Methane |  |  |
General: | |
Molecular formula | CH4 |
Main hazard | Extremely flammable (F+) |
Autoignition temperature | 537 C |
Explosion limits | 5 – 15% |
Appearance | Colourless gas |
Molar mass | 16,0425 g/mol |
Properties: | |
Density | 0,717 g/L (lighter than air) |
Solubility in water | 3,5 mg/100 mL |
Melting point | -182,5 C (90,6 K) |
Boiling point | -161,6 C (111,55 K) |
Health: | |
 | 4 – Deadly |
3 – Extreme danger |
2 – Hazardous |
1 – Slightly hazardous |
0 – Normal materials |
Fire: | |
 | 4 – Very Flammable |
3 – Readily Ignitable |
2 – Ignited with heat |
1 – Combustible |
0 – Will not burn |
Reactivity: | |
 | 4 – May detonate |
3 – Shock & heat may detonate |
2 – Violent chemical change |
1 – Unstable if heated |
0 – Stable |
Specific Hazard: | |
 | OXE – Oxidizer |
ACID – Acid |
ALK – Alkali |
COR – Corrosive |
W – Use no water |