74-82-8

74-82-8 structure
74-82-8 structure

Name methane
Synonyms EINECS 200-812-7
methane
MFCD00008279
Density 0.716 g/mL at 25 °C(lit.)
Boiling Point −161 °C(lit.)
Melting Point −183 °C(lit.)
Molecular Formula CH4
Molecular Weight 16.04250
Flash Point -188 ºC
Exact Mass 16.03130
LogP 0.63610
Vapour density 0.55 (vs air)
Stability Stable. Extremely flammable - note low flash point; mixtures with air constitute an explosion hazard. Reacts violently with interhalogens. Incompatible with strong oxidizing agents, halogens, interhalogens, oxygen.
Symbol GHS02 GHS04
GHS02, GHS04
Signal Word Danger
Hazard Statements H220-H280
Precautionary Statements P210-P377-P381-P410 + P403
Personal Protective Equipment Eyeshields;Faceshields;Gloves;half-mask respirator (US);multi-purpose combination respirator cartridge (US)
Hazard Codes F+
Risk Phrases 12
Safety Phrases 9-16-33
RIDADR UN 1971 2.1
WGK Germany -
RTECS PA1490000
Precursor  1

DownStream  2