Journal of the Iranian Chemical Society

, Volume 3, Issue 2, pp 180–184 | Cite as

Kinetics and mechanism of oxidation of 1,2-butanediol by argentate(III) complex in alkaline medium

  • S. -Y. Huo
  • J. -H. Shan
  • S. -G. Shen
  • H. -W. Sun


The kinetics of oxidation of 1,2-butanediol by dihydroxyditellutoargentate(III) (DDA) is studied spectrophotometrically. The reaction rate shows first order dependence in DDA and 1 < nap < 2 order in 1,2-butanediol. It is found that the pseudo-first order rate constant k obs increases with the increase in concentration of OH and decreases with the increase in concentration of TeO4 2−. There is a negative salt effect; no free radical is detected. In view of this, the dihydroxymonotelluratoargentate(III) species is assumed to be the active species. A plausible mechanism involving a two-electron transfer is proposed and the rate equations derived from mechanism explains all experimental results. The activation parameters along with the rate constants of the rate-determining step are calculated.


Dihydroxyditellutoargentate(III) 1,2-Butanediol Redox reaction Kinetics and mechanism 


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Copyright information

© Iranian Chemical Society 2006

Authors and Affiliations

  • S. -Y. Huo
    • 1
  • J. -H. Shan
    • 1
  • S. -G. Shen
    • 1
  • H. -W. Sun
    • 1
  1. 1.College of Chemistry and Environmental ScienceHebei UniversityBaodingChina

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