E944 - Propane

Propane -- is a three-carbon alkane with the molecular formula C3H8. It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel. Propane is one of a group of liquefied petroleum gases -LP gases-. The others include butane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. - Wikipedia