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    • Selenium dioxide catalysed oxidation of acetic acid hydrazide by bromate in aqueous hydrochloric acid medium

      R S Yalgudre G S Gokavi

      Volume 124 Issue 4 July 2012 pp 821-826

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/124/04/0821-0826

    • Keywords

       

      Acetic acid hydrazide; oxidation; bromate; kinetics; selenium dioxide; catalysis.

    • Abstract

       

      Selenium dioxide catalysed acetic acid hydrazide oxidation by bromate was studied in hydrochloric acid medium. The order in oxidant concentration, substrate and catalyst were found to be unity. Increasing hydrogen ion concentration increases the rate of the reaction due to protonation equilibria of the oxidant. The mechanism of the reaction involves prior complex formation between the catalyst and substrate, hydrazide, followed by its oxidation by diprotonated bromate in a slow step. Acetic acid was found to be the oxidation product. Other kinetic data like effect of solvent polarity and ionic strength on the reaction support the proposed mechanism.

    • Author Affiliations

       

      R S Yalgudre1 G S Gokavi1

      1. Kinetics and Catalysis Laboratory, Department of Chemistry, Shivaji University Kolhapur 416 004, India

    • Dates

       
      Published
      July 2012
      Manuscript received
      8 June 2011
      Manuscript revised
      31 August 2011
      Accepted
      13 September 2011

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