/huy"dreuh zeen'/, n.1. Also called diamine. a colorless, oily, fuming liquid, N2H4, that is a weak base in solution and forms a large number of salts resembling ammonium salts: used chiefly as a reducing agent and a jet-propulsion fuel.2. a class of substances derived by replacing one or more hydrogen atoms in hydrazine by an organic group.[1885-90; HYDR-2 + AZ- + -INE2]
* * *(N2H4), one of a series of compounds called hydronitrogens and a powerful reducing agent. It is used in the synthesis of various pesticides, as a base for blowing agents that make the holes in foam rubber, and as a corrosion inhibitor in boilers. Hydrazine is a colourless liquid with an ammonia-like odor. It has a melting point of 2.0° C (35.6° F) and a boiling point of 113.5° C (236.3° F). It readily absorbs moisture to form the hydrate N2H4·H2O.Hydrazine was first isolated from organic compounds in 1887. The common method of preparation is by the Raschig process, which involves the oxidation of ammonia with sodium hypochlorite in the presence of gelatin or glue. (Other variations of this process substitute urea for ammonia.)Hydrazine reacts with acids and some metallic salts, and the products are used in the manufacture of certain explosives and agricultural fungicides. Hydrazine reacts with organic compounds to form alkyl hydrazines, used as fuel in rocket and jet propulsion. Other reactions with organic compounds yield hydrazones and hydrazides, which are used in such pharmaceuticals as isoniazid (in the treatment of tuberculosis) and as chemical intermediates in the production of polymers and photographic chemicals.
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Hydrazine — Dimensions et modèle 3D de l hydrazine Général … Wikipédia en Français
hydrazine — [ idrazin ] n. f. • 1890; de hydr(o) et az(ote) ♦ Chim. Base liquide corrosive (H2N NH2) formée d hydrogène et d azote, utilisée comme combustible dans les fusées. ● hydrazine nom féminin Combinaison H2N―NH2 de l azote et de l hydrogène. Composé… … Encyclopédie Universelle
Hydrazine — Hy dra*zine, n. [Hydr + azo + ine.] (Chem.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of … The Collaborative International Dictionary of English
hydrazine — hydrazine. См. диамид. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
Hydrazīne — Hydrazīne, organische Basen, die sich vom Hydrazin H2N NH2 ableiten, im Molekül 2 Stickstoffatome enthalten, leicht oxydierbar sind und Fehlingsche Kupferlösung reduzieren. Man kennt primäre H., bei denen in einer Amidogruppe 1 Atom Wasserstoff,… … Meyers Großes Konversations-Lexikon
Hydrazine — sulfate, an alternative medicine that has been claimed to be a treatment for cancer. It has been used as a first line agent in cancer therapy and as a treatment for cancer related anorexia (loss of appetite) and cachexia (loss of muscle mass and… … Medical dictionary
hydrazine — [hī′drə zēn΄, hī′drəzin] n. [ HYDR(O) + AZINE] a colorless, corrosive, liquid base, H2NNH2, used as a jet and rocket fuel, a reducing agent, antioxidant, etc … English World dictionary
Hydrazine — For the antidepressant, see Hydrazine (antidepressant). Hydrazine … Wikipedia
hydrazine — /ˈhaɪdrəzin/ (say huydruhzeen), / zaɪn/ (say zuyn) noun 1. a compound, N2H4, which is a weak base in solution and forms a large number of salts resembling ammonium salts, used as a reducing agent and as a jet propulsion fuel. 2. any of a class of … Australian English dictionary
hydrazine — noun Etymology: International Scientific Vocabulary Date: 1887 a colorless fuming corrosive strongly reducing liquid base N2H4 used especially in fuels for rocket and jet engines; also an organic base derived from this compound … New Collegiate Dictionary