Hydrogen gas

CAS No.: 1333-74-0
Formula: H2
Exact Mass: 2.01565
Molecular Weight: 2.01588
PSA: 0.00000
LogP: 0.00000
Appearance & Physical State:Colorless and odorless gas
Melting Point:-259ºC
Boiling Point:-253ºC
Refractive Index:1.98
Water Solubility:0.00017 g/100 mL
Stability:Stable. Highly flammable. Readily forms explosive mixtures with air. Upper (U.K.) composition limit for use of a nitrogen/hydrogen mixture in the open lab is 5.7% hydrogen.
Storage Condition:Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Vapor Density:0.07 (21 °C, vs air)
Flash Point:
Freezing Point:
Ignition Point:
Vapor Pressure:

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