1-Butene (
IUPAC
The International Union of Pure and Applied Chemistry (IUPAC ) is an international federation of National Adhering Organizations working for the advancement of the chemical sciences, especially by developing nomenclature and terminology. It is ...
name: But-1-ene, also known as 1-butylene) is the
organic compound
Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon. For example, carbon-co ...
with the formula CH
3CH
2CH=CH
2. It is a colorless gas, but easily condensed to give a colorless liquid. It is classified as a linear
alpha-olefin (terminal
alkene). It is one of the
isomers of
butene (butylene). It is a precursor to diverse products.
Reactions
Polymerization of 1-butene gives
polybutylene, which is used to make piping for domestic plumbing. Another application is as a
comonomer in the production of certain kinds of polyethylene, such as
linear low-density polyethylene (LLDPE).
It has also been used as a precursor to polypropylene resins,
butylene oxide, and
butanone.
Manufacturing
1-Butene is produced by separation from crude C
4 refinery streams and by
ethylene dimerization. The former affords a mixture of 1-and
2-butenes, while the latter affords only the terminal alkene. It is distilled to give a very high purity product. An estimated 12 billion kilograms were produced in 2011.
References
{{DEFAULTSORT:Butene, 1-
Alkenes
es:Buteno#El 1-buteno