HYDROGEN H2
General Characteristics
A colorless, flammable, and odorless gas.
Health Hazards
A simple asphyxiant.
Technical Information
Molecular Weight
2.02
Specific Volume
192CF/lb
Fire Potential
4.0 - 75% in Air
TLV-TWA
None established
CGA Valve
350, 3HP-703, 2HP-695
LB
180
Dot Name
Hydrogen Compressed
UN No.
UN1049
Dot Class
2.1
Dot Label
Flammable Gas
Cas Registry
1333-74-0