N,N-乙基，羟乙基羟胺与亚硝酸的反应动力学

Reaction Kinetics of N, N-ethyl(hydroxyethyl)hydroxylamine With Nitrous Acid

摘要: 采用分光光度法研究HNO₂与N，N-乙基，羟乙基羟胺(EHEH)在高氯酸介质中的反应动力学，得到了反应动力学速率方程。研究结果表明：当温度为25 ℃、离子强度为1.0 mol/L时，反应速率常数k=3.43 (mol/L)^{-0.93•min-1}，反应活化能E_a=(50.0±2.5) kJ/mol；升高温度、提高EHEH和高氯酸浓度，反应速率加快。

Abstract: The reaction between N,N-ethyl(hydroxyethyl)hydroxylamine （EHEH） and nitrous acid was spectrophotometrically investigated in the medium of HClO₄and the kinetic rate equation was obtained. The rate constant k is 3.43 (mol/L^{)-0.93•min-1} at 25 ℃, I=1.0 mol/L and activation energy E_a of the reaction is (50.0±2.5) kJ/mol. The reaction rate increases with rising temperature, the concentrations of EHEH and HClO₄.