Kinetic and mechanistic studies on the oxidation of sulfanilic acid by peroxomonophosphoric acid |
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| Authors: | G P Panigrahi and R N Nayak |
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| Institution: | (1) Department of Chemistry, Berhampur University, 760007 Berhampur, India |
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| Abstract: | Oxidation of sulfanilic acid to the corresponding azoxy derivative by peroxomonophosphoric acid (PMPA) has been studied in aqueous medium. The observed bell-shaped pH-rate profile has been rationalized on the basis of protonation of the amino group and ionization into different PMPA species and a suitable rate law has been proposed. The mechanism of oxidation involves the nucleophilic attack of nitrogen on the electrophilic peroxo oxygen.
                     -   (PMPA)  .   pH— ,  PMPA  .    .
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