AbstractThe hydrolysis of atrazine in aqueous fulvic acid solution followed first‐order kinetics with respect to the herbicide concentration. The half‐life of atrazine, calculated from first‐order