Kinetics and mechanism of silver(I) catalysed autoxidation of aqueous sulphur(IV) in acetate buffered medium

Author： Gupta K.S.   Bhargava P.   Manoj S.V.   Bhargava R.  

Publisher： Springer Publishing Company

ISSN： 0340-4285

Source： Transition Metal Chemistry, Vol.25, Iss.3, 2000-06, pp. : 329-332

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Abstract

The kinetics of the silver(I) catalysed autoxidation of aqueous sulphur(IV) an acetate buffered medium obey the rate law: -d[S^IV]/dt = D[Ag^I][S^IV]^2[H^+]^−1/(B+C[S^IV]). The rate is independent of [O_2] but strongly inhibited by EtOH. A free radical mechanism is proposed.

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