Étude cinétique de la N-chloration de l'acide cyanurique en phase aqueuse

Abstract

A complete kinetic study of the N-chlorination, in basic aqueous medium, of cyanuric acid by the stopflow spectrophotometric method is presented. Our experimental results can be interpreted by two pairs of kinetically indistinguishable mechanisms.[Formula: see text]or[Formula: see text]and[Formula: see text]or[Formula: see text]The rate constants and their corresponding activation energies were determined in the limiting case where one of the elementary steps in each pair is involved alone in the kinetics of reaction.[Formula: see text]The rate constants for hydrolysis of the monochlorinated cyanuric acid derivatives were derived from our experimental values. Keywords: kinetics, N-chlorination, 1,3,5-triazine-2,4,6-trione, aqueous medium, stopped flow.