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olefine

/ ˈɒl-; ˈəʊlɪˌfiːn; -fɪn /

noun

  1. other names for alkene
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • ˌoleˈfinic, adjective
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Word History and Origins

Origin of olefine1

C19: from French oléfiant, ultimately from Latin oleum oil + facere to make
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Example Sentences

The olefines—ethylene, &c.—are generally absorbed by a very strong sulphuric acid prepared by adding sulphur trioxide to sulphuric acid to form a mixture which solidifies when slightly cooled.

The esters of the higher fatty acids, when distilled under atmospheric pressure, are decomposed, and yield an olefine and a fatty acid.

Others of the olefines are present in minute quantities.

The temperature must be above 18�; and the absorption is prevented by ammonia, olefines, alcohol, and some other substances.

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