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单词 butene
释义

butenen.

Brit. /ˈbjuːtiːn/, U.S. /ˈbjuˌtin/
Origin: Formed within English, by compounding. Etymons: butyric adj., butyl n., -ene comb. form.
Etymology: < but- (in either butyric adj. or butyl n.) + -ene comb. form.
Chemistry.
Each of four isomeric gaseous alkenes, having the general formula C4H8, which are used as reagents in chemical synthesis, esp. in the production of polymers; also called butylene.The isomers of butene are: 1-butene or but-1-ene (CH2=CHCH2CH3); 2-butene or but-2-ene (cis and trans isomers) (CH3CH=CHCH3); and iso-butene (2-methyl-prop-1-ene) (CH3CH2CH=CH2).The identity of the substance referred to in quot. 1851 is not certain.
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > other hydrocarbons
marsh butterc1450
asphaltene1837
petrolene1837
retinol1837
melene1848
butene1851
peucyl1857
nicotyl1860
bog-butter1863
melissene1867
bitumene1868
tolene1868
valylene1868
thallene1872
melissylene1884
allylene1889
dicyclopentadiene1904
kerogen1906
perylene1910
oestrane1933
dodecahedrane1964
prismane1964
the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > straight-chained, by number of carbon atoms > four
butene1851
tetrylene1857
butylene1877
1851 Q. Jrnl. Chem. Soc. 3 126 C8H10. Marsh-gas of valeric acid, (Butene).
1877 H. Watts Fownes's Man. Elem. Chem. II. 57 Butene or Butylene—of this hydro-carbon there are three modifications..Normal butene, Pseudobutene, Isobutene.
1934 Science New Ser. 19 Jan. 46/1 The dehydration of a nonyl alcohol..gave instead a pentene (trimethylethylene) and a butene (isobutylene).
1992 Sci. Amer. Apr. 87/2 (caption) Two solid acid catalysts..have pores that are similar in size to the diameter of two isomers of butene: 2-methylpropene (green and white), which is commercially valuable, and 1-butene..which is less so.
2014 Accts. Chem Res. 47 2617/2 The excess of butenes allows them to bond preferentially to the metal sites over 1,3-butadiene.
This entry has been updated (OED Third Edition, September 2018; most recently modified version published online December 2021).
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n.1851
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