核化学与放射化学2009，Vol.31Issue(4)：198-201,4.
高氯酸介质中单甲基肼与亚硝酸的反应动力学
Reaction Kinetics of Monomethylhydrazine With Nitrous Acid in Perchloric Acid Solution
魏艳 1王辉 1潘永军 1丛海峰 1矫海洋 1贾永芬 1郑卫芳1
作者信息
- 1. 中国原子能科学研究院,放射化学研究所,北京,102413
- 折叠
摘要
Abstract
The oxidation of monomethylhydrazine(MMH) by nitrous acid was researched in perchloric acid solution with spectrophotometry. The rate equation has been determined as follows: -dc(HNO_2)/dt=kc(H~+)~(0.9)c(MMH)~(1.1)c(HNO_2), k is (46.0±2.7) L~2/(mol~2·s) with the initial perchlorate concentration of 0.50 mol/L at the temperature of 4.5 ℃. The corresponding activation energy of the reaction is (42.4±0.1) kJ/mol. The results indicate that oxidation of mono-methylhydrazine(MMH) by nitrous acid is fast. The higher concentration of MMH can accelerate the reduction process of nitrous acid. Higher acidity can also speed up the reduction of nitrous acid.关键词
高氯酸/单甲基肼/亚硝酸/反应动力学Key words
perchloric acid/ mono-methylhydrazine/ nitrous acid/ reaction kinetics分类
化学化工引用本文复制引用
魏艳,王辉,潘永军,丛海峰,矫海洋,贾永芬,郑卫芳..高氯酸介质中单甲基肼与亚硝酸的反应动力学[J].核化学与放射化学,2009,31(4):198-201,4.
