请输入您要查询的英文单词:

 

单词 pentanol
释义

pentanoln.

Brit. /ˈpɛntənɒl/, U.S. /ˈpɛn(t)əˌnɔl/, /ˈpɛn(t)əˌnɑl/
Origin: Formed within English, by derivation. Etymons: pentane n., -ol suffix.
Etymology: < pentane n. + -ol suffix. Compare slightly earlier methanol n., butanol n.
Chemistry.
Any saturated monohydric alcohol of the formula C5H11OH, of which several isomeric forms exist; spec. (also n-pentanol or 1-pentanol) the primary straight-chain alcohol CH3(CH2)3CH2OH (n-amyl alcohol).
ΘΚΠ
the world > matter > chemistry > organic chemistry > alcohols > [noun] > monohydric alcohols by number of carbon atoms > five
isopentyl alcohol1876
pentanol1923
isoamyl alcohol1970
1899 Jrnl. Chem. Soc. 76 i. 742 2-Chlorocyclo~pentanol, C5H8Cl·OH.
1909 Jrnl. Industr. & Engin. Chem. 1 258/1 Among such [anaesthetics] are benzoyl derivatives of alkyl amino-ethanols and alkyl amino-pentanols.]
1923 Industr. & Engin. Chem. 15 1032/1 (heading) Secondary amyl alcohol, 2-pentanol.
1937 F. C. Whitmore Org. Chem. i. 129 Pentanol-2, made by either of these methods, always contained pentanol-3.
1961 Proc. National Acad. Sci. U.S.A. 47 1981 The final product, purified by ascendent paper chromatography in a 1-pentanol, 1-propanol, water system (40:11:15).
1964 N. G. Clark Mod. Org. Chem. viii. 139 A mixture of higher-boiling alcohols (‘fusel oil’) is obtained as a by-product and forms a useful source of pentanols (amyl alcohols), C5H11·OH.
2000 Proc. National Acad. Sci. U.S.A. 97 10715/1 The structural model predicts that pentanol would have the third best binding energy, only 1.3 kcal/mol less favorable than heptanol.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
<
n.1923
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/11/11 1:30:54