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在硝酸介质中,利用分光光度法研究了亚硝酸与特丁基肼的氧化还原反应动力学。考察了特丁基肼浓度、酸度、离子强度、温度、UO22+离子浓度对反应速率的影响,实验得出的反应速率方程可表示为:-dc(HNO2)/dt=kc(HNO2)c(H+)1.36c(TBH) 在25℃时,k=3.80×103(mol/L)-2.36·min-1,反应活化能为60.72kJ/mol。离子强度和UO22+离子浓度对反应速率基本上无影响。
In nitric acid medium, the kinetics of redox reaction between nitrous acid and t-butyl hydrazine was studied by spectrophotometry. The effects of the concentration of TBT, acidity, ionic strength, temperature and UO22 + ion concentration on the reaction rate were investigated. The experimental reaction rate equation can be expressed as: -dc HNO2 / dt = kc HNO2 c H + ) 1.36c (TBH) at 25 ℃, k = 3.80 × 103 (mol / L) -2.36 · min-1, the activation energy of activation is 60.72kJ / mol. The ionic strength and UO22 + ion concentration have almost no effect on the reaction rate.