Wiktionary
n. (context organic compound English) A hydrocarbon, a particular isomer of C4H10 found in natural gas.
Wikipedia
Isobutane (i-butane), also known as methylpropane, is a chemical compound with molecular formula and 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.
This page provides supplementary chemical data on isobutane.
Usage examples of "isobutane".
He'd doused his cowlick with spray-Rhyme could smell propane, isobutane, and vinyl acetate-but the charming spike still stuck up like Dagwood's.
He’d doused his cowlick with spray—Rhyme could smell propane, isobutane, and vinyl acetate—but the charming spike still stuck up like Dagwood’s.