Transition Metal Chemistry

, Volume 12, Issue 1, pp 33–36 | Cite as

Kinetics and mechanism of sulphurous acid oxidation by hexachloroiridate(IV) in hydrochloric acid

  • Kalyan K. Sen Gupta
  • Sankar Das
  • Pratik K. Sen
Full Papers


The reaction between sulphurous acid and hexachloroiridate(IV) appears to take place through the formation of an intermediate complex followed by decomposition to give oxidation products. The rate is retarded as the hydrogen ion concentration increases. Thermodynamic parameters associated with the equilibrium step as well as with the slowest step have been calculated. The probable mechanism of the reaction is discussed.


Oxidation Hydrogen Physical Chemistry Inorganic Chemistry Catalysis 
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Copyright information

© Chapman and Hall Ltd 1987

Authors and Affiliations

  • Kalyan K. Sen Gupta
    • 1
  • Sankar Das
    • 1
  • Pratik K. Sen
    • 2
  1. 1.Department of ChemistryJadavpur UniversityCalcuttaIndia
  2. 2.Department of ChemistryAsutosh CollegeCalcuttaIndia

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