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An apparatus for receiving and condensing the volatile products of distillation to a liquid or solid form, by cooling.

A colorless, volatile, pungent liquid, C4H6, produced artificially, and regarded as an unsaturated hydrocarbon of the acetylene series, and analogous to crotonic acid.

A highly volatile liquid, condensed by cold and pressure from the first products of the distillation of petroleum; -- used for producing low temperatures.

A volatile, pungent, liquid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series.

ffrutescent, D. Fraxinella (the only species), with strong perfume and showy flowers. The volatile oil of the leaves is highly inflammable.

A colorless, volatile, alkaline liquid, NH(C2H5)2, having a strong fishy odor resembling that of herring or sardines. Cf. Methylamine.

A pungent, mobile, volatile liquid, C6H6, produced artificially from certain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl.

ks up into simpler constituents; -- said particularly of the action of heat on gaseous or volatile substances; as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia.

The separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization;…

l, Dutch metal, brass foil, and bronze leaf. -- Dutch liquid (Chem.), a thin, colorless, volatile liquid, C2H4Cl2, of a sweetish taste and a pleasant ethereal odor, produced by the union of chlorine and ethylene or olefiant gas; -- called also Dutch oil. It is so called because discovered (in 1795) by an association o…

The more liquid or volatile portion of certain oily substance, as distinguished from stearoptene, the more solid parts. [Written also elaoptene.]

ts, as fixed oils or fats, to the exhalations of the flowers. It is used for plants whose volatile oils are too delicate to be separated by distillation.

and refined from grosser matter; or, more strictly, the solution in spirits of wine of a volatile or essential oil; as, the essence of mint, and the like. The . . . word essence . . . scarcely underwent a more complete transformation when from being the abstract of the verb "to be," it came to denote something suffici…

ever (Med.), one that is not dependent on another. -- Essential oils (Chem.), a class of volatile oils, extracted from plants, fruits, or flowers, having each its characteristic odor, and hot burning taste. They are used in essences, perfumery, etc., and include many varieties of compounds; as lemon oil is a terpene,…

A light, volatile, mobile, inflammable liquid, (C2H5)2O, of a characteristic aromatic odor, obtained by the distillation of alcohol with sulphuric acid, and hence called also sulphuric ether. It is powerful solvent of fats, resins, and pyroxylin, but finds its chief use as an anæsthetic. Called also ethyl oxide.ethyl e…

A colorless, mobile, inflammable liquid, C2H5.NH2, very volatile and with an ammoniacal odor. It is a strong base, and is a derivative of ammonia. Called also ethyl carbamine, and amido ethane.

A volatile, terpenelike oil extracted from the eucalyptus, and consisting largely of cymene.

Emission of volatile matter; exhalation. The true cause of cold is an expiration from the globe of the earth. Bacon.

Breathing out air from the lungs; emitting fluid or volatile matter; exhaling; breathing the last breath; dying; ending; terminating.

fluid; fermentation. [R.] Down to the lowest lees the ferment ran. Thomson. ferment oils, volatile oils produced by the fermentation of plants, and not originally contained in them. These were the quintessences of the alchenists. Ure.