请输入您要查询的英文单词:

 

单词 propenal
释义

propenaln.

Brit. /ˈprəʊpᵻnal/, U.S. /ˈproʊpəˌnæl/
Origin: A borrowing from German. Etymon: German Propenal.
Etymology: < German Propenal (1893 in the passage translated in quot. 1894) < Propen propene n. + -al -al suffix2. Compare French propénal (1896 or earlier).
Chemistry.
= acrolein n.
ΘΚΠ
the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others
acrolein1841
metaldehyde1841
trichlorocetaldehyde1845
valeral1852
toluic aldehyde1857
glyoxal1858
acraldehyde1864
propionic aldehyde1866
lauric aldehyde, ether1868
salicylaldehyde1869
dialdane1876
isovaleraldehyde1883
rhodinal1892
propenal1894
oxaldehyde1895
methylglyoxal1898
hadromal1899
malondialdehyde1904
pyruvic aldehyde1909
trioxan1915
plasmal1925
1894 G. M'Gowan tr. A. Bernthsen Text-bk. Org. Chem. (ed. 2) v. 149 Acrolein [Note ‘O[fficial[ N[ame]’ Propenal [Ger. Propenal]], Acrylic aldehyde, Allyl aldehyde, CH2=CH-CHO, which is produced by the oxidation of allyl alcohol, by the distillation of fats, and by heating glycerine with bisulphate of potash.
1964 J. W. Linnett Electronic Struct. Molecules ix. 150 In propenal, CH2=CH—CHO, excitation lowers the CO characteristic frequency from 1723 to 1266 cm−1.
1988 New Scientist 5 Nov. 49/1 Propenal (CH2CHCHO)..is the main culprit of the red, streaming eyes and fits of coughing we experience when bonfire smoke wafts our way.
2003 Internat. Dairy Jrnl. 14 39 Propenal and 2-methyl ketones were more abundant in 180-d-old cheeses made in autumn.
This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022).
<
n.1894
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:2024/12/24 13:50:53