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The most brilliant of illuminating gases, C2 H2 . It may be produced synthetically from its elements, by incomplete combustion of coal gas, and commercially from calcium carbide, CaC2 . It also may be produced by reaction with water. Used in manufacturing explosives. Formerly used as an illuminating gas in mines and around drill rigs. When combined with oxygen, acetylene burns to produce an intensely hot flame and hence now is used principally in welding and metal-cutting flame torches. Syn: ethyne; ethine. CF: gas Standard, 2; Bennett; Long
Source: Dictionary of Mining, Mineral, and Related Terms

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