Butene, also known as butylene, is an alkene with the formula C 4 H 8. The word butene may refer to any of the individual compounds. They are colourless gases that are present in crude oil as a minor constituent in quantities that are too small for viable extraction.
Butenes are unsaturated olefinic hydrocarbons existing in four isomers: 1-butene, cis-2-butene, trans-2-butene; and 2-methylpropene . The major part of the butenes is utilized for the production of octanes, which are important constituents of gasoline.
1-Butene (IUPAC name: But-1-ene, also known as 1-butylene) is the organic compound with the formula CH 3 CH 2 CH=CH 2. It is a colorless gas. But-1-ene is an alkene easily condensed to give a colorless liquid. It is classified as a linear alpha-olefin (terminal alkene). [2] It is one of the isomers of butene (butylene). It is a precursor to ...
butene, any of four isomeric compounds belonging to the series of olefinic hydrocarbons. The chemical formula is C 4 H 8. The isomeric forms are 1-butene, cis-2-butene, trans-2-butene, and isobutylene. All four butenes are gases at room temperature and pressure.
中文名:1-丁烯,英文名:1-butene,CAS:106-98-9,化学式:C4H8,分子量:56.11,密度:0.5951,熔点:−185°C(lit.),沸点:−6.3°C(lit.),闪点:80,水溶性:222 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966),蒸汽压:1939 mm Hg ( 21.1 °C),折射率:1.3962,MSDS.
Thermodynamics data from equilibrium studies of positional and geometrical isomerization of 1-butene and 2-butene, J. Am. Chem. Soc., 1964, 86, 5416-5420. [ all data ] Levanova and Andreevskii, 1964
, The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of butene-1. The zero point entropy of the glass. The entropy of the gas from molecular data, J. Am. Chem. Soc., 1946, 68, 52-57.