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coal gas |
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coal gasGas produced when coal is destructively distilled or heated out of contact with the air. Its main constituents are methane, hydrogen, and carbon monoxide. Coal gas has been superseded by natural gas for domestic purposes.
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| It is of vast dimensions, containing more than 40,000 cubic feet of gas ; but as coal gas was employed in place of the more expensive and inconvenient hydrogen, the supporting power of the machine, when fully inflated, and immediately after inflation, is not more than about 2500 pounds. |
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