Kinetics of oxidation of methylhydrazines in water. Factors controlling the formation of 1,1-dimethylnitrosamine |
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Authors: | Sujit Banerjee Edward J Pack Harish Sikka Christine M Kelly |
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Institution: | Life and Environmental Sciences Division Syracuse Research Corporation Syracuse, N.Y. 13210 USA |
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Abstract: | The kinetics of oxidation of methylhydrazine () and 1,1-dimethylhydrazine () by dissolved oxygen in water has been measured at various acidities as a function of catalyst (cupric ion) concentration. In dilute solutions the oxidation occurs through a cupric ion catalyzed process as well as by an uncatalyzed step. The extent of formation of nitrosodimethylamine () depends upon the initial concentration. In dilute solutions is not formed, but in more concentrated solutions, formation increases with increasing content, reaches a maximum at 60–80% (by volume) and then decreases. The yield appears to approximately parallel the viscosity of the medium, and it is speculated that the factors which control viscosity may also be responsible for governing formation. |
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