A colorless, odorless, flammable gas

Technical Information:
Chemical Symbol: H2
Molecular Weight: 2.02
Specific Volume 192 ft3/lb (11.9 m3/kg)

Shipping Information:
Proper Name: Hydrogen, Compressed
Hazard Class: 2.1
I.D. Number: UN 1049
Labels: Flammable Gas

Grade Purity Impurity Specification
Purity Gr. 6.0 99.9999% Oxygen H2O < 0.2 ppm < 0.8 ppm
Purity Gr.5.0 99.999% Oxygen H2O < 2 ppm < 8 ppm