1-Butene
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| Names | |||
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| Preferred IUPAC name
But-1-ene[1] | |||
| Other names
Ethylethylene
1-Butylene α-Butylene | |||
| Identifiers | |||
3D model (JSmol)
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| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.003.137 | ||
PubChem CID
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| UNII | |||
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| Properties | |||
| C4H8 | |||
| Molar mass | 56.11 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 | ||
Refractive index (nD)
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1.3962 | ||
| Viscosity | 7.76 Pa | ||
| Hazards | |||
| NFPA 704 | |||
| 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). | |||
| Infobox references | |||
1-Butene is an organic chemical compound, linear alpha-olefin (alkene),[2] and one of the isomers of butene. The formula is CH3CH2CH=CH2. It is a highly flammable, easily condensed gas.
Reactions[edit]
1-Butene is stable in itself but polymerizes readily to polybutene. Its main 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.[3]
Manufacturing[edit]
1-Butene is produced by separation from crude C4 refinery streams and by ethylene dimerization. The former affords a mixture of 1-and 2-butenes, while the latter affords only the terminal alkene.[4] It is distilled to give a very high-purity product. An estimated 12 billion kilograms were produced in 2011.[5]
See also[edit]
References[edit]
- ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. pp. 17, 61, 374. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
- ^ "1-BUTENE". chemicalland21.com. Retrieved 22 April 2018.
- ^ "1-Butene product overview". shell.com. Archived from the original on 2012-02-10. Retrieved 22 April 2018.
- ^ "Alphabutol process - Big Chemical Encyclopedia". chempedia.info. Retrieved 22 April 2018.
- ^ Geilen, Frank M.A.; Stochniol, Guido; Peitz, Stephan; Schulte-Koerne, Ekkehard (2014). "Butenes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a04_483.pub3.