The Kinetics and Mechanism of the Oxidation of Inorganic Oxysulfur Compounds by Potassium Ferrate Part IV - A Theoretical Analysis of Four Models Proposed to Explain Some of the Unusual Results for Trithionate, Tetrathionate and Pentathionate Ions

The kinetics and mechanism of the reaction between a series of inorganic oxysulfur compounds and potassium ferrate have been studied. Although a clear pattern has been developed, there are certain anomalous results, often pH dependent, which could be occurring because of hydrolysis or impurities. This paper addresses this problem by examining four theoretical models applied to some of the kinetic results obtained for trithionate, tetrathionate and pentathionate ions. The models examined are: