor can’t escape humanity’s impact 2018-12-09T05:00:00Z Heat waves, heavy precipitation, shrinking glaciers, rising and acidifying seas, coastal flooding, drought, and more frequent wildfires pose a rapidly increasing threat to Americans’ physical, social, and economic well-being. How California’s Efforts to Prevent Wildfires Reflect a National Crisis on Climate Change 2018-11-26T05:00:00Z Fairley's article prompts me to suggest that an alternative way to profit from surplus renewable energy may be to use it to produce hydrogen by electrolysis of acidified water. Readers Respond to the July 2018 Issue 2018-11-03T04:00:00Z Therein lies the tragedy of Pizzi’s work: he can develop new ways to save wildlife, but even if he saves 10,000 animals this year, it’s just a drop in the rapidly acidifying ocean. From sharks to chimps to moon bears: tales of a supervet 2018-08-05T04:00:00Z “My guess is the reason they don’t acidify seawater is they simply aren’t making protons fast enough to do that,” said Dr. Hill. This Burrowing Clam Is Not Boring. It Uses Acid to Make Its Home. 2018-06-14T04:00:00Z But even as seas are rising, coral reefs around the world have been suffering from severe bleaching events and are weakened further by acidifying oceans. The military paid for a study on sea level rise. The results were scary. 2018-04-25T04:00:00Z Shift from coral to macroalgae dominance on a volcanically acidified reef. Carbon dioxide addition to coral reef waters suppresses net community calcification 2018-03-13T04:00:00Z This would, in turn, lead to more greenhouse gases that would warm and acidify the oceans people are anxious to protect. War on plastic 'may cause short-term harm' 2018-03-13T04:00:00Z On the counter sits a large jar labeled “Phlegm of acidified urine.” This chemist is unlocking the secrets of alchemy 2018-01-30T05:00:00Z “Also, it may help acidify Martian soil,” said Elizabeth Johnson, a Villanova senior who took the class. If We Ever Get to Mars, the Beer Might Not Be Bad 2018-01-12T05:00:00Z Belgian brewers famously used wild yeast, even acidifying bacteria, to produce pungent, idiosyncratic beers. Cheers to Beers! 2017-10-12T04:00:00Z The shells of sea snails can dissolve in acidified water. Sea change : Nature : Nature Research 2017-10-10T04:00:00Z With sea life threatened by warming and acidifying oceans, figuring out how to safeguard that genetic diversity is becoming more urgent. Gold, lasers, and antifreeze help reanimate deep-frozen fish 2017-07-13T04:00:00Z Over time, the now giant chambers of Luray Caverns formed, as the acidified water dissolved the limestone away. How Mother Nature and a Pentagon Mathematician Created the World's Largest Instrument 2017-06-09T04:00:00Z The combined aqueous layers were acidified with 1 N HCl precipitating a yellow solid. Effective combinatorial immunotherapy for castration-resistant prostate cancer : Nature : Nature Research 2017-03-19T04:00:00Z Scientists think it may have been caused by intense volcanic activity that released tremendous amounts of carbon dioxide, heating the planet and acidifying the oceans. After Earth’s Worst Mass Extinction, Life Rebounded Rapidly, Fossils Suggest 2017-02-16T05:00:00Z If climate change continues to acidify the oceans, the water will reach a pH at which ocean invertebrates can’t grow their shells; one of these invertebrates, krill, is a dietary staple of many penguin species. A Voyage to the End of the World 2016-05-23T04:00:00Z Some colonies will be bathed in warm water, others in water that’s been acidified, and still others in water that’s both warm and acidified. A Radical Attempt to Save the Reefs and Forests 2016-04-18T04:00:00Z Warmer waters and acidifying oceans threaten to suffocate the Great Barrier Reef, the world’s largest coral reef and one of the world’s most spectacular natural wonders. 2 Countries Reveal How Divided the World Is on Climate Change 2015-11-16T05:00:00Z A collection of scientists from Europe, the U.S. and India have developed a technique that could provide the first global and nearly real-time assessment of our rapidly acidifying seas. Watch Ocean Acidification in Real Time 2015-02-18T05:00:00Z And after 2100, the world will have to live with elevated temperatures and acidified oceans for hundreds of years, according to the latest scientific understanding. We Need A Climate Miracle. Could "New Nuclear" Provide It? 2014-09-24T04:00:00Z Instead of settling on the seafloor, that stray carbon may acidify seawater or escape into the atmosphere. Scraping the Seafloor for Fish Harms Biodiversity 2014-08-20T04:00:00Z As the world warms, and the oceans acidify, and species are reshuffled from one continent to another, it’s increasingly difficult to say what would count as conservation. A Radical Attempt to Save the Reefs and Forests 2016-04-18T04:00:00Z The July 31 news article “Fisheries at risk as oceans acidify” brought attention to a critical and accelerating threat to ocean health. Overfishing and mismanagement have doomed the eastern oyster The current rate at which oceans are acidifying has been unseen in 300 million years and the consequences could be costly. Watch Ocean Acidification in Real Time 2015-02-18T05:00:00Z The Chesapeake Bay, which receives runoff from one of the most densely populated watersheds in the United States, is acidifying three times faster than the rest of the world’s oceans. Marine industries at risk on both coasts as oceans acidify Coral reefs may well be the first entire ecosystem that fails because of human impacts, mainly acidifying the oceans and changes in the water temperatures. A Conversation With: ‘The Sixth Extinction’ Looks at Human Impact on the Environment 2014-02-10T22:31:24Z Crossbreeding requires many generations, and in that time—however long it may be—the seas will have grown that much warmer and more acidified. A Radical Attempt to Save the Reefs and Forests 2016-04-18T04:00:00Z As Bryan Walsh summarized nicely in Time today, a separate review of existing research on marine animals in acidifying conditions, published on Sunday in Nature Climate Change, found uniformly negative impacts. Dot Earth Blog: Papers Find Mixed Impacts on Ocean Species from Rising CO2 2013-08-26T15:51:27Z Soft coral may not always be the winner in acidified waters. Reef-Building Corals Lose Out to Softer Cousins Due To Global Warming 2013-03-25T20:45:02.577Z Every week seems to bring more terrifying climate news, from reports of ice sheets melting ahead of schedule to oceans acidifying far faster than expected. Opinion: Geoengineering: Testing the Waters 2012-10-27T22:27:01Z I went snorkeling in the Bay of Naples, where Jason Hall-Spencer was looking at an unusual natural experiment: The water in one specific place is naturally acidified because of volcanic vents that spew out CO2. A Conversation With: ‘The Sixth Extinction’ Looks at Human Impact on the Environment 2014-02-10T22:31:24Z As more carbon dioxide dissolves in the ocean, the waters acidify, decreasing the concentration of carbonate and making it more difficult for these organisms to form calcium carbonate shells. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z Capable of being acidified, or converted into an acid. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z This may be inferred from the fact that, according to the advocates of these medicines, it is always difficult, and is often impossible, to acidify the stools in cholera. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z These vents have naturally acidified waters that hint at how our seas might change if atmospheric carbon dioxide levels continue to rise. 'Jacuzzi vents' model CO2 future 2012-02-19T14:53:46Z But by the vents, you see what the acidified ocean of the future might look like: an underwater moonscape. A Conversation With: ‘The Sixth Extinction’ Looks at Human Impact on the Environment 2014-02-10T22:31:24Z Climate change is wreaking havoc on coral reefs, heating and acidifying the waters in which they live. Climate Change Okay for One Coral 2012-02-02T19:00:00Z The act or process of acidifying, or changing into an acid. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z The conception of an acidifying principle, although that principle was identified with a known element, was still tainted with the vices of the alchemical school. Heroes of Science Chemists 2011-12-09T03:00:21.047Z Aurous sulphide, Au2S, is a brownish-black powder formed by passing sulphuretted hydrogen into a solution of potassium aurocyanide and then acidifying. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Eventually -- possibly within 50 years -- they will acidify. The Great Barrier Reef, RIP? 2011-10-12T00:22:01Z 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 To make acid; to convert into an acid; as, to acidify sugar. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z One outcome of this teaching regarding acids and bases was to overthrow the Lavoisierian conception of oxygen as the acidifying element. Heroes of Science Chemists 2011-12-09T03:00:21.047Z In the meantime, those extra CO2 molecules will slosh around from earth to atmosphere to upper ocean and back, absorbing energy, acidifying the seas and changing the planet in profound and potentially unwelcome ways. Why Carbon Dioxide Is a Greenhouse Gas 2011-08-16T19:45:06.200Z By midcentury, virtually all reefs will be at risk, scientists fear, not just from local threats or global warming, but from an increasingly acidified ocean. Week in Review: Under the Sea, Coral Reefs in Peril 2011-06-04T18:14:37Z If, however, it is desired to make a white plantation sugar, or granulated sugar, it will be advisable to subject the juice to an acidifying or bleaching treatment, as well as to the lime treatment. