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A feebly basic solid, C4H4N2, obtained by distilling piperazine with zinc dust, and in other ways. Also, by extension, any of various derivatives of the same.

A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaïn…

Pertaining to, and designating, a substance (acetone) obtained by the distillation of the acetates. It is now called also pyroacetic ether, and formerly was called pyroacetic spirit.

)2, of the phenol series, found in various plants; -- so called because first obtained by distillation of gum catechu. Called also catechol, oxyphenol. etc.

Pertaining to, or designating, any one of three acids obtained by the distillation of citric acid, and called respectively citraconic, itaconic, and mesaconic acid.

A yellow crystalline substance allied to pyrrol, obtained by the distillation of gelatin.

A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also pyrogallic acid. It is a strong reducer, and is used as a developer in photography and in the production of certain dyes.

Pertaining to, or designating, the acid liquid obtained in the distillation of wood, consisting essentially of impure acetic acid.

o, derived from, or designating, an acid obtained as a white crystalline substance by the distillation of mucic acid, or by the oxidation of furfurol.

Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration.

Pertaining to, or designating, an acid obtained as a white crystalline substance by the distillation of tartaric acid.

Derived from wood by distillation; -- formerly used in designating crude wood spirit.

A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with…

n acid (called also pyroracemic acid) obtained, as a liquid having a pungent odor, by the distillation of racemic acid.

A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type. [W…

A kind of ardent spirits used in southern Europe and the East, distilled from grape juice, grain, etc.

Not distilled; as, raw water. [Obs.] Bacon.

ected with an alembic, a retort, or the like, for receiving and condensing the product of distillation.

That which rectifies or refines; esp., a part of a distilling apparatus in which the more volatile portions are separated from the less volatile by the process of evaporation and condensation; a rectifier.

To refine or purify by repeated distillation or sublimation, by which the fine parts of a substance are separated from the grosser; as, to rectify spirit of wine.