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Hydrazine is an inorganic compound with the chemical formula N 2 H 4.It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour.Hydrazine is highly hazardous unless handled in solution as, for example, hydrazine hydrate (N 2 H 4 ·xH 2 O).
Hydrazines (R 2 N−NR 2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or aryl substituents. . Hydrazines can be considered as derivatives of the inorganic hydrazine (H 2 N−NH 2), in which one or more hydrogen atoms have been replaced by hydrocarbon grou
Ketazines are also important intermediates in the industrial production of hydrazine hydrate by the peroxide process. [3] In the presence of an oxidant, ammonia and ketones react to give hydrazine via ketazine: 2 Me(Et)C=O + 2 NH 3 + H 2 O 2 → Me(Et)C=NN=C(Et)Me + 2 H 2 O. The ketazine can be hydrolyzed to the hydrazine and regenerate the ketone:
Hydrazine sulfate, more properly hydrazinium hydrogensulfate, is a salt of the cation hydrazinium and the anion bisulfate (hydrogensulfate), with the formula N 2 H 6 SO 4 or more properly [N 2 H 5] + [HSO 4] −. It is a white, water-soluble solid at room temperature.
Monomethylhydrazine (MMH) is a highly toxic, volatile hydrazine derivative with the chemical formula CH 6 N 2. It is used as a rocket propellant in bipropellant rocket engines because it is hypergolic with various oxidizers such as nitrogen tetroxide (N 2 O 4) and nitric acid (HNO 3). As a propellant, it is described in specification MIL-PRF ...
Adipic acid dihydrazide (ADH) is a chemical used for cross-linking water-based emulsions. It can also be used as a hardener for certain epoxy resins. [2] ADH is a symmetrical molecule with a C4 backbone, and the reactive group is C=ONHNH 2. Dihydrazides are made by the reaction of an organic acid with hydrazine. Other dihydrazides with ...
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This reaction is, overall, a condensation reaction as two molecules joining together with loss of water. Mechanistically, it is an example of addition-elimination reaction : nucleophilic addition of the -NH 2 group to the C=O carbonyl group, followed by the elimination of a H 2 O molecule: [ 3 ]