The kinetics of the oxidation of a mercaptan to the corresponding disulfide by aqueous hydrogen peroxide

I Pascal, DS Tarbell

Index: Pascal; Tarbell Journal of the American Chemical Society, 1957 , vol. 79, p. 6015,6016

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Citation Number: 45

Abstract

The kinetics of the oxidation of o-mercaptophenylacetic acid (I) to the corresponding disulfide (11) by hydrogen peroxide in aqueous solution have been studied spectrophotometrically. The rate in the PH range 2.44-7.17 in the presence of excess hydrogen peroxide was pseudo zero order and was expressed by the equation:-d (RSH)/dt= ko= ko'(H202)/(H+)'/~ 4-ko"/(H+)'/r. Added ferrous ion increased the rate, the pseudo zero- ...