| 单词 | stearic acid |
| 例句 | Saturated fats in animal products tend to be comprised of palmitic and stearic acid. Is coconut oil healthy or not? There’s a lot of misinformation out there 2017-06-25T04:00:00Z Their invention, which is two years old and now available in about 50 salons across the country, is a gel made of black pigment, acetone and stearic acid that’s painted onto the eye fringe. Skin Deep: Batter Up: Eyelashes Enjoy a Spike 2010-12-29T19:52:53Z But, stearic acid does not increase LDL-cholesterol levels like the other saturated fats. Let them eat more fat? Researcher argues that a balance of types of fat is the key 2019-01-13T05:00:00Z Animal fats with stearic acid and palmitic acid contained in meat, and the fat with butyric acid contained in butter, are examples of saturated fats. Concepts of Biology 2013-04-25T00:00:00Z When animal fats are treated with a base like potassium carbonate or sodium hydroxide, glycerol and salts of fatty acids such as palmitic, oleic, and stearic acid are formed. Chemistry 2019-02-14T00:00:00Z Dark chocolate is higher in fat than milk chocolate, but much of it is a combination of the heart-healthy monounsaturated kind and stearic acid, a type of saturated fat that doesn’t raise cholesterol. The real deal on dark chocolate 2022-02-21T05:00:00Z To be fair, some saturated fats – such as stearic acid and lauric acid – have recently been shown to have neutral effects on blood cholesterol levels. The Great Fat Debate 2015-10-14T04:00:00Z But the same kind of evidence indicates that other saturated fatty acids such as stearic acid, found prominently in dark chocolate but also in meat, and lauric acid, found in coconut, may be innocuous. Dietary Fat: the Good, the Bad and the Ugly 2013-03-18T15:38:00Z While chocolate does contain some saturated fat, it's comprised mostly of stearic acid, and unlike most saturated fats, it doesn't increase your cholesterol levels. A Romantic, Heart-Healthy Valentine's Day Meal 2013-02-06T14:58:00Z Palmitic and stearic acids are saturated acids that contain no double or triple bonds. Chemistry 2019-02-14T00:00:00Z Even the primary fat in chocolate, cocoa butter, isn’t such a health problem because it is made up of stearic acid, which does not raise cholesterol levels, says Golomb. Can Eating Chocolate Help Keep You Slim? 2012-03-27T17:36:28Z Concrete primed with an 8% solution of stearic acid and rosin dissolved in benzine. Paint Technology and Tests 2011-09-15T02:00:12.263Z The researchers used gas chromatography-mass spectrometry to separate out the different molecules in the samples, and found that the coating contained biological long-chain fatty acids including palmitic acid and stearic acid. Ancient Egyptians Used 'Hair Gel' 2011-08-19T21:15:00.420Z Fatty Acids, the homologues of formic and acetic acid; so called because the members first studied were obtained from fats and oils, e.g. butyric acid from butter, stearic acid from stearin, palmitic acid from palm-oil. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z Their invention, which is two years old and now available in about 50 salons across the country, is a gel made of black pigment, acetone and stearic acid that's painted onto the eye fringe. Batter up: Eyelashes enjoy a spike 2010-12-30T01:29:32Z By the use of stearic acid it is a simple matter to reach the neutral point which can be carefully approximated. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Several fatty acids can be present in lecithin from various sources: palmitic and oleic acid, besides the stearic acid which at first had been thought the only one involved. History of Phosphorus Boil eight parts of stearic acid and one part of caustic soda in fifty parts of water, until dissolved. Book Repair and Restoration This, taken in conjunction with the way in which the acid melted, makes it extremely probable that it is a mixture of oleic and stearic acids. Scientific American Supplement, No. 488, May 9, 1885 If you wish to make the parawax harder for the southern sun put in stearic acid. Northern Nut Growers Association Report of the Proceedings at the 13th Annual Meeting Rochester, N.Y. September, 7, 8 and 9, 1922 If too alkaline more stearic acid is added, if too acid more potash lye from that previously reserved. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Dr. Zimmerman said that for grafting wax he had used equal parts of paraffin, stearic acid and beeswax with good results. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 I happen to know as a patent attorney that in the manufacture of candles in order to give paraffin heat resisting qualities they introduce stearic acid. Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting Washington, D. C. October 7 and 8, 1920 Various materials have been recommended for the purpose, those in most general use being sodium bicarbonate, boric acid, cocoa-nut oil, stearic acid, and oleic acid. The Handbook of Soap Manufacture I suppose you might use it in the proportion of one to four of parawax, but very little stearic acid will harden it. Northern Nut Growers Association Report of the Proceedings at the 13th Annual Meeting Rochester, N.Y. September, 7, 8 and 9, 1922 After each addition of lye or stearic acid the mass is crutched from 10 to 15 minutes longer, another sample is taken, cooled and again tested. