| 单词 | potassium hydroxide |
| 例句 | Using cobalt hydroxide and lithium hydroxide as starting materials, with sodium or potassium hydroxide as an additive, the team conducted a series of high-precision experiments under varying conditions to synthesize layered LiCoO2 crystals. Cathode active materials for lithium-ion batteries could be produced at low temperatures 2023-10-23T04:00:00Z The process, known as resomation, uses a mix of potassium hydroxide and water to break down human remains in what is billed as a more sustainable option. Water cremation: Co-op Funeralcare to be first UK company to offer resomation 2023-07-02T04:00:00Z Attempts to recharge an alkaline battery that is not rechargeable often leads to rupture of the battery and leakage of the potassium hydroxide electrolyte. Chemistry 2019-02-14T00:00:00Z In these batteries, a water-based electrolyte spiked with potassium hydroxide or another alkaline material separates a zinc anode and a cathode made of other conductive materials, often porous carbon. Zinc-based cells promise to be cheaper and safer for grid storage 2021-05-27T04:00:00Z The electrolyte is typically spiked with potassium hydroxide, which allows the chemical conversions to occur at a lower voltage, thereby boosting the overall energy efficiency. Chemists close in on greener way to make plastics 2021-02-24T05:00:00Z Wednesday, apparently when a truck jackknifed on the bridge and was struck by another truck hauling potassium hydroxide. Repairs to bridge linking Ohio, Kentucky to take weeks 2020-11-12T05:00:00Z Officials said the potassium hydroxide contributed to the heat and duration of the fire, the Cincinnati Enquirer reported. National Digest: Fiery crash closes bridge between Ohio and Kentucky 2020-11-11T05:00:00Z Aqueous solutions of phosphoric acid and potassium hydroxide react to produce aqueous potassium dihydrogen phosphate and liquid water. Chemistry 2019-02-14T00:00:00Z The governor said the crash appeared to be caused when a northbound truck jackknifed on the bridge and was struck by another truck hauling potassium hydroxide. Fiery crash closes bridge linking Ohio, Kentucky ‘for days’ 2020-11-11T05:00:00Z First, air is channelled by fans onto a honeycombed plastic slab called a contactor, where CO2, which is acidic, reacts with aqueous potassium hydroxide, which is alkaline. Extracting carbon dioxide from the air is possible. But at what cost? 2018-06-07T04:00:00Z This eco-friendly method uses an alkaline solution made with potassium hydroxide to dissolve the body, leaving just the skeleton, which is then dried and pulverised to a powder. What do people want to happen at the end their life? 2018-05-17T04:00:00Z At the plant, a strong alkaline solution of potassium hydroxide reacts with the CO2 in ambient air. Emissions: We have the technology : Nature : Nature Research 2017-10-10T04:00:00Z As their name suggests, these types of batteries use alkaline electrolytes, often potassium hydroxide. Chemistry 2019-02-14T00:00:00Z The technique has its origins in an 1888 patent for making fertilizer and gelatin, which describes dissolving animal parts in an alkaline solution such as potassium hydroxide. Dissolve the Dead? Controversy Swirls around Liquid Cremation 2017-09-07T04:00:00Z This produces potassium hydroxide, which is recycled back to the contactor, and pellets of calcium carbonate. Extracting carbon dioxide from the air is possible. But at what cost? 2018-06-07T04:00:00Z The plant uses fans to push air through towers containing potassium hydroxide solution, which reacts with CO2 to form potassium carbonate; the remaining air, now containing less CO2, is released. Companies that suck carbon from air line up customers 2015-10-13T04:00:00Z The company uses potassium hydroxide in the liquid electrolyte that keeps the fuel cell cooler than in previous incarnations. AFC Energy -- Another Player In The Fuel Cell Arena 2015-06-09T04:00:00Z Alkaline batteries are prone to leaking potassium hydroxide, so they should be removed from devices for long- term storage. Chemistry 2019-02-14T00:00:00Z The proton and potassium pumps were better able to compensate for the damage to the cell membrane when the medium was enhanced with the potassium chloride and potassium hydroxide. Super Yeast Tolerates Heat and Alcohol 2014-10-03T04:00:00Z The mixture is gradually heated up to 400 with nitrogen gas until the potassium hydroxide melts off and chars with the spent coffee. Could Disposable Coffee Pods Help Stem Climate Change? 2013-05-08T14:45:15.147Z The electrolyte is a solution of potassium hydroxide. 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 That, he says, is the biggest misconception about alkaline hydrolysis, a green alternative to cremation that involves liquefying human remains with potassium hydroxide and 300F heat. The Greening of Death 2011-11-03T20:50:24Z The process involves pressurized water, potassium hydroxide and electric heat to generate an accelerated chemical reaction similar to what occurs to bodies when they are buried in the ground. Florida funeral home offers eco-friendly cremations 2011-10-10T22:47:58Z All interpretations of osteological characters are based on specimens cleared in potassium hydroxide and stained with alizarin red. A Review of the Middle American Tree Frogs of the Genus Ptychohyla 2011-02-28T03:00:32.093Z The second method developed by Plaza and colleagues uses basic potassium hydroxide to create a more intricate surface on the spent coffee grounds. Could Disposable Coffee Pods Help Stem Climate Change? 2013-05-08T14:45:15.147Z The prismatic variety of the oxide can be obtained by crystallization from a saturated boiling solution in potassium hydroxide, or by the crystallization of a solution of silver arsenite in nitric acid. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" Add phenolphthalein to the filtrate and titrate with N/10 acid and calculate the per cent. of free alkali as sodium or potassium hydroxide. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Now to the etherial solution, add about half its volume of a concentrated solution of potassium hydroxide in methyl alcohol. The Chemistry of Plant Life Sodium and potassium hydroxide solutions precipitate green chromium hydroxide from solutions of chromic salts; the precipitate is soluble in excess of the cold alkali, but is completely thrown down on boiling the solution. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The potash-lime is made as follows: 1 kilogram of commercial potassium hydroxide, pulverized, is dissolved in 550 to 650 cubic centimeters of water and 1 kilogram of pulverized quicklime added slowly. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man In Fleitmann’s test, the solution containing the arsenious compound is mixed with pure potassium hydroxide solution and a piece of pure zinc or aluminium foil dropped in and the whole then heated. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" The alcohol should be redistilled from potassium hydroxide over which it has been standing for some time, or with which it has been boiled for some time, using a reflux condenser. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Enolic Forms.—A final avenue for the interconversion of glucose, mannose, and fructose into one another, is through the spontaneous transformations which these undergo when dissolved in water containing sodium hydroxide or potassium hydroxide. The Chemistry of Plant Life Balard determined the volume composition of the gas by decomposition over mercury on gentle warming, followed by the absorption of the chlorine produced with potassium hydroxide, and then measured the residual oxygen. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" All experiments with potassium hydroxide in the form of sticks or in solution failed to give the desired results and the use of soda-lime has supplemented all other forms of carbon dioxide absorption. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Action of the halogen elements on potassium hydroxide. An Elementary Study of Chemistry Pipette 50 cc. of the alcoholic potassium hydroxide solution into the flask, allowing the pipette to drain for a definite time. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. When fused with a mixture of dry sodium and potassium hydroxides, it is decomposed into oxalic and acetic acids. The Chemistry of Plant Life It is decomposed by heat into the oxide and water, and is soluble in ammonia but not in excess of dilute potassium hydroxide; this latter property serves to distinguish it from zinc hydroxide. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" It is sometimes possible to distend or swell the flesh by utilizing a 1- to 3-percent solution of sodium hydroxide or potassium hydroxide, sometimes referred to as caustic potash. The Science of Fingerprints Classification and Uses When bromine is added to a hot concentrated solution of potassium hydroxide there is formed a mixture of potassium bromide and potassium bromate in accordance with the reactions already discussed. An Elementary Study of Chemistry The solution must be clear and the potassium hydroxide free from carbonates. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. If heated with solution of potassium hydroxide, odour of aniline is given off; if liquid, when it is warmed with a few drops of chloroform, a penetrating and unpleasant odour of isocyanide. Aids to Forensic Medicine and Toxicology After the potassium hydroxide is approximately half consumed in the first bulb of the absorption apparatus, potassium bicarbonate is formed, and as it is much less soluble than the carbonate, it often precipitates. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes It is also suggested that the fingerprint examiner wear rubber gloves when using acetone, benzine, xylene, formaldehyde, potassium hydroxide, or sodium hydroxide. The Science of Fingerprints Classification and Uses It is used in the preparation of ammonia, bleaching powder, and potassium hydroxide. An Elementary Study of Chemistry Traces of ethyl alcohol in solutions are detected and estimated by oxidation to acetaldehyde, or by conversion into iodoform by warming with iodine and potassium hydroxide. The Project Gutenberg Encyclopedia Volume 1 of 28 Did he obtain air using chemical methods, releasing the oxygen contained in potassium chlorate by heating it, meanwhile absorbing the carbon dioxide with potassium hydroxide? Twenty Thousand Leagues Under the Sea How many grams of pure potassium hydroxide are required for exactly 1 liter of normal alkali solution? An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Pyrex distilling flask are placed 150 g. of potassium hydroxide. Organic Syntheses Write equations for the preparation of potassium hydroxide by three different methods. An Elementary Study of Chemistry What would take place if a bit of potassium hydroxide were left exposed to the air? An Elementary Study of Chemistry To absorb it, we would need to fill containers with potassium hydroxide and shake them continually. Twenty Thousand Leagues Under the Sea One gram of crude ammonium salt is treated with strong potassium hydroxide solution. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The upper layer is separated and dried with solid potassium hydroxide. Organic Syntheses This salt, as has just been explained, can be made by the action of chlorine on strong potassium hydroxide solutions. An Elementary Study of Chemistry Write the equations for the reactions between sodium hydroxide and bromine; between potassium hydroxide and iodine. An Elementary Study of Chemistry Phosphine is usually made by heating phosphorus with a strong solution of potassium hydroxide, the reaction being a complicated one. An Elementary Study of Chemistry Partly because of this poor yield and partly because the potassium hydroxide is rather expensive, this process is not an economical one for the preparation of potassium chlorate. An Elementary Study of Chemistry Notes Toward the end of the reaction, a crust of potassium bromide may tend to cover the melted potassium hydroxide. Organic Syntheses By referring to the reaction between chlorine and hot concentrated solutions of potassium hydroxide, it will be seen that only one molecule of potassium chlorate is formed from six molecules of potassium hydroxide. An Elementary Study of Chemistry When any one of the three halogen elements—chlorine, bromine, and iodine—is added to a solution of potassium hydroxide a reaction takes place, the nature of which depends upon the conditions of the experiment. An Elementary Study of Chemistry This represents in a single equation the action of chlorine on hot, concentrated solutions of potassium hydroxide. An Elementary Study of Chemistry Apparently this is because it facilitates the solution of bromostyrene in the tarry by-products and thus causes it to polymerize instead of reacting with the potassium hydroxide. Organic Syntheses |
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