Definition of isobutane in English:

Share this entry


Pronunciation: /ˌīsəˈbyo͞otān/


A gaseous hydrocarbon isomeric with butane.
  • Chemical formula: CH3CH(CH3)2.
Example sentences
  • And so, Kelley knew just what to do as 128.3 tons of vaporized poisons - including sulfur dioxide, hexane, carbon monoxide, isobutane - began sifting earthward.
  • The end result is the addition of isobutane to isobutylene to form isooctane, the molecule that is the basis of octane ratings seen at the gas pumps.
  • Residents are exposed to photochemical smog, airborne particles, and alkane hydrocarbons (e.g., propane, isobutane, n-butane).

For editors and proofreaders

Syllabification: i·so·bu·tane

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.