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[ahy-suh-byoo-teyn, -byoo-teyn] /ˌaɪ səˈbyu teɪn, -byuˈteɪn/
noun, Chemistry
a colorless, flammable gas, C 4 H 10 , used as a fuel, as a refrigerant, and in the manufacture of gasoline by alkylation.
Origin of isobutane
1875-80; iso- + butane Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for isobutane
  • The isobutane vaporizes at high pressures to drive a turbine.
  • isobutane was not acutely toxic via the inhalation route and was basically non-irritating to the skin and eyes of rabbits.
  • The isobutane is recycled back into the reactor as feed.
  • For each run, a pre-blended feed of olefins and isobutane was introduced to the reactor.

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