Journal of Hebei University(Natural Science Edition) >

2001 , Vol. 21 >Issue 1: 53 - 56

DOI: https://doi.org/10.3969/j.issn.1000-1565.2001.01.013

Kinetics of Oxidation of Malic Acid by Ditelluratoargentate(Ⅲ) Ion in Alkaline Medium

  • SHAN Jin-Huan ,
  • WANG Li ,
  • SHEN Shi-Gang ,
  • LIU Bao-sheng ,
  • SUN Han-wen
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Online published: 2001-02-25

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Abstract

The kinetics of oxidation of malic acid by ditell uratoargentate(Ⅲ)ion was studied by spectrophotometry in alkaline medium. The reaction rate sho wed first order dependence on Ag(Ⅲ)and positive fractional order dependence on malic acid.kobs decreased with the increase in ［OH-］［TeO2- 4］ respectively. The active species and a plausible mechanism involving two-electron transfer have b een proposed .All the experimental phenomena can be explained by the rate equa tion derived from the mechanism. The rate constants of the rate-determining ste p together with the activation parameters have also been calculated.

Cite this article

SHAN Jin-Huan , WANG Li , SHEN Shi-Gang , LIU Bao-sheng , SUN Han-wen . Kinetics of Oxidation of Malic Acid by Ditelluratoargentate(Ⅲ) Ion in Alkaline Medium[J]. Journal of Hebei University(Natural Science Edition), 2001 , 21(1) : 53 -56 . DOI: 10.3969/j.issn.1000-1565.2001.01.013

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