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单词 octadecane
释义

octadecanen.

Brit. /ˌɒktəˈdɛkeɪn/, U.S. /ˌɑktəˈdɛkeɪn/
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: octa- comb. form, decane n.
Etymology: < octa- comb. form + decane n., after German Octadecan (F. Krafft 1882, in Berichte der Deutsch. Chem. Ges. 15 1703; now usually Oktadekan).
Chemistry.
Any of the series of saturated hydrocarbons (alkanes) having the formula C18H38; spec. (also n-octadecane) the unbranched isomer CH3(CH2)16CH3.
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > straight-chained by number of carbon atoms
octadecane1882
1882 Jrnl. Chem. Soc. 42 1272 The higher hydrocarbons exhibit the following properties:..Octadecane from stearic acid, m.p. 28°; b.p. 317°.
1906 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. IV. 632/1 n-Octadecane, C18H38... Occurs in paraffin from brown coal.
1933 Jrnl. Chem. Soc. 347 It appears that a third form of octadecane has been detected.
1997 Proc. National Acad. Sci. U.S.A. 95 9867/2 Biological activity was located on a peak eluting at 10.7 min, relative to heptadecane at 9.2 min. and octadecane at 13.8 min.
This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022).
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n.1882
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