Rate studies of CoO catalysed autoxidation of S(IV) inhibited by methanol in alkaline medium

Abstract

The influence of methanol on CoO catalysed S(IV) oxidation in alkaline medium was studied. The kinetics of atmospheric autoxidation of sulphur (IV) by CoO in the pH range 7.34-9.40 has been studied and based on the observed results a free radical mechanism is operative and a rate law has been proposed. Hence the results are useful for modeling rain water acidity and therefore a great use of meteorology and atmospheric chemistry. d[S(lV)]/dt = (k1+ k2[CoO]) [S(lV)]/1 + B [Methanol].