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A white crystalline hydrocarbon produced indirectly from retene.

A mixture of volatile hydrocarbons intermediate between gsolene and cymogene. It is obtained in the purification of crude petroleum, and is used as a refregerant.

A liquid hydrocarbon, C10H18, of the acetylene series. It is produced artificially.

(Chem.), any one of a series of alcohols which contain the radical CH.OH united with two hydrocarbon radicals. On oxidation the secondary alcohols form ketones. -- Secondary amputation (Surg.), an amputation for injury, performed after the constitutional effects of the injury have subsided. -- Secondary axis (Opt.),…

A hydrocarbon (C13H10) obtained in white fluorescent crystals, in the distillation products of the needles of the California "big tree" (Sequoia gigantea).

ics, etc. It consists essentially of ethereal salts of palmitic acid with ethal and other hydrocarbon bases. The substance of spermaceti after the removal of certain impurities is sometimes called cetin. Spermaceti whale (Zoöl.), the sperm whale.

A hydrocarbon, C14H12, produced artificially in large, fine crystals; -- called also diphenyl ethylene, toluylene, etc.

An unsaturated hydrocarbon, C8H8, obtained by the distillation of storax, by the decomposition of cinnamic acid, and by the condensation of acetylene, as a fragrant, aromatic, mobile liquid; -- called also phenyl ethylene, vinyl benzene, styrol, styrene, and cinnamene.

Any one of a series of basic compounds which consist essentially of sulphur united with hydrocarbon radicals. In general they are oily or crystalline deliquescent substances having a peculiar odor; as, trimethyl sulphine, (CH3)3S.OH. Cf. Sulphonium.

compounds analogous to the ketones, and consisting of the sulphuryl group united with two hydrocarbon radicals; as, dimethyl sulphone, (CH.SO

phurous anhydride, and formerly sulphurous acid. -- Sulphur ether (Chem.), a sulphide of hydrocarbon radicals, formed like the ordinary ethers, which are oxides, but with sulphur in the place of oxygen. -- Sulphur salt (Chem.), a salt of a sulphacid; a sulphosalt. -- Sulphur showers, showers of yellow pollen, resemb…

A liquid hydrocarbon obtained together with furfuran (tetrol) by the distillation of pine wood; -- called also methyl tetrol, or methyl furfuran.

Any one of a series of isomeric hydrocarbons of pleasant aromatic odor, occurring especially in coniferous plants and represented by oil of turpentine, but including also certain hydrocarbons found in some essential oils.

A light oily hydrocarbon, C14H30, of the marsh-gas series; -- so called from the fourteen carbon atoms in the molecule.

A hydrocarbon, C24H50, resembling paraffin, and like it belonging to the marsh-gas series; -- so called from having twenty- four atoms of carbon in the molecule.

A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives.

A hypothetical hydrocarbon, C4H4, analogous to benzene; -- so called from the four carbon atoms in the molecule. Tetrol phenol, furfuran. [Obs.]

A hydrocarbon obtained from coal-tar residues, and remarkable for its intense yellowish green fluorescence.

A sulphur hydrocarbon, C4H4S, analogous to furfuran and benzene, and acting as the base of a large number of substances which closely resemble the corresponding aromatic derivatives.

A hydrocarbon, C14H10, related both to the acetylene and the aromatic series, and produced artificially as a white crystalline substance; -- called also diphenyl acetylene.