butadiene

The Columbia Encyclopedia, 6th ed. | 2011 | 639 words | Copyright

butadiene , colorless, gaseous hydrocarbon. There are two structural isomers of butadiene; they differ in the location of the two carbon-carbon double bonds in the butadiene molecule. One (1,2-butadiene) has the formula CH ₂ :C:CHCH ₃ . The other (1,3-butadiene), often called simply butadiene, has the formula CH ₂ :CHCH:CH ₂ ; it is used in the manufacture of synthetic rubber, latex paints, and nylon and is obtained chiefly by dehydrogenation of butane and butene obtained by cracking petroleum. Chloroprene and isoprene are the 2-chloro- and 2-methyl-derivatives of 1,3-butadiene; they also are used in the synthesis of rubber.

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