Illuminating Gas


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illuminating gas

[ə′lü·mə‚nād·iŋ ‚gas]
(materials)
Flammable mixture of gases suitable for illuminating purposes; contains hydrogen, methane, ethane, carbon monoxide, and some nitrogen and oxygen.

Illuminating Gas

 

a mixture of combustible gases, primarily methane and hydrogen, that is formed during the thermal processing of coal—for example, during such heat-producing processes as coking and low-temperature carbonization. Until the 1920’s illuminating gas was used for lighting houses and streets.