MECHANISM AND KINETICS OF THE UNCATALYZED MERCURY(I)-CERIUM(IV) REACTION

被引：25

作者：

McCurdy, W. H., Jr. ^{[1
]}

Guilbault, G. G. ^{[2
]}

机构：

[1] Univ Delaware, Newark, DE 19716 USA

[2] Princeton Univ, Princeton, NJ 08544 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1960年 / 64卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/j100841a006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rate of oxidation of mercury(I) perchlorate by cerium(IV) sulfate in perchloric acid media has been found to follow the rate expression: -d[Ce(IV)]/dt = 8.5 [Ce(IV)][Hg(2)(+2)] at 50.0 degrees, in which the concentrations are moles per liter and time is in minutes. The dependence of the reaction rate on sulfuric and perchloric acids is discussed in terms of the cerium(IV) species in solution. A reaction mechanism is proposed in which the rate-determining step is believed to involve concomitant breaking of the (Hg-Hg)(+2) bond and electron transfer. The activation energy of this reaction was found to be 14.4 kcal./mole.

引用

页码：1825 / 1827

页数：3

共 8 条

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