好词典

diethyl

UK //daɪˈeθɪl//US //daɪˈeθəl//

词源

源自希腊语前缀 'di-'(意为'二')与 'ethyl'(乙基)的组合,19世纪中期开始用于化学命名。

noun

❶ 指含有两个乙基(C₂H₅)的有机化合物基团,常见于化学命名中,表示分子结构中的两个乙基取代位置。

“Diethyl ether is commonly used as a solvent in laboratories.”

(乙醚常用作实验室中的溶剂。)

“The compound contains a diethyl group attached to the nitrogen atom.”

(该化合物的氮原子上连接着一个二乙基基团。)

同义词:ethylic, ethyl group compound

常见短语

diethyl ether — 指乙醚(C₂H₅OC₂H₅),一种挥发性有机溶剂,曾用作麻醉剂,现多用于实验室。

“Diethyl ether was once widely used as a general anesthetic.”

(乙醚曾广泛用作全身麻醉剂。)

diethyl phthalate — 邻苯二甲酸二乙酯,一种塑化剂,常用于化妆品和塑料制品中增加柔韧性。

“Diethyl phthalate is often added to perfumes to help dissolve fragrances.”

(邻苯二甲酸二乙酯常被添加到香水中帮助溶解香料。)