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Reaction Kinetics and Catalysis Letters

, Volume 44, Issue 2, pp 293–301 | Cite as

Kinetic study of the oxidation of L-threonine by MnO 4 ions

  • F. Andrés
  • A. Arrizabalaga
  • J. Casado
  • R. Peche
Article

Abstract

A self-catalytic effect attributed to Mn2+ ions was observed when studying the oxidation of L-threonine by permanganate ions. The process obeys the rate equation:
$$ - d[MnO_4^ - ]/dt = k'_1 [MnO_4^ - ] + k'_2 [MnO_4^ - ][Mn^{2 + } ]$$
k 1 and k 2 being calculated using an autocatalytic kinetic scheme. The proposed mechanism includes two pathways of oxidation: one without participation of Mn2+ ions and the other catalyzed by them.

Keywords

Oxidation Physical Chemistry Catalysis Kinetic Study Rate Equation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

В исследовании окисления аминокислоты, L-треонина, ионами перманганата наблюдали автокаталитический эффект, приписываемый ионам Mn2+. Этот процесс подчиняется уравнению скорости:
$$ - d[MnO_4^ - ]/dt = k'_1 [MnO_4^ - ] + k'_2 [MnO_4^ - ][Mn^{2 + } ],$$
где k 1 и k 2 были рассчитаны, исходя из автокаталитической обработки кинетических результатов. Предложенный механизм заключает два путя окисления: один без участия ионов Mn2+, а другой — катализируемый ими.

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Copyright information

© Akadémiai Kiadó 1991

Authors and Affiliations

  • F. Andrés
    • 1
  • A. Arrizabalaga
    • 1
  • J. Casado
    • 2
  • R. Peche
    • 1
  1. 1.Departamento de Química Física, Facultad de FarmaciaUniversidad del País VascoVitoriaSpain
  2. 2.Departamento de Química Física, Facultad de QuímicaUniversidad de SalamancaSalamancaSpain

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