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Probably stearic acid is the main constituent of this fatty acid. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Ordinary fats consist principally of derivatives of palmitic and stearic acids. An Elementary Study of Chemistry The weight, less the amount of stearic acid or beeswax added, multiplied by 20 gives the percentage of fatty acids. The Handbook of Soap Manufacture The former is composed of the potash salts of fatty acids, principally oleic and stearic acids; the latter of the neutral carbohydrate, cholesterine, with other similar bodies. The Dyeing of Woollen Fabrics Now, however, most of the popular shaving creams are made from stearic acid and cocoanut oil, as a far superior product is obtained by the use of these substances. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Stearine, a constituent of tallow, is a compound of glyceryl and stearic acid. Artificial Light Its Influence upon Civilization If hydrochloric acid is added to a solution of the sodium salts, the free palmitic and stearic acids are precipitated. An Elementary Study of Chemistry By comparing this with the symbol of the odorless stearic acid, C18H36O2, you will see that all the rank fish oil lacks to make it respectable is eight hydrogen atoms. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries This operation having been accomplished, the piston table is lowered, and the machine is ready to receive the stearic acid. Scientific American Supplement, No. 611, September 17, 1887 If a cooled sample bites the tongue more stearic acid is added until there is a 3% excess of this. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. If the ratio falls below 3.6, stearic acid or resin has been used as the adulterant. Scientific American Supplement, No. 443, June 28, 1884 The first on examination proved to be a mixture of palmitic and stearic acids existing uncombined in the wool oil. Scientific American Supplement, No. 497, July 11, 1885 Also a popular name for stearic acid, used in candles. The Mysterious Island These latter are held in position through the double play of the jaws, B, while the stearic acid is flowing into the upper part of the moulds. Scientific American Supplement, No. 611, September 17, 1887 Approximately N/10 alcoholic sodium hydroxide to fix and control the N/40 stearic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. One or two grammes of stearic acid are added to the alcoholic acetic acid, and the clear supernatant liquid used for the experiments. Scientific American Supplement, No. 392, July 7, 1883 The titer of a fat or oil is really an indication of the amount of stearic acid contained therein. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. This is made by the action of concentrated sulfuric acid upon a solution of oleic acid or stearic acid in an aromatic hydrocarbon. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Thus if a small amount of stearic acid be added to liquid palmitic acid and the solution frozen, the melting point of this solid will be lower than that of palmitic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Second—Control the N/40 stearic acid with the above alkali to obtain its factor, e. g.: Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Likewise the melting point of stearic acid is lowered by the addition of a small amount of palmitic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Both red oil and stearic acid being fatty acids, readily unite with the alkali carbonates, carbon dioxide being formed in the reaction and this method is extensively used in the formation of soap from them. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The red oil, sometimes called saponified red oil, is often semi-solid, resembling a soft tallow, due to the presence of stearic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. These latter acids are usually separated by distillation, combined with the press cake further purified and sold as stearic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Should the fatty acids not readily congeal a weighed amount of dried bleached bees-wax or stearic acid may be added to the hot mixture. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The quality of stearic acid is best judged by the melting point, since the presence of any oleic acid lowers this. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. To make this, first melt the stearic acid as already directed. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Theoretically it should be a simple matter to introduce two atoms of hydrogen into oleic acid or olein, and by this mere addition convert liquid oleic acid and olein into solid stearic acid and stearine. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. |
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