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  • Propane is a three-carbon alkane – its molecular formula is C3H8.
  • Propane is an odourless gas to which an odourant has been added to detect leaks.
  • Liquid propane boils (from liquid to vapour) at -44F (-42.2C).
  • At one and a half times the weight of air, propane gas will settle in low areas.
  • In a liquid form, propane is half the weight of water.
  • About 23.5 cubic feet of air is required to burn one cubic foot of propane.