Oxidation kinetics of crystal violet by potassium permanganate in acidic medium
详细信息 查看全文
- 作者：Sameera Razi Khan ; Maria Ashfaq ; Mubashir…
- 刊名：Russian Journal of Physical Chemistry A, Focus on Chemistry
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：90
- 期：5
- 页码：955-961
- 全文大小：262 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Physical Chemistry
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1531-863X
- 卷排序：90
文摘
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.Keywordsoxidationcrystal violetpotassium permanganatekineticsthermodynamic parameters