Kinetics and Mechanism of the Reaction of Malachite Green and Dithionite Ion
S. O. Idris, A. Tanimu, J. F. Iyun, Y. Mohammed
International Research Journal of Pure and Applied Chemistry · pp. 177–184 · Published 6 Nov 2014
10.9734/IRJPAC/2015/12428Abstract
The kinetics of the oxidation of malachite green, MG+, by dithionite ions, S2O42- have been studied spectrophotometrically in an aqueous acid free medium. The investigation was carried out under pseudo- first order conditions of an excess of dithionite concentration. Reaction conditions were ionic strength of reaction medium, µ = 0.1 mol dm–3, λmax = 620nm and T = 25.5±0.5°C. The stoichiometry of the reaction, determined by spectrophotometric titration, was 1:1. Reaction rates increased with increase in µ and dielectric constant (D) of reaction medium. Added ions catalysis of the reaction and the result of the Michaelis - Menten analysis suggest that the reaction proceeded through the outersphere pathway. A plausible mechanism is proposed.
Cited by 5
PATRICIA UMORU, UDOH EFFIONG · FUDMA JOURNAL OF SCIENCES · 2022
Patricia Umoru, Dr. Ikechukwu Ugbaga Nkole · Ata-Kimya Dergisi · 2025
R. N. Mehrotra · Organic Reaction Mechanisms Series · 2019
Ismaila Ibrahim, Sulaiman O. Idris, Ibrahim Abdulkadir · Results in Chemistry · 2022
I. U. Nkole, S. O. Idris · Chemistry Africa · 2021
Related research
- Kinetics of Enzymatic Hydrolysis of Southeast Sulawesi Sago Starch — shares topic coverage
- Kinetics and Mechanism of the Adsorption of Methylene Blue from Aqueous Solution onto Turkish Green Clay — shares topic coverage
- Kinetics of Powder-Free Laboratory Examination Gloves at 345°C and 405°C by Thermogravimetric Analysis — shares topic coverage
- Kinetics of Powder-Free Laboratory Examination Gloves at 323°C and 408°C by Thermogravimetric Analysis — shares topic coverage
- Anthocyanin Degradation and Colour Kinetics of Cornelian Cherry Concentrate — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
5
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.