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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 ...
Due to the symmetry of the hydrazine molecule, it does not matter which hydrogen atom is replaced. It is sometimes used as a rocket fuel. 1,1-dimethylhydrazine (unsymmetrical dimethylhydrazine, UDMH) and 1,2-dimethylhydrazine (symmetrical dimethylhydrazine) are hydrazines where two hydrogen atoms are replaced by methyl groups. UDMH is the ...
Methylhydrazines are hydrazines that have additional methyl groups. Heavily methylated versions exist as hydrazinium salts. Members of this class include: Monomethylhydrazine. Monomethylhydrazinium (cationic and exists as a variety of salts) Dimethylhydrazines. Symmetrical dimethylhydrazine (1,2-dimethylhydrazine)
Hydrazine and its methyl derivatives are toxic but LD50 values have not been reported. [17] It is a precursor to dimethylnitrosamine, which is carcinogenic. [18] According to scientific data, usage of UDMH in rockets at Baikonur Cosmodrome has had adverse effects on the environment. [19]
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).
Safety data sheet (SDS) MSDS: Except where otherwise noted, ... It can be prepared by the reaction of hydrazine sulfate with 2,4-dinitrochlorobenzene: [1] DNP test
Aerozine 50 is a 50:50 mix by weight of hydrazine and unsymmetrical dimethylhydrazine (UDMH), [1] [2] developed in the late 1950s by Aerojet General Corporation as a storable, high-energy, hypergolic fuel for the Titan II ICBM rocket engines.
NFPA 704 safety squares on containers of ethyl alcohol and acetone. "NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response" is a standard maintained by the U.S.-based National Fire Protection Association.