KINETICS OF HALOGEN HYDROLYSIS
KINETICS OF HALOGEN HYDROLYSIS
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DOI：
10.1021/ja00867a005
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发表时间：
1962-01-01
影响因子：
15
通讯作者：
KUSTIN, K
中科院分区：
文献类型：
--
作者：
EIGEN, M;KUSTIN, K
用温度跳跃弛豫技术研究了卤素Cl2、Br2和I2的水解动力学。总体上，BR2的进程最快，而Cl2的进程最慢。综合k反应机理X2+H20的速率常数的数值。)X“+H++XOH可以测定，测得的氢钾总分解速率常数k为：Ku=11.0秒~(-1)，FERS=110秒~(-1)，K_i=3.0秒~(-1)。提出了通过中间体X_2OH~-进行水解的一般机理。通过对pH和浓度的依赖关系的研究，可以确定或估计个别的速率常数。讨论了测定值或估计值的一般趋势。
By means of the temperature jump relaxation technique, the kinetics of hydrolysis of thehalogens Cl2, Br2 and I2 have been studied. The over-all process is fastest for Br2 and slowest for Cl2. Numerical values for the rate constants of the over-all k reaction mechanism X2+ H20.) X"+ H++ XOH could be determined. The measured values for the over-all hyk drolysis rate constant k are: kou= 11.0 sec.-1, fers= 110 sec.-1, ki,= 3.0 sec.-1. A general mechanism, in which hydroly-sis occurs via the intermediate X2OH-, is proposed. From studies of pH and concentration dependence individual rate con-stants could be determined or estimated. General trends exhibited by the measured or estimated values are discussed.