olefine

/ ˈɒl-, ˈəʊlɪˌfiːn, -fɪn /

noun

1. other names for alkene

Other Word Forms

• olefinic adjective

Word History and Origins

Origin of olefine¹

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

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.

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

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Others of the olefines are present in minute quantities.

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

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