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z It dyes cotton, wool and silk in a bath acidified with acetic acid or alum, yielding a bright yellow colour which is turned brown by alkalis. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z In Costa Rica, like much of the world, there is a need to protect against practices that acidify the soils, and rebuild their organic matter and thus natural capital. Natural capital 2010-03-23T14:44:00Z Fatty acids which are not acidified deliver about 3% of pitch. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. If plasma be weakly acidified with sulphuric acid, then treated with crystals of ammonium sulphate until a slight precipitate forms, filtered and the filtrate allowed to evaporate very slowly, typical crystals of serum-albumin may form. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" It is generally best to administer the acidifying agent before the application of the lime, since this raises the acidity and permits a larger amount of the lime to be used. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z This substance belongs to the group of Acid Colours; hence it is applied to the animal fibres, wool and silk, by boiling in a solution of the colouring matter slightly acidified with sulphuric acid. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z As the food mass is made alkaline in the presence of the intestinal juices, the pyloric valve closes, opening again as the contents nearest it on the stomach side are acidified. Dietetics for Nurses B. caustic soda solution is prepared and added slowly to the acidified oil with constant stirring. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The mixture is then cooled, acidified by means of sulphuric acid, and titrated with decinormal sodium thiosulphate solution. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" In the acidifying of any cane juice, care must be exercised that too high an acidity is not reached, since acids have an inverting effect upon sucrose, thus causing a noticeable loss. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z For the alkali salts in neutral or alkaline solution wool and silk have little or no affinity, but dyeing rapidly occurs if the solution is acidified with sulphuric acid whereby the colour-acid is liberated. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Prolonged soaking in a hot solution of potassium bichromate which has been acidified with sulphuric acid will often prove useful. A Handbook of Laboratory Glass-Blowing Very impure fats yield even a higher percentage in spite of acidifying. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The solution is then acidified, and the phenols are liberated and form an oily layer on the surface of the acid. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" It has been observed that alkalis tend to darken the leather, more or less; therefore, after employing them, a little acidified water must be applied to neutralize their effect. Book Repair and Restoration These show that, for the production of a characteristic keffir, specific organisms are not essential, provided always that those used possess, either individually or collectively, the essential capacity of acidifying, coagulating, and fermenting the milk. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente But the free coloured acid, which is precipitated by acidifying solutions of the salt, is very sparingly soluble in water. Histology of the Blood Normal and Pathological I have here in solution uranium nitrate, plus potassium ferricyanide acidified with acetic acid. Spawn of the Comet Because this air is essential to the formation of acids, it has been called by chemists the acidifying principle, or oxygen gas. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease Evaporate to a thin syrup, acidify strongly with phosphoric acid. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. This substance is readily soluble in hot solution of potash or soda, producing a deep brown liquid, from which it is again deposited in flocks on acidifying. Scientific American Supplement, No. 488, May 9, 1885 For it is not acids floating in the air, but the oxygen or acidifying principle, which injures or enlarges pulmonary ulcers by combining with the purulent matter. Zoonomia, Vol. II Or, the Laws of Organic Life After the greater portion of the alcohol has distilled off, the solution is acidified with sulphuric acid and the azoimide distilled over. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" The silk is worked at 50° to 60°C. in a solution of the dye wood slightly acidified with sulphuric, acetic or tartaric acid. Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer The proof is then fixed, and, if too intense, can be reduced in water slightly acidified with hydrochloric acid. Photographic Reproduction Processes The lower grade of celluloses thus dissolved are only in part precipitated in acidifying the alkaline solution. Researches on Cellulose 1895-1900 This is then evaporated to a small bulk, placed in a Muter's graduated tube, and acidified with mineral acid. The Handbook of Soap Manufacture The solution is then acidified and distilled, when azoimide passes over. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" After 24 hours decant the clear liquid into a second test tube, acidify slightly with HCL, and add a little hydrogen sulphid water. Human Foods and Their Nutritive Value After exposure to the sun the image is developed with a solution of silver nitrate acidified with acetic acid. Photographic Reproduction Processes On acidifying with sulphuric acid and distilling, traces only of volatile acid were produced. Researches on Cellulose 1895-1900 The resinate solution is withdrawn, acidified, and the resin acids collected, dried and weighed. The Handbook of Soap Manufacture When a dilute solution of a chromate or dichromate is acidified with an acid, such as sulphuric acid, no reaction apparently takes place. An Elementary Study of Chemistry By this plan of working more even dyeings can be obtained than by simply entering the goods direct into an acidified dye-liquor. The Dyeing of Woollen Fabrics The developer consists of an almost saturated solution of potassium oxalate acidified by oxalic acid, and for use heated to 80—85 deg. Photographic Reproduction Processes The alkaline solution and washings were acidified and distilled from 10 p.ct. Researches on Cellulose 1895-1900 Fatty acids are detected by the turbidity they produce when the diluted glycerine is acidified. The Handbook of Soap Manufacture Lady Katrine Hawksby is such an acidified piece of envy, so jealous of all her sex, that "every commonly decent marriage of her acquaintance gives her a sad headache." The Friendships of Women The mineral is best treated by the method given in the third paragraph on page 382; but the solution, after being acidified with nitric acid, should be made exactly neutral with ammonia. A Text-book of Assaying: For the Use of Those Connected with Mines. As soon as the desired color is obtained, the proofs are washed in acidified water and dried. Photographic Reproduction Processes 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 When the development of hydrogen ceases, it is necessary to filter warm through a paper filter, and acidify filtrate with a few drops of HCl. Nitro-Explosives: A Practical Treatise Filter off the carbonate and wash it with hot water, testing the slightly acidified washings for sulphate and preserving any precipitates which appear in these tests. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The bismuth is precipitated by the addition of ammonic carbonate, and the solution, after filtering and acidifying with nitric acid, is re-electrolysed. A Text-book of Assaying: For the Use of Those Connected with Mines. In later years Berzelius renounced the ``oxygen acid'' theory, but not before Davy, and, almost simultaneously, Dulong, had submitted that hydrogen and not oxygen was the acidifying principle. The Project Gutenberg Encyclopedia Volume 1 of 28 This liquid contains the cellulose in solution as a cellulose xanthate and on acidifying or heating the cellulose is recovered in a hydrated form. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The mixture is then acidified with the hydrochloric acid solution, and while agitated, an excess of sodium thiosulphate solution is added, the mixture being afterwards allowed to stand a few minutes. Nitro-Explosives: A Practical Treatise Wash the precipitate with dilute ammonia water, as prescribed above, until, finally, 3 cc. of the washings, after acidifying with nitric acid, show no evidence of chlorides. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Effect of Alkalies.—Ammonia, soda, or potash destroys the colour, but it is restored on acidifying with nitric or sulphuric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. On testing it with litmus paper, the solution may be either slightly alkaline or neutral; in either case, it should be faintly acidified with hydrochloric acid. Scientific American Supplement, No. 384, May 12, 1883 I, II., and IV. are made up exactly as for the boiling method, except that No. II. is not acidified. Scientific American Supplement, No. 303, October 22, 1881 The whole of the liquid so obtained was concentrated by evaporation, filtered in order to remove particles of soot or other extraneous matter, and acidified with nitric acid. