英語單詞

benzene是什么意思

benzene

英 ['benzi?n] 美 ['b?nzin]

n. [有化] 苯

中文詞源

benzene 苯

來自化學(xué)詞根benz, 苯。

英文詞源

benzene: benzene: [19] The original name given to this hydrocarbon, by the German chemist Eilhardt Mitscherlich in 1833, was benzine. He based it on the term benzoic acid, a derivative of benzoin, the name of a resinous substance exuded by trees of the genus Styrax. This came ultimately from Arabic lubān-jāwī, literally ‘frankincense of Java’ (the trees grow in Southeast Asia).

When the expression was borrowed into the Romance languages, the initial lu- was apprehended as the definite article, and dropped (ironically, since in so many Arabic words which do contain the article al, it has been retained as part and parcel of the word – see ALGEBRA). This produced a variety of forms, including French benjoin, Portuguese beijoim, and Italian benzoi.

English probably acquired the word mainly from French (a supposition supported by the folketymological alteration benjamin which was in common use in English from the end of the 16th century), but took the z from the Italian form. Meanwhile, back with benzine, in the following year, 1834, the German chemist Justus von Liebig proposed the alternative name benzol; and finally, in the 1870s, the chemist A W Hofmann regularized the form to currently accepted chemical nomenclature as benzene.
=> benzol
benzene (n.): 1835, benzine, altered from German Benzin, coined in 1833 by German chemist Eilhardt Mitscherlich (1794-1863) from Benz(oes?ure) "benzoic acid" + -in, indicating "derived from" (see -ine (2)). Mitscherlich obtained it from a distillation of benzoic acid, obtained from benzoin. The form benzene (with hydrocarbon suffix -ene), proposed in 1835, began to be used from 1838 in English, but in mid-19c. it also commonly was called benzol.

雙語例句

1. The benzene case is discussed only in a footnote in Textile Manufacturers.: 苯案僅在“紡織品制造商”一案的腳注中進(jìn)行了討論.

2. The benzene vaporized and formed a huge cloud of gas.: 苯蒸發(fā)了，形成了一大團(tuán)氣體。

3. The simplest member of the aromatics series is benzene.: 芳香烴系列中最簡(jiǎn)單的一個(gè)化合物是苯.

4. The benzene ring is also seen in other compounds.: 苯環(huán)在其他化合物中也可以看見.

5. Resonance theory says that benzene can be represented by two contributors.: 共振論認(rèn)為苯能用兩個(gè)參與體表示.

benzene是什么意思

benzene

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