Kinetics and Mechanism of the Aquation of Iodopentaaquochromium(III) Ion and of Oxidation of Coordinated Iodide Ion in Acidic Solution

1964 ◽  
Vol 3 (7) ◽  
pp. 968-972 ◽  
Author(s):  
James H. Espenson
Keyword(s):  
Acidic Solution ◽  
Kinetics And Mechanism ◽  
Iodide Ion

scholarly journals Kinetics and Mechanism of the Redox Reaction Between Pt(IV) Chloride Complex Ions and Sodium Thiosulfate in Aqueous Solution. Part I: Acidic Solution/ Kinetyka I Mechanizm Reakcji Redox Pomiędzy Chlorkowymi Jonami Kompleksowymi Pt(Iv) I Tiosiarczanem Sodu W Roztworach Wodnych. Część I: Roztwór Kwaśny

2014 ◽  
Vol 59 (4) ◽  
pp. 1413-1420 ◽  
Author(s):  
K. Pacławski ◽  
J. Piwowonska
Keyword(s):  
Acidic Solution ◽  
Solid Phase ◽  
Sodium Thiosulfate ◽  
Chloride Complex ◽  
Elementary Step ◽  
Kinetics And Mechanism ◽  
Complex Ions ◽  
Mechanism Of Reaction ◽  
Entropy Of Activation ◽  
Enthalpy And Entropy

Abstract In this work, spectrophotometric studies of the kinetics and mechanism of reaction between [PtCl6]2- complex ions and sodium thiosulfate, were carried out. The influence of different conditions, such as: initial concentrations of reductant and platinum(IV) complex ions, ionic strength, pH and temperature on the rate constant, was experimentally determined. From the obtained results, the molecularity of the first elementary step, value of the enthalpy and entropy of activation in Eyring equation as well as corresponding rate equation, were experimentally determined. It was found that the reaction is relatively slow and leads to the S, Pt and PtS colloids formation. The best conditions for solid phase formation containing Pt are at pH = 5.

Kinetics and Mechanism of the Oxidation of Bromide by Periodate in Aqueous Acidic Solution

2014 ◽  
Vol 118 (45) ◽  
pp. 10713-10719 ◽  
Author(s):  
Viktor Szél ◽  
György Csekő ◽  
Attila K. Horváth
Keyword(s):  
Acidic Solution ◽  
Kinetics And Mechanism ◽  
Aqueous Acidic Solution
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