“triacetin”的英文意思_释义_用法

单词

triacetin

释义

triacetin Chem.|traɪˈæsɪtɪn|
[f. tri- 5 a + acetic + -in¹ (the termination of the compound ethers of glycerin: see acetin).]
Glyceryl triacetate, C₃H₅(OC₂H₃O)₃, the compound ether or ester of glycerin or glycerol, C₃H₅(OH)₃, and acetic acid, C₂H₄O₂, the three H atoms of the OH groups in glycerol being replaced by three acetyl groups, C₂H₃O; also called acetic triglyceride; a colourless liquid boiling at 258–259°C.; it is found in the oil of the seeds of the spindle-tree.
1858Fownes Elem. Chem. (ed. 7) 504 Berthelot has pointed out three classes of compounds which glycerin is capable of forming... With acetic acid, for instance, it forms three combinations..monacetin, diacetin, and triacetin.

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