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olefin
(redirected from olefines)

   Also found in: Dictionary/thesaurus, Medical, Hutchinson 0.46 sec.
olefin (ō`ləfĭn) or olefin series: see alkene alkene (ăl`kēn), any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon double bonds (see
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olefin

 or alkene

Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double bond (see covalent bond, saturation). Olefins may be classified by whether the double bond is in a ring (cyclic) or a chain (acyclic, or aliphatic) or by the number of double bonds (monoolefin, diolefin, etc.). Rare in nature, olefins are obtained by the cracking of petroleum fractions at high temperatures. The simplest ones (ethylene, propylene, butylene, butadiene, and isoprene) are the basis of the petrochemicals industry. They react by adding other chemical agents at the double bond to form derivatives or polymers.



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EIL"), has reached an agreement, in principle, with Carmel Olefines Ltd.
 
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