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.
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页码：2499 / &
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