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NAPHTHA

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Originally appearing in Volume V19, Page 167 of the 1911 Encyclopedia Britannica.
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NAPHTHA , a word originally applied to the more fluid kinds of See also:

petroleum, issuing from the ground in the See also:Baku See also:district of See also:Russia and in See also:Persia. It is the va4Ba of Dioscorides, and the naphtha, or See also:bitumen liquidum candidum of See also:Pliny. By the alchemists the word was used principally to distinguish various highly volatile, See also:mobile and inflammable liquids, such as the See also:ethers, sulphuric See also:ether and acetic ether having been known respectively as naphtha sulphurici and naphtha aceti. The See also:term is now seldom used, either in See also:commerce or in See also:science, without a distinctive prefix, and we thus have the following: I. See also:Coal-See also:tar Naphtha.—A volatile commercial product obtained by the See also:distillation of coal-tar (see COAL-TAR). 2. Shale Naphtha.—Obtained by distillation from the oil produced by the destructive distillation of bituminous shale (see See also:PARAFFIN). 3. Petroleum Naphtha.—A name sometimes given (e.g. in the See also:United States) to a portion of the more volatile See also:hydrocarbons distilled from petroleum (see PETROLEUM). 4. See also:Wood Naphtha.—M See also:ethyl See also:alcohol (q.v.). 5.

See also:

Bone Naphtha.—Known also as bone oil or 'Dippers oil. A volatile product of offensive odour obtained in the carbonization of bones for the manufacture of See also:animal See also:charcoal. 6. Caoutchouc Naphtha.—A volatile product obtained by the destructive distillation of See also:rubber. (B.

End of Article: NAPHTHA

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