KINETICS OF REACTION OF IODIDE ION OXIDATION WITH VANADIUM(5) IN SULPHURIC ACID MEDIUM

被引：6

作者：

NIKOLOV, GS

MIHAILOV.D

机构：

[1] University of Sofia, Department of Chemistry, Sofia 26-

来源：

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1969年 / 31卷 / 08期

关键词：

D O I：

10.1016/0022-1902(69)80582-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

It is shown that the oxidation of iodide with vanadium(V) in sulphuric acid medium and in an atmosphere of nitrogen preceeds according to the kinetic equation: d[I2] dt = (k′[H+] + k″[H+]2) [V(V)]. [I-], where k′ = (1·6 ± 0·1) 10-2 I-2. mole-2 sec-1 and k″ = (8·31 ± 0·05) 10-2I3. mole-3 sec-1 for 20°C and 1 mole (Na)HSO4. The temperature dependence of k″ has shown ΔEa = 11·7 kcal/mole and ΔSa293 = - 12·5 e.u. A mechanism is proposed including as rate determining stage the reorganization of the initial complex between vanadium(V) and iodide. © 1969.

引用

页码：2499 / &

共 17 条

[1]

BASOLO F, 1962, PROG INORG CHEM, V4, P428

[2] The simultaneous reduction of vanadic acid and oxygen by iodide - Induced catalysis of oxygen reactions [J].