cyanogen

cy·an·o·gen

C0832600 (sī-ăn′ə-jən)n.1. A colorless, flammable, pungent, highly poisonous gas, C₂N₂, used as a rocket propellant, an insecticide, and a chemical weapon.2. A univalent CN group found in simple and complex cyanide compounds.

cyanogen

(saɪˈænədʒɪn) n (Elements & Compounds) an extremely poisonous colourless flammable gas with an almond-like odour: has been used in chemical warfare. Formula: (CN)2[C19: from French cyanogène; see cyano-, -gen; so named because it is one of the constituents of Prussian blue]

cy•an•o•gen

(saɪˈæn ə dʒən, -ˌdʒɛn)

n. 1. a colorless, poisonous, flammable gas, C₂N₂, used chiefly in organic synthesis. 2. the univalent group CN. [1820–30; < French cyanogène (1815); see cyano-¹, -gen (so named because it is a component of Prussian blue)]

Thesaurus

Noun

cyanogen - a colorless toxic gas with a pungent almond odor; has been used in chemical warfaregas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

Translations

cyanogen

(sīăn`əjən), NCCN, colorless, flammable, extremely poisonous gas with a characteristic odor somewhat like that of hydrogen cyanide. It melts at −35&degC;, boils at −21&degC;, and is soluble in water, ethanol, or ether. It is chemically very active.

Cyanogen

N≡C—C≡N, the dinitrile of oxalic acid; a colorless gas, with a pungent odor, a melting point of –27.8°C, and a boiling point of –21.15°C. Cyanogen is poorly soluble in water but dissolves more readily in alcohol, ether, and acetic acid. Upon prolonged heating at 400°C, it is converted into the amorphous polymer paracyanogen (CN)_x, where x ranges from 2,000 to 3,000; at 800°C, paracyanogen is completely depolymerized. Cyanogen is characterized by pseudohalogen properties; for example, like chlorine, it reacts with aqueous solutions of alkalies:

(CN)₂ + 2KOH→KCN + KCNO + H₂O

Cyanogen may be produced by the catalytic oxidation of hydrocyanic acid, by the reaction of heated coke with nitrogen, or by the dehydration of the diamide of oxalic acid, (CONH₂)₂. It is also formed during the pyrolysis of nitrogen-containing organic compounds and thus is found in small amounts in coke gas and blast-furnace gas. Cyanogen has been detected spectroscopically in comets. It is used in organic synthesis.

Although poisonous, cyanogen is less toxic than hydrocyanic acid and its salts—the cyanides.

REFERENCE

Brotherton, T. K., and J. W. Lynn. “The Synthesis and Chemistry of Cyanogen.” Chemical Reviews, 1959, vol. 59, no. 5, p. 841.

S. K. SMIRNOV

cyanogen

[sī′an·ə·jən] (chemistry) A univalent radical, CN. (inorganic chemistry) C₂N₂ A colorless, highly toxic gas with a pungent odor; a starting material for the production of complex thiocyanates used as insecticides. Also known as dicyanogen.

cyanogen

an extremely poisonous colourless flammable gas with an almond-like odour: has been used in chemical warfare. Formula: (CN)₂

cyanogen

cy·an·o·gen

(sī-an'ō-jen), 1. A compound of two cyano radicals, NC-CN. 2. Highly toxic compounds (general formula X-CN, where X is a halogen) that are used in chemical syntheses and as tissue preservatives. An example is cyanogen bromide.

cy·an·o·gen

(sī-an'ō-jen) 1. Synonym(s): ethanedinitrile. 2. A term used to refer to the cyanide radical in compounds, such as cyanogen chloride (CNCl₂) and cyanogen bromide (CNBr₂), in which the cyanide moiety is bound to one or more halide atoms.

cyanogen

(sī-ăn′ō-jĕn) [″ + gennan, to produce] 1. The radical CN. 2. A poisonous gas, CN−CN.

cyanogen

cy·an·o·gen

cyanogen

cy•an•o•gen

cyanogen

cyanogen

Cyanogen

REFERENCE

cyanogen

cyanogen

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Words related to cyanogen

noun a colorless toxic gas with a pungent almond odor

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