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Title: Mechanism of peroxide reactions: Kinetics of oxidation of sulfanilic acid by peroxomonosulfuric acid
Authors: Panda, Radhasyam
Reddy, M Puma Ch.
Issue Date: Jun-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int. Cl7 C 07 B 33/00
Abstract: The oxidation of sulfanilic acid by peroxomonosulfuric acid (PMSA) has been investigated in the pH range 0-12.5. The reaction obeys second order kinetics, first order each in [peroxomonosulfuric acid] and [sulfanilic acid] at constant pH. The observed bell-shaped pH- rate profile with a rate maximum at pH≈5.96 has been rationalised invoking various PMSA species and the unprotonated form of sulfanilic acid as the reactiing species, and their reactivities have been estimated. The mechanism of oxidation involves the nucleophillic attack of the nitrogen lone pair of unprotonated sulfanillic acid on the electrophilic peroxo-oxygen of PMSA species.
Page(s): 1224-1227
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(06) [June 2004]

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