| 单词 | acetic anhydride |
| 释义 | > as lemmasacetic anhydride acetic anhydride n. a colourless pungent liquid used as an acetylating agent, esp. in the production of synthetic fibres and in the conversion of opium to heroin; also called acetic oxide, ethanoic anhydride.Acetic anhydride is the anhydride of acetic acid; (C2H3O)2O. ΚΠ 1866 H. Watts Dict. Chem. IV. 418 Phenyl-acetamide or Acetanilide..Produced by the action of aniline upon acetic anhydride or chloride of acetyl. 1876 Encycl. Brit. V. 571/2 Acetic anhydride is an oily liquid..having a pungent odour. 1959 F. Sondern Brotherhood of Evil App. 239 The common chemical acetic anhydride, which is used in the manufacture and treatment of rayon, is also used in the conversion of raw opium into the morphine base from which heroin is made. 2000 A. Rashid Taliban (2001) 120 Acetic anhydride, a chemical necessary to convert opium into heroin was smuggled into Afghanistan via Central Asia. < as lemmas |
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