Oxidation kinetics of crystal violet by potassium permanganate in acidic medium
- Authors: Khan S.R.1, Ashfaq M.1, Mubashir 1, Masood S.1
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Affiliations:
- Department of Chemistry
- Issue: Vol 90, No 5 (2016)
- Pages: 955-961
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/168150
- DOI: https://doi.org/10.1134/S0036024416050265
- ID: 168150
Cite item
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 (Ea), enthalpy change (ΔH*), free energy change (ΔG*), and entropy change (ΔS*) have also been evaluated.
About the authors
Sameera Razi Khan
Department of Chemistry
Author for correspondence.
Email: sameerarazi_khan@yahoo.com
Pakistan, Gulshan-e-Iqbal, Karachi, Karachi, 75300
Maria Ashfaq
Department of Chemistry
Email: sameerarazi_khan@yahoo.com
Pakistan, Karachi, 75270
Mubashir
Department of Chemistry
Email: sameerarazi_khan@yahoo.com
Pakistan, Gulshan-e-Iqbal, Karachi, Karachi, 75300
Summyia Masood
Department of Chemistry
Email: sameerarazi_khan@yahoo.com
Pakistan, Karachi, 75270