3D model (JSmol)
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|Molar mass||58.12 g·mol−1|
|Density||2.51 g/l, gas (15 °C, 1 atm);593.4 kg · m-3, liquid|
|Supplementary data page|
|n, εr, etc.|
Solid, liquid, gas
|Spectral data||UV, IR, NMR, MS|
|Except where noted otherwise, data are given for|
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references
Isobutane, also known as methylpropane or 2-methylpropane, is an alkane, isomeric with butane. Recent concerns with depletion of the ozone layer by freon gases have led to increased use of isobutane as a gas for refrigeration systems, especially in domestic refrigerators and freezers, and as a propellant in aerosol sprays. When used as a refrigerant or a propellant, isobutane is also known as R-600a. It is used as a feedstock in the petrochemical industry, for example in the synthesis of isooctane.
Methylpropane is the systematic name. The substituent number (2-) is unnecessary because there is no isomer of this molecule with methylpropane as part of its name.
- Patent Watch, July 31, 2006.
- Panico, R.; & Powell, W. H. (Eds.) (1994). A Guide to IUPAC Nomenclature of Organic Compounds 1993. Oxford: Blackwell Science. ISBN 0-632-03488-2.http://www.acdlabs.com/iupac/nomenclature/93/r93_679.htm
- IUPAC Nomenclature of Organic Chemistry (online version of the "Blue Book")
- Molview from bluerhinos.co.uk See Isobutane in 3D
- Data from Air Liquide