英语词汇“acetin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

acetin

/əˈsiːtɪn/ /əˈsɛtɪn/ /ˈasɪtɪn/

Chemistry

noun

Any of five acetates of glycerol, which are thick oily liquids used as solvents and plasticizers; specifically = monoacetin. Compare also diacetin, triacetin.

Glycerol may undergo substitution of one, two, or all of its alcoholic hydrogen atoms, giving two possible monoacetates, two diacetates, and one triacetate.Commercial acetins are mixtures of the various acetates. Monoacetin contains chiefly the 1-acetate; CH₂OH·CHOH·CH₂OOCH₃. Diacetin is chiefly the 1,3-diacetate; CH₃COOCH₂·CHOH·CH₂OOCCH₃..

Origin

Mid 19th century; earliest use found in Quarterly Journal of the Chemical Society. From French acétine from acét- (in acétique) + -ine, after glycérine glycerine.

单词	acetin
释义	acetin /əˈsiːtɪn/ /əˈsɛtɪn/ /ˈasɪtɪn/ Chemistry noun Any of five acetates of glycerol, which are thick oily liquids used as solvents and plasticizers; specifically = monoacetin. Compare also diacetin, triacetin. Glycerol may undergo substitution of one, two, or all of its alcoholic hydrogen atoms, giving two possible monoacetates, two diacetates, and one triacetate.Commercial acetins are mixtures of the various acetates. Monoacetin contains chiefly the 1-acetate; CH₂OH·CHOH·CH₂OOCH₃. Diacetin is chiefly the 1,3-diacetate; CH₃COOCH₂·CHOH·CH₂OOCCH₃.. Origin Mid 19th century; earliest use found in Quarterly Journal of the Chemical Society. From French acétine from acét- (in acétique) + -ine, after glycérine glycerine.
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