The reaction of hydrogen atoms and of alcohol radicals with monovalent silver ions is studied in aqueous solution by means of pulse radiolysis. In acidic aqueous solutions containing silver ions and an alcohol, hydrogen atoms react with silver ions to form AgH+ with a rate constant of k=1.5 × 1010dm3mol-1s-1. This complex dissociates into free silver atoms and hydrogen ions with a first order rate constant of 2 × 107s-1. A reaction of alcohol radicals with silver ions could not be observed in aqueous solutions containing either methanol, ethanol or 2-propanol during times of up to 15ms; the rate constant would therefore have to be smaller than 1 × 104dm3mol-1s-1.
通过脉冲辐射分析法研究了水溶液中氢原子和醇自由基与一价银离子的反应。在含有银离子和一种醇的酸性水溶液中,氢原子与银离子反应生成 AgH+,速率常数为 k=1.5 × 1010dm3mol-1s-1。这种复合物解离成游离银原子和氢离子,一阶速率常数为 2 × 107s-1。在含有甲醇、乙醇或 2-丙醇的水溶液中,在长达 15 毫秒的时间内无法观察到醇自由基与银离子的反应;因此,速率常数必须小于 1 × 104dm3mol-1s-1。