Physical Properties : Form : colourless, odourless gas
Melting point : -182 C
Boiling point : -164 C
Water solubility : slight
Density : 0.717 g/l at 20 C
Explosion limits : 5 - 15%
Principal Hazards : Methane is very flammable. Mixtures of methane with air are explosive within
the range 5-15% by volume of methane.
Methane can react violently or explosively with strong oxidizing agents, such as oxygen, halogens or interhalogen compounds.
At high concentration methane acts as an asphyxiant.
At high concentration methane acts as an asphyxiant.
Toxicological Properties :
* Methane is inactive biologically and essentially nontoxic; therefore, the majority is the
exclusion of an adequate supply of oxygen to the lungs.
* Methane is not listed in the IARC, NTP or by OSHA as a carcinogen or potential
carcinogen.
Reactivity Data : Stability : Stable
Incompatibility (Materials to Avoid) : Oxidizers
Hazardous Decomposition Products : None
Hazardous Polymerization : Will not occur
Conditions to Avoid : None
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