出典:Wiktionary
isobutane (countable かつ uncountable, 複数形 isobutanes)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/05 17:03 UTC 版)
Isobutane, also known as methylpropane, is an isomer of butane. It is the simplest alkane with a tertiary carbon. 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. Some portable camp stoves use a mixture of isobutane with propane, usually 80:20. Isobutane is used as a feedstock in the petrochemical industry, for example in the synthesis of isooctane.
Its UN number (for hazardous substances see shipping) is UN 1969. Isobutane is the R group for the amino acid leucine.