1-Butene

Source: Wikipedia, the free encyclopedia.
1-Butene
Names
Preferred IUPAC name
But-1-ene[1]
Other names
Ethylethylene
1-Butylene
α-Butylene
Identifiers
3D model (
JSmol
)
1098262
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard
 100.003.137 Edit this at Wikidata
EC Number
  • 203-449-2
25205
UNII
UN number 1012
  • InChI=1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3 checkY
    Key: VXNZUUAINFGPBY-UHFFFAOYSA-N checkY
  • InChI=1/C4H8/c1-3-4-2/h3H,1,4H2,2H3
    Key: VXNZUUAINFGPBY-UHFFFAOYAZ
  • C=CCC
  • CCC=C
Properties
C4H8
Molar mass 56.108 g·mol−1
Appearance Colorless Gas
Odor slightly aromatic
Density 0.62 g/cm3
Melting point −185.3 °C (−301.5 °F; 87.8 K)
Boiling point −6.47 °C (20.35 °F; 266.68 K)
0.221 g/100 mL
Solubility soluble in alcohol, ether, benzene
1.3962
Viscosity 7.76 Pa
Hazards
GHS labelling:
GHS02: FlammableGHS04: Compressed Gas
Danger
H220, H221, H280
P210, P377, P381, P403, P410+P403
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
4
0
Flash point −79 °C; −110 °F; 194 K
385 °C (725 °F; 658 K)
Explosive limits
 1.6-10%
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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1-Butene (

isomers of butene
(butylene). It is a precursor to diverse products.

Reactions

Polymerization of but-1-ene gives polybutylene, which is used to make piping for domestic plumbing.[3] Another application is as a comonomer in the production of certain kinds of polyethylene, such as linear low-density polyethylene (LLDPE).[4] It has also been used as a precursor to polypropylene resins, butylene oxide, and butanone.[5]

Manufacturing

But-1-ene is produced by separation from crude C4 refinery streams and by

2-butenes, while the latter affords only the terminal alkene.[6] It is distilled to give a very high purity product. An estimated 12 billion kilograms were produced in 2011.[7]

References

  1. ISBN 978-0-85404-182-4
    .
  2. ^ "1-BUTENE". chemicalland21.com. Retrieved 22 April 2018.
  3. ISBN 978-3527306732
    .
  4. doi:10.1016/j.progpolymsci.2008.05.003
    .
  5. ^ "1-Butene product overview". shell.com. Archived from the original on 2012-02-10. Retrieved 22 April 2018.
  6. ^ "Alphabutol process - Big Chemical Encyclopedia". chempedia.info. Archived from the original on 2017-12-08. Retrieved 22 April 2018.
  7. ISBN 978-3527306732
    .
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