hydrazine


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Related to hydrazine: Methyl hydrazine

hydrazine

 [hi´drah-zēn]
a gaseous diamine, H4N2, or any of its substitution derivatives.

hy·dra·zine

(hī'dră-zēn),
H2N-NH2, an oily liquid from which phenylhydrazine and similar products are derived. It is very toxic and possibly a carcinogen.
References in periodicals archive ?
Recently, we reported a unique behavior of hydrazine hydrate towards certain benzofurans to produce phenolic-based pyrazoles [42].
AST decreased significantly in the hydrazine-treated rats at both 24 and 48 h postdosing, perhaps owing to hydrazine or its metabolites causing sequestration of the aminotransferase cofactor pyridoxal 5-phosphate, resulting in inhibitory effects on aminotransferase activities [9-14, 35].
Creation of [Sb.sub.2][Se.sub.3] Nanorods Using Hydrazine Hydrate ([N.sub.2][H.sub.4]-[H.sub.2]O) and Morphological Changes Induced by Permanganate (Mn[O.sub.4.sup.-]).
The antifungal activities of all the synthesized substituted (E)-1-benzylidene-2-(3-nitrophenyl) hydrazine compounds have been studied against three fungal species namely, Aspergillus niger, Mucor species and Trigoderma viride.
"GPIM is the key mission to demonstrate a green monopropellant alternative to hydrazine," said Jim Oschmann, vice president and general manager of Civil Space and Technology at Ball Aerospace.
Hydrazine derivatives are dangerous for any types of exposure, because they have long-term and specific effects and particularly they cause tumors in organs and tissues of animals [7].
For comparison to conventionally used propellants based on hydrazine, the [Isp.sub.vac] and [rho][Isp.sub.vac] of hydrazine-oxidizer systems (neat hydrazine, monomethylhydrazine (MMH), unsymmetrical dimethylhydrazine (UDMH), and Aerozine 50) are shown in Figures 11 and 12, respectively.
The synthesis uses a hydrazine reduction route taking advantage of sonication at room temperature.
Osazone formation is the direct reaction of any of these carbohydrates (glucose, fructose and mannose) with phenyl hydrazine which resulted in the formation of crystalline colored compounds which was applied for the qualitative analysis of these compounds.
If verified as a valid alternative, this new propellant could be used not only in spacecraft, but also in military vehicles that operate on hydrazine, said Roger Myers, executive director of Aerojet Rocketdyne, a partner in the program.
One of the chemicals he mentioned was hydrazine, a highly toxic compound, also necessary for the proper maintenance of power station units.