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ex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.

A polymeric modification of cyanogen, obtained as a brown or black amorphous residue by heating mercuric cyanide.

or boiling dilute nitric acid and sulphocyanate of potassium; -- called also pseudosulphocyanogen, perthiocyanogen, and formerly sulphocyanogen.

Same as Persulphocyanogen.

See Persulphocyanogen. [Obs.]

A complex derivative of cyanogen, regarded as an acid, and known chiefly in its salts; -- called also hydromellonic acid.

Pertaining to, or containing, cyanogen.

A compound formed by the union of cyanogen with an element or radical.

A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide.

yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots.…

s a haloid salt; especially, chlorine, bromine, and iodine; sometimes, also, fluorine and cyanogen. See Chlorine family, under Chlorine.

Pertaining to, or derived from the combination of, hydrogen and cyanogen. Hydrocyanic acid (Chem.), a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocya…

pound of hydrocyanic acid with a base; -- distinguished from a cyanide, in which only the cyanogen so combines.

Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen; as, hydroferricyanic acid. See Ferricyanic.

Pertaining to, or containing, or obtained from, hydrogen, ferrous iron, and cyanogen; as, hydroferrocyanic acid. See Ferrocyanic.

A strong nitrogenous base, C3H6N6, produced from several cyanogen compounds, and obtained as a white crystalline substance, -- formerly supposed to be produced by the decomposition of melam. Called also cyanuramide.

A complex nitrogenous hydrocarbon obtained artificially (as by the action of cyanogen chloride on aniline) as a white, crystalline substance; -- called also diphenyl guanidin.

Any one of a series of cyanogen compounds; particularly, one of those cyanides of alcohol radicals which, by boiling with acids or alkalies, produce a carboxyl acid, with the elimination of the nitrogen as ammonia.

A white crystalline nitrogenous substance, obtained indirectly by the action of cyanogen on aniline, and regarded as an anilide of oxamic acid; -- called also phenyl oxamide.

Persulphocyanogen. [R.]