: a heavy flammable gaseous alkane C3H8 found in crude petroleum and natural gas and used especially as fuel and in chemical synthesis
Colourless, easily liquefied hydrocarbongas (CH or, more fully, CHCHCH). Separated in large quantities from natural gas, light crude oil, and oil-refinery gases, it is available as liquefied propane or as a major constituent of liquefied petroleum gas (LPG). It is an important raw material for the manufacture of ethylene and for the petrochemical industry. It is also used as a refrigerant, extractant, solvent, aerosol propellant, and fuel for portable cooking appliances, torches, and lighters.