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naphtha |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Naphtha \Naph"tha\, n. [L. naphtha, Gr ?????, fr.Ar. nafth, nifth.] 1. (Chem.) The complex mixture of volatile, liquid, inflammable hydrocarbons, occurring naturally, and usually called crude petroleum, mineral oil, or rock oil. Specifically: That portion of the distillate obtained in the refinement of petroleum which is intermediate between the lighter gasoline and the heavier benzine, and has a specific gravity of about 0.7, -- used as a solvent for varnishes, as a carburetant, illuminant, etc 2. (Chem.) One of several volatile inflammable liquids obtained by the distillation of certain carbonaceous materials and resembling the naphtha from petroleum; as Boghead naphtha, from Boghead coal (obtained at Boghead, Scotland); crude naphtha, or light oil, from coal tar; wood naphtha, from wood, etc Note: This term was applied by the earlier chemical writers to a number of volatile, strong smelling, inflammable liquids, chiefly belonging to the ethers, as the sulphate, nitrate, or acetate of ethyl. --Watts. {Naphtha vitrioli} [NL., naphtha of vitriol] (Old Chem.), common ethyl ether; -- formerly called {sulphuric ether}. See {Ether}. From WordNet r 1.6 [wn]: naphtha n : any of various volatile flammable liquid hydrocarbon mixtures; used chiefly as solvents
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