Oxyhydrogen
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Oxyhydrogen is an explosive mixture of hydrogen and oxygen. Especially in biology, it is also called by its German name knallgas (= "bang gas").
It can be produced by water electrolysis, for example in the water torch.
When ignited, oxyhydrogen changes explosively to water, making 4,116 calories of heat for each gram of hydrogen burned: that is 286 kJ/mol of enthalpy.
Oxyhydrogen explosions can be a hazard where hydrogen is produced unintentionally, for example in large lead-acid batteries.
[edit] See also
- Oxy-fuel welding and cutting for controlled burning of oxygen and hydrogen in a torch, for cutting and welding etc.
- Oxyhydrogen flame
- Knallgas-bacteria
This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.
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