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Hydrogen hazard data

Students should not be using hydrogen cylinders, but may have generated the gas in a chemical reaction. Oxygen-hydrogen mixtures are particularly explosive and should not be ignited, particularly in glass apparatus. Small amounts of hydrogen in a test tube can be ignited as the basis of the test for hydrogen. Wear eye protection. Do not breathe the gas in.

A hydrogen gas cylinder

Highly flammabe hazard warning

Hydrogen is EXTREMELY FLAMMABLE

Dangerous with: Oxygen, chlorine. Explosions can occur.

Nitrogen dioxide. May ignite spontaneously.

Disposal: Hydrogen gas will dissipate rapidly in the atmosphere.


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