(Chemical symbol: C3Hs). A colorless, liquefied petroleum fuel gas which is shipped in tank cars, stored in large tanks under pressure, and is available in small tanks under pressure for shop use and as a cooking gas. Small self-contained propane torch sets are available for home workshop use and incidental heating operations.
Propane is used for many purposes, among them to fuel heat treating furnaces, core baking ovens, soft metal melting, unit heaters for industrial buildings, gas fired refrigerators, automatic steam boilers and brazing torches.
