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Hydrazines unsym

They should not be excessively toxic, corrosive, reactive with air or thermally unstable. Their performance should be as high as possible and this is obriously limited to particutar chemical structures. Subsequently blends were introduced for example, 50/50 hydrazine/unsym-dimethyUiydrazine (UDMH), or UDMH w ith acetonitrile and diethylenetriamine (DKTA). On UDMH sec Vol. Ill, p. 308. [Pg.647]

Dimethyl hydrazine, unsym-Dime thy I hydrazine asym-dimethylhydrazine IV, N-dimethy[hydrazine UDMH Dimazine. C2HtN2 mol wt 60.10, C 39.97%, H 13.42%, N 46.62%. (CHj)2NNHj. Prepd industrially by the reaction of dimethylamine and chloramine by reduction of nitrosodimethylamine (obtained by treating a dimethylamine salt with sodium nitrite) Hatt, Org. Syn. coll. vol. II, 211 (1943). Subacute toxicity study Cornish, Hartung, Toxicol. Appl. Pharmacol. 15, 62 (1969). Acute toxicity data Wit-kin, Arch. Ind. Health 13, 34 (1956). Review and evaluation of studies of carcinogenicity in laboratory animals IaRC Monographs 4, 137 -143 (1974). [Pg.512]

Synonyms BRN 0605261 CCRIS 258 Dimazine asjm-Dimethylhydrazine unsym-D me hy -hydrazine A, A -Dimethylhydrazine DMH EINECS 200-316-0 NSC 60517 RCRA waste number U098 UDMH UN 1163. [Pg.481]

Zabetakis et al (Ref 6) reported that mixts of JP-4 UDMH (unsym-Dimethyl Hydrazine,... [Pg.520]

Radiomic a) RP-1, JP-4 JP-5 Kerosene Fractions b) IRFNA Inhibited Red Fuming Nitric Acid c) UDMH Unsym Dimethyl Hydrazine 85-100 General purpose attitude control... [Pg.599]

Dimazine. A. code name for unsym-Dimethyl-hydrazine, described in this Vol under Di-methylhydtazine and Derivatives... [Pg.194]

Si RJ-1 or RP-1, unsym- dimethyl hydrazine (UDMH) white inhibited fuming nitric acid... [Pg.477]

Delta Racket. A launch vehicle or booster or booster system conaisting of one to three stages. Depending upon the thrust desired, the fuel may be LOX (liquid oxygen explosives or oxyliquits) R J-i or RP-1, unsym- dimethyl hydrazine (UDMH) white inhibited fuming nitric acid... [Pg.476]

N-Nitrosamines. Hydrogenation of IV-nitrosamines over palladium, platinum, and nickel catalysts usually proceeds to give amines, and in rather few cases have unsym-hydrazines been obtained in good yields. Amines may also be formed directly from nitrosamines by a rather complex parallel reaction. [Pg.364]

DIMETHYLHYDRAZINE uns-DIMETHYLHYDRAZINE unsym-DIMETHYLHYDRAZINE 1,1-DIMETHYL-HYDRAZINE (GERMAN) DIMETHYLHYDRAZINE, unsymmetrical (DOT) DMH NIESYMETRYCZNA D XTJ METYLOHYDRAZYNA (POLISH) RCRA WASTE NU.MBER U098 UDMH (DOT)... [Pg.536]

These compounds are prepared in part by methods similar to those for amines in addition, specific methods are employed including the reduction of diazonium compounds, reduction of azo compounds, and reduction of nitrosamines leading to sym or unsym-substituted hydrazines. [Pg.818]

An important application of thermodynamic control occurs in the manufacture of Viagra 12, Pfizer s treatment for impotence.3 The NE corner of the molecule comes from the pyrazole acid 13 removal of the hydrazine portion reveals the one piece of continuous carbon skeleton 14. 1,3-Dicarbonyl disconnection gives an unenolisable diester (an oxalate) and an unsym-metrical ketone, pentan-2-one 15. [Pg.29]

Aminonitriles from unsym. hydrazines NNHg NGHgGHgGN... [Pg.139]

Sym. azines. 90%-Hydrazine hydrate added to 2-ethylthio-3-ethylbenzothiazo-lium ethosulfate in methanol, then triethylamine added whereupon the temp, rises to 40-50° 3-ethylhenzothiazol-2-one azine. Y 95. — Direct reaction of nucleophiles with a-oxo-N-heterocyclics is not possible. F. e., also unsym. azines, s. S. Hunig et al., A. 676, 36 (1964). [Pg.161]

Synonym Dimazine UDMH unsym-Dimethyl-hydrazine Chemical Formula (CHj)2N NH2 (ill Observable Characteristics — Physical State (as normally shipped) Liquid Color Colorless Odor Sharp ammoniacal fishy (iii) Physical and Chemical Properties — Physical State at 15 C and I atm. Liquid Molecular Weight 60.11 Boiling Point at I atm. 146, 63.3, 336.5 Freezing Point -71, -57, 216 Critical Temperature 480, 249, 522 Critical Pressure 865, 53.5, 5.40 Specific Gravity 0.791 at 20 C (liquid) Vapor ((Jas) Density 2.1 Ratio of Specific Heats of Vapor (Gas) 1.152 Latent Heat of Vaporization 261, 145, 6.07 Heat of Combustion -14,170, -7,870, -329.3 Heat of Decomposition Not pertinent (iv) Health Hazards Information... [Pg.512]

Lithium tetrahijdridoaluminate Unsym. hydrazines from N-nitrosamines... [Pg.273]

See other pages where Hydrazines unsym is mentioned: [Pg.254]    [Pg.254]    [Pg.359]    [Pg.220]    [Pg.254]    [Pg.254]    [Pg.359]    [Pg.220]    [Pg.74]    [Pg.255]    [Pg.316]    [Pg.364]    [Pg.255]    [Pg.599]    [Pg.372]    [Pg.23]    [Pg.74]    [Pg.191]    [Pg.23]    [Pg.887]    [Pg.210]    [Pg.19]    [Pg.74]   


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