释义 |
isobutene
isobutene (ˌaɪsəʊˈbjuːtiːn) n (Chemistry) chem a chemical used in manufacturing butyl rubber. Formula: (CH3)2C=CH2 Isobutene
isobutene[¦ī·sō′byü‚tēn] (organic chemistry) isobutylene Isobutene isobutylene, the unsaturated hydrocarbon (CH3)2C=CH2, a colorless gas. Boiling point, — 6.9°C; density, 0.6266 g/cm3 (at -6.6°C); 1.3814. Isobutene is made industrially by dehydrogenating isobutane over oxide catalysts (forexample, Cr203 on A1203) at 500°-600°C or by dehydrating isobutyl alcohol. The ability of isobutene to polymerize and copolymerize is used in industry in making polyisobutene and butyl rubber. Isobutene is also used to alkylate aromatic compounds and isobutane in making isooctane. ThesaurusSeeisobutylene |