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(Chemistry) chem a gas that is an isomer of butylene and which is used in the manufacture of butyl rubber. Formula: (CH3)2C=CH2


(ˌaɪ səˈbyut lˌin)

a colorless, very volatile liquid or flammable gas, C4H8, used chiefly in the manufacture of butyl rubber.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.isobutylene - used also in making gasoline components
butene, butylene - any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
butyl - a hydrocarbon radical (C4H9)
References in periodicals archive ?
That plan, which revealed that the facility held 85,000 pounds of the flammable substance 2 methylpropene and 66,000 pounds of toxic sulfur dioxide, cited a 2013 hazard analysis that (http://blogs.