Hydrogen
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Hydrogen - H is a colourless, odorless, tasteless and highly flammable gas. It can easily be obtained by electrolysis of water.
Because of the small molecule size it can some times escape rapidly from containers that does not leak water or other gasses. In some cases it can diffuse through metal.
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Useful properties
- Low density, 0.08988 g/L
- High speed of sound, 1310 m/s (27 °C)
- High thermal conductivity, 180.5 mW·m−1·K−1