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Their method is to add fresh yeast to slightly acidified boiling water and continue the boiling for about five minutes. The Vitamine Manual They are filtered off, re-dissolved, and again precipitated in ammonic carbonate solution; the combined filtrates are boiled for some time, and acidified slightly with hydrochloric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. It has been found that the oil may be added more rapidly if the egg is acidified before mixing it with the oil. School and Home Cooking The leaves from which the secretion had been washed were also sent to Prof. Frankland; they were macerated for some hours, then acidified with sulphuric acid and distilled, but no acid passed over. Insectivorous Plants The moistening of the Keppeler paper with hydrochloric acid before use is essential, because if not acidified the paper is marked by acetylene itself. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Substances rich in the vitamine apparently yield the latter more readily if they have first been subjected to autolysis or if the extracting fluid is acidified. The Vitamine Manual For gravimetric work the solution is acidified with hydrochloric acid, then mixed with ammonia in slight excess, boiled, and filtered. A Text-book of Assaying: For the Use of Those Connected with Mines. Shrill are the plaints of Louvet; his thin existence all acidified into rage, and preternatural insight of suspicion. The French Revolution This having been ascertained, the remainder of the fluid was evaporated nearly to dryness, and acidified with sulphuric acid; it then evolved volatile acid vapour, which was condensed and digested with carbonate of silver. Insectivorous Plants The filtrate, which should be light yellow or greenish in color, is acidified with dilute sulfuric acid, with stirring. Organic Syntheses However, Osborne and Wakeman have produced a method of treating fresh yeast by boiling it with slightly acidified water which seem as efficient as autolysis in the yield produced. The Vitamine Manual It is separated from baryta by dissolving in a little hydrochloric acid, adding ammonia in excess, and then acidifying with acetic acid, and precipitating the baryta with potassium bichromate, as described under Baryta. A Text-book of Assaying: For the Use of Those Connected with Mines. Boil off the gas, add ammonia until a precipitate is formed, and then acidify somewhat strongly with acetic acid. A Text-book of Assaying: For the Use of Those Connected with Mines. The filtrate may retain a little nickel; if so, add ammonia till alkaline, then acidify with acetic acid and again filter; any small precipitate obtained here should be added to that first obtained. A Text-book of Assaying: For the Use of Those Connected with Mines. If the sodium sulfite-diazonium salt mixture is acidified before warming or before becoming dark, the red color of the solution does not disappear on heating, and the precipitated phenylhydrazine hydrochloride obtained is colored red. Organic Syntheses The filtered solution is acidified with hydrochloric acid, warmed, and precipitated with sodium sulphite. A Text-book of Assaying: For the Use of Those Connected with Mines. Separation of Nickel and Cobalt.—Dissolve the sulphides separated as above in nitric acid; render alkaline with a solution of potash, then acidify with acetic acid; add a concentrated solution of nitrite of potash. A Text-book of Assaying: For the Use of Those Connected with Mines. Extract with water, acidify with acetic acid, and estimate volumetrically as described under Sulphur. A Text-book of Assaying: For the Use of Those Connected with Mines. The filtrate is acidified with hydrochloric acid, and treated with sulphuretted hydrogen, warmed, rendered slightly alkaline with ammonia, and the gas again passed. A Text-book of Assaying: For the Use of Those Connected with Mines. Notes The free sulfinic acid may be prepared by dissolving the sodium salt in cold water and carefully acidifying the solution with hydrochloric acid. Organic Syntheses The solution, acidified with nitric acid and boiled, contains the arsenic as sodium arsenate. A Text-book of Assaying: For the Use of Those Connected with Mines. The assay solution may be acidified with acetic, sulphuric, or hydrochloric acid before titrating with "hypo;" but it must be only faintly so. A Text-book of Assaying: For the Use of Those Connected with Mines. The alumina is contained in the filtrate, which is acidified with hydrochloric acid and the alumina precipitated therefrom as hydrate with ammonia, as just described. A Text-book of Assaying: For the Use of Those Connected with Mines. Or, if insoluble, the substance is fused with carbonate of soda, extracted with water, and the filtrate acidified with nitric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. Filter, and wash the precipitate with water acidified with sulphuric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. |
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