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单词 paranaphthalene
释义

paranaphthalenen.

Brit. /ˌparəˈnafθəliːn/, /ˌparəˈnapθəliːn/, U.S. /ˌpɛrəˈnæpθəˌlin/, /ˌpɛrəˈnæfθəˌlin/
Forms: see para- prefix1 and naphthalene n.
Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: para- prefix1, naphthalene n.
Etymology: < para- prefix1 + naphthalene n., after French paranaphtaline (J. Dumas 1832, in Ann. de chim. et de physique 50 187).
Chemistry. Now historical and rare.
An aromatic hydrocarbon discovered in coal tar, now called anthracene.
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > polynuclear aromatic hydrocarbons
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paranaphthalene1838
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chrysene1864
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acenaphthene1868
naphthoquinone1870
anthracene oil1873
azulene1874
acenaphthylene1875
ionene1894
1838 T. Thomson Chem. Org. Bodies 746 This substance was discovered by M. Dumas in 1832, in coal tar, and named by him paranaphthalin, because from his experiments it appears in its composition to be perfectly identical with naphthalin.
c1865 H. Letheby in J. Wylde Circle of Sci. I. 107/1 Finally, a more solid material, named paranaphthaline, distils over.
1874 Index Jrnl. Chem. Soc. 208/2 Paranaphthalene, constitution of.
1993 Chem. Rev. 93 164/1 Fritzsche..was aware of ‘paranaphthaline’, melting around 180°C, which Dumas and Laurent in 1832 had isolated from coal tar.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1838
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