STOICHIOMETRY, KINETICS AND MECHANISM OF THE SILVER(I) CATALYZED OXIDATION OF HYPONITROUS ACID WITH PEROXODISULFATE ION IN ACID PERCHLORATE SOLUTIONS

被引:0
|
作者
BHATNAGAR, P [1 ]
MITTAL, RK [1 ]
GUPTA, YK [1 ]
机构
[1] UNIV RAJASTHAN,DEPT CHEM,JAIPUR 302004,RAJASTHAN,INDIA
关键词
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The title reaction provides the first indirect kinetic evidence for the well known assumed complex formation between S2O82- and Ag+. It is al so the first report of a reaction with comparable rates of oxidation of hyponitrous acid and water in the (S2O82 + Ag+) system. Hyponitrous acid is the first reported substrate which is not oxidised by SO4-. Peroxodisulphate ion and hyponitrous acid react in presence of silver(I) as in (i) 5S2O82- + 1.5H2N2O2 + 5H2O --> 10HSO4- + 3HNO2 + O2 ... (i) according to the rate law (ii), -d[S2O82-]/dt = (k0 + 3k1k3[H2N2O2] / k2+k3[H2N2O2])[S2O82-][Ag(I)] ... (ii) k0 and k1 were found to be (4.2 +/- 0.2) X 10(-3) and (5.0 +/- 0.2) X 10(-3) mol-1 dm3 s-1 at 25-degrees and I = 0.11 mol dm(-3).
引用
收藏
页码:195 / 200
页数:6
相关论文
共 50 条