Propane Properties, Molecular Formula, Applications - WorldOfChemicals
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Propane Properties


Molecule 3D Structure Image
Molecule Structure Image



Propane is a three-carbon alkane, normally a gas, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel for engines, oxy-gas torches, barbecues, portable stoves and residential central heating. A mixture of propane and butane, used mainly as vehicle fuel, is commonly known as liquefied petroleum gas. It may also contain small amounts of propylene and butylene. An odorant such as ethanethiol or thiophene is added so that people can easily smell the gas in case of a leak. It is also used as an aerosol propellant.

Chemical Properties

Appearance Colorless gas
Boiling Point −42.1 °C
CAS Number 74-98-6
Density 1.55 g/ml
EINECS Number 200-827-9
IUPAC Name Propane
InChI 1S/C3H8/c1-3-2/h3H2,1-2H3
Melting Point −187.7 °C
Molar Mass 44.1 g/mol
Molecular Formula C3H8
NFPA 704 H-1,F-4,R-0,C-NA
RTECS Number TX2275000
Solubility 0.04 g/l
Synonyms n-Propane;Normal Propane uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X