GAH (Gaseous Hydrogen)
Properties
Burns with a colorless invisible flame.
| Parameter | Unit | Quantity / Description |
|---|
| Molecular weight | g/mol | 2 |
| Melting point | °C | -259.1 |
| Boiling point | °C | -252.8 |
| Relative density, gas | air = 1 | 0.07 |
| Relative density, liquid | water = 1 | 0.07 |
| CAS number | 1333-74-0 |
| IUPAC name | Hydrogen |
Hazards and safety
Extremely flammable. Burns with an almost invisible flame. A sample asphyxiant. Liquid hydrogen and cold gaseous hydrogen can cause freeze burns.
Applications
Mixed with nitrogen to absorb oxygen spots in glass production and in chemical synthesis of ammonia, hydrogen chloride and methanol.
Storage and handling
Extremely flammable. Use only in well ventilated areas. Take precautionary measures against static discharges. Do not use near welding operations, flames or hot surfaces. It is sensitive to ignition by electrostatic discharge. Minimum ignition energy is about one tenth that of other gases such as methane and propane. Keep the container in a well ventilated place. Keep away from heat. Keep away from sources of ignition – No smoking. Cylinders should be stored in the vertical position and properly secured to avoid toppling.
Packaging
Gaseous Hydrogen is supplied through pipeline.