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Oxidation kinetics of crystal violet by potassium permanganate in acidic medium

  • Chemical Kinetics and Catalysis
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Abstract

The oxidation kinetics of crystal violet (a triphenylmethane dye) by potassium permanganate was focused in an acidic medium by the spectrophotometric method at 584 nm. The oxidation reaction of crystal violet by potassium permanganate is carried out in an acidic medium at different temperatures ranging within 298–318 K. The kinetic study was carried out to investigate the effect of the concentration, ionic strength and temperature. The reaction followed first order kinetics with respect to potassium permanganate and crystal violet and the overall rate of the reaction was found to be second order. Thermodynamic activation parameters like the activation energy (E a), enthalpy change (ΔH*), free energy change (ΔG*), and entropy change (ΔS*) have also been evaluated.

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Authors and Affiliations

  1. Department of Chemistry, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal, Karachi, Karachi, 75300, Pakistan

    Sameera Razi Khan &  Mubashir

  2. Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan

    Maria Ashfaq & Summyia Masood

Authors
  1. Sameera Razi Khan
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  2. Maria Ashfaq
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  3. Mubashir
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  4. Summyia Masood
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Correspondence to Sameera Razi Khan.

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Khan, S.R., Ashfaq, M., Mubashir et al. Oxidation kinetics of crystal violet by potassium permanganate in acidic medium. Russ. J. Phys. Chem. 90, 955–961 (2016). https://doi.org/10.1134/S0036024416050265

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  • DOI: https://doi.org/10.1134/S0036024416050265

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