coal gas(redirected from Hygas)
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Related to Hygas: coal gas
coal gas(kōl gas)
A synthetic gas produced from coal and used for heating and in the production of methanol and ammonia; contains carbon monoxide, carbon dioxide, and hydrogen; can cause death through asphyxiation as well as fire and explosion.
A flammable, explosive, toxic gas produced from the distillation of coal. It is used for heating and lighting. Its principal constituents are methane, carbon monoxide, and hydrogen.
See also: gas