Walisongo Journal of Chemistry
Vol. 8 No. 1 (2025): Walisongo Journal of Chemistry

THE KINETICS AND OXIDATION OF NEUTRAL RED BY ClO₃⁻ IN AN AQUEOUS ACIDIC MEDIUM

Umoru, Patricia Ese (Unknown)
Nkole, Ikeckuwku Ugbaga (Unknown)
Micheal, Joyce Felicity (Unknown)



Article Info

Publish Date
14 Jul 2025

Abstract

The kinetics and oxidation of neutral red by chlorate ion were studied in an aqueous hydrochloric acid medium at 300 K, with an ionic strength (µ) of 0.2 M (NaCl), by monitoring the absorbance of neutral red (NR) at 515 nm. The reaction was found to be first order concerning both [NR] and [ClO₃⁻], with a stoichiometric mole ratio of 1:1 between NR and ClO₃⁻. The effect of ionic strength variations was further confirmed by observations that the reaction rate was independent of changes in ionic strength and that the addition of cations had no effect on the rate. No evidence of active radical involvement was observed. The experimental rate law determined was: Rate = (Kk₃[H⁺])[NR][ClO₃⁻]. Based on the experimental results, an outer-sphere mechanistic pathway is proposed.

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Journal Info

Abbrev

wjc

Publisher

Subject

Chemistry

Description

Walisongo journal of chemistry is a peer reviewed and open access journal published by Chemistry Department, faculty of Science and Technology, UIN Walisongo Semarang. This journal covering all areas of chemistry including inorganic, organic, physic, analytic, biochemistry, and environmental ...