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Erythrogen :: Erythrogen (n.) A crystalline substance obtained from diseased bile, which becomes blood-red when acted on by nitric acid or ammonia..

Trimethylamine :: Trimethylamine (n.) A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups..

Purpureo- :: Purpureo- () A combining form signifying of a purple or purple-red color. Specif. (Chem.), used in designating certain brilliant purple-red compounds of cobaltic chloride and ammonia, similar to the roseocobaltic compounds. See Cobaltic..

Phosphine :: Phosphine (n.) A colorless gas, PH3, analogous to ammonia, and having a disagreeable odor resembling that of garlic. Called also hydrogen phosphide, and formerly, phosphureted hydrogen..

Benzamide :: Benzamide (n.) A transparent crystalline substance, C6H5.CO.NH2, obtained by the action of ammonia upon chloride of benzoyl, as also by several other reactions with benzoyl compounds..

Urethane :: Urethane (n.) A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate. It is used somewhat in medicine as a hypnotic. By extension, any one of the series of related substances of which urethane proper is the type..

Ammoniac :: Ammoniac (n.) Alt. of Gum ammonia.

Derivative :: Derivative (n.) A substance so related to another substance by modification or partial substitution as to be regarded as derived from it; thus, the amido compounds are derivatives of ammonia, and the hydrocarbons are derivatives of methane, benzene, etc..

Imesatin :: Imesatin (n.) A dark yellow, crystalline substance, obtained by the action of ammonia on isatin..

Substitution :: Substituted (a.) Containing substitutions or replacements; having been subjected to the process of substitution, or having some of its parts replaced; as, alcohol is a substituted water; methyl amine is a substituted ammonia..

Mascagnite :: Mascagnite (n.) Native sulphate of ammonia, found in volcanic districts; -- so named from Mascagni, who discovered it..

Valeridine :: Valeridine (n.) A base, C10H19N, produced by heating valeric aldehyde with ammonia. It is probably related to the conine alkaloids..

Phospham :: Phospham (n.) An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus..

Sodamide :: Sodamide (n.) A greenish or reddish crystalline substance, NaNH2, obtained by passing ammonia over heated sodium..

Dissociation :: Dissociation (n.) The process by which a compound body breaks 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..

Amide :: Amide (n.) A compound formed by the union of amidogen with an acid element or radical. It may also be regarded as ammonia in which one or more hydrogen atoms have been replaced by an acid atom or radical.

Aniline :: Aniline (n.) An organic base belonging to the phenylamines. It may be regarded as ammonia in which one hydrogen atom has been replaced by the radical phenyl. It is a colorless, oily liquid, originally obtained from indigo by distillation, but now largely manufactured from coal tar or nitrobenzene as a base from which many brilliant dyes are made..

Alkalamide :: Alkalamide (n.) One of a series of compounds that may be regarded as ammonia in which a part of the hydrogen has been replaced by basic, and another part by acid, atoms or radicals..

Amic :: Amic (a.) Related to, or derived, ammonia; -- used chiefly as a suffix; as, amic acid; phosphamic acid..

Phenylamine :: Phenylamine (n.) Any one of certain class of organic bases regarded as formed from ammonia by the substitution of phenyl for hydrogen.

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