Chemical Symbol: H2
CAS Registry Number: 1333-74-0
DOT Class: 2.1
DOT Label: Flammable Gas
UN Number: UN 1049
U.S. Units
SI Units
Chemical formula
H2
H2
Molecular weight
2.02
2.02
Specific volume
192 ft3/lb
Flammability limits
4.0 - 75% in Air
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