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Citation: Shan Jin-Huan, Liu Tie-Ying. Kinetics and Meckanism of Oxidation of Ethanolamine by Diperiodatocuprate(III)Ion in Alkaline Medium[J]. Acta Physico-Chimica Sinica, ;1994, 10(10): 947-949. doi: 10.3866/PKU.WHXB19941017 shu

Kinetics and Meckanism of Oxidation of Ethanolamine by Diperiodatocuprate(III)Ion in Alkaline Medium

1.
Department of Chemistry,Hebei University,Baoding 071002

Received Date: 31 May 1993
Available Online: 15 October 1994

The kinetics of oxidation of ethanolamine by potassium diperiodatocupate (Ⅲ) was studied spectrophotometrically in alkaline medium at 293-2-303.2K. The reaction rate showed first order dependance on Cu(Ⅲ) and positive fractional order dependance on ethanolamine. It was found that the pesudo first-order([EA]. >>[Cu(Ⅲ)].) rate constant kobs increases with the increase of [OH-] and decreases with the increase of [IO-4].There is a negative salt effect of addtion of KNO3. The active species and a plausible mechanism involing free redical have been proposed. All the experimental phenomena can be explaimed by the rate equation derived from the mechanism. The rate constant of the rate-determing step together with the activation paraments have also been evaluated.
- Diperodatocuprate(III),
- Ethanolamine,
- Redox reation kinetics and mechanism
  ,
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