| 单词 | acetic anhydride |
| 例句 | A vacuum is created and then flooded with a liquid called acetic anhydride - effectively industrial vinegar - which is sucked into the spaces in the wood. Rice house 2011-05-06T10:19:08Z Then add anhydrous sodium acetate and acetic anhydride in the usual amounts and proceed as described in the regular analysis. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Jute reacts with nitric acid in presence of sulphuric acid to form nitrates; and with acetic anhydride to form low acetates. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" It cannot be converted into coumarin by heating alone, but it is readily transformed on heating with acetic anhydride or acetyl chloride. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" This compound, soluble in acetic anhydride, was boiled with it for six hours after adding fused sodium acetate, and the product separated by pouring into water. Researches on Cellulose 1895-1900 It is heated to start the reaction, and when it is complete the resins, residual acetic anhydride and acetic acid are wicked away from the wood, and the pine has become Accoya. Rice house 2011-05-06T10:19:08Z Add about 3 grams of the anhydrous sodium acetate, then 7.5 cc. of the acetic anhydride, and connect the flask with an upright Liebig condenser. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Cellulose reacts directly with acetic anhydride to form low esters; in the presence of sulphuric acid the reaction proceeds to higher limits; the triacetate is soluble in chloroform. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" When treated under pressure with three times its weight of acetic anhydride at 130-140° it dissolves perfectly. Scientific American Supplement, No. 455, September 20, 1884 If a rubber stopper is used it should have had a preliminary treatment with hot acetic anhydride vapor. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. |
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