What is a liquid hydrocarbon, C8H18, of the marsh-gas series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane called?

dibutyl — A liquid hydrocarbon, C8H18, of the marsh-gas series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane. (Webster's 1913.)

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