Mechanism for the Reduction of Ceric Ion by Formic Acid Induced by Cobalt-60 Gamma-Radiation

Publisher Website
Google Scholar
Abstract
In the radiolysis of air-saturated sulfuric acid solutions containing ceric ion-cerous ion-formic acid mixtures at constant initial (Ce+++)/ (HCOOH), the initial G(Ce+++) decreases with decreasing total concentration of cerous ion and formic acid. These data are quantitatively interpreted by assuming that cerous ion, formic acid, and sulfuric acid compete with each other for OH radicals. Although the OH radical reacts with both cerous ion and formic acid, it is assumed that the HSO4 radical (formed by reaction of OH radical with sulfuric acid) oxidizes cerous ion but does not react with formic acid. Thus, kinetic evidence is presented for an influence of sulfuric acid on reactions of OH radical in sulfuric acid solutions.

This publication has 0 references indexed in Scilit: