Butane
CAS 106-97-8C4H1058.12 g/mol
Butane is a straight chain alkane composed of 4 carbon atoms. It has a role as a food propellant and a refrigerant. It is a gas molecular entity and an alkane.
IUPAC: butane
PubChem
Physical & Chemical Properties
| Melting Point | -217.1 °F (NTP, 1992) |
| Boiling Point | 31.1 °F at 760 mmHg (NTP, 1992) |
| Density | 0.6 at 32 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | 61 mg/L at 68 °F (NTP, 1992) |
| Flash Point | -76 °F (NTP, 1992) |
| Vapor Pressure | 760 mmHg at 31.1 °F ; 1823 mmHg at 77 °F (NTP, 1992) |
| Appearance | Butane is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. It is easily ignited. Its vapors are heavier than air. Any leak can be either liquid or vapor. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used as a fuel, an aerosol propellant, in cigarette lighters, and to make other chemicals. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2901
Data: UN Comtrade
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