N-METHYL-P-AMINOPHENOL (METOL) OZONATION IN AQUEOUS SOLUITON: KINETICS, MECHANISM AND TOXICOLOGICAL CHARACTERIZATION OF OZONIZED SAMPLES

摘要

The ozonation of metol, one of the main constituents of photographic developers, has been studied in aqueous soluiton in the pH range 2.0-7.0. Main reaction mechanisms have been assessed on the basis of observed reaction intermediates and products at varying pH of the solutionj The effect of manganese addition--Mn~II ions or soild MnO_2--to thue reacting system has also been evaluated.