A colorless gas with a faint petroleum-like odor.Propane is a three-carbon alkane, the third member of the paraffin series following methane and ethane. It is isolated in substantial amounts from natural gas, light crude oil, and oil-refinery gasses and is commercially available as liquefied propane or as a major constituent of liquefied petroleum gas (LPG).

Appearance Colorless gas
Steam pressure 6.536mmHg (20 ℃)
Specific gravity 0.5853 (-45 ℃)
Vapor density 1.55
Solubility (water) 62.4 mg/l (25℃)
Molecular weight 44.11
Boiling point -42 ℃ (-44℉)
Flash point -105 ℃ (-157 ℉)
Melting point -190 ℃
Natural ignition point 450 ℃ (842 ℉)

RESIDENTIAL – dryers and indoor lighting, barbecues, pool heaters, generators and portable heaters as well as lawn maintenance equipment.
INDUSTRIAL – Commercial-grade propane furnaces and water heaters, portable power generators, remote camp heating, cooking and refrigeration and pipeline testing equipment.
CONSTRUCTION – propane-powered construction heaters
AGRICULTURE – crop drying, chemical-free pest and weed control and heating commercial greenhouses
TRANSPORTATION – LPG (liquefied petroleum gas)
PETROCHEMICAL INDUSTRY – plastics products

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