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A four carbon saturated alkane hydrocarbon. Butane occurs naturally in Petroleum. It is used in high performance liquid fuels for household and industrial purposes. Butane is also used as a propellant in aerosols and as a raw material for synthetic polymers.

Synonyms and Related Terms

n-butane; butyl hydride; liquified gas


  • Inhalation may cause narcosis or asphyxiation.
  • Burns readily in oxygen
  • Airgas: SDS

Physical and Chemical Properties

Composition CH3CH2CH2CH3
CAS 106-97-8
Melting Point -138.33 C
Molecular Weight mol. wt. = 58.1
Boiling Point -0.5 C

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 595
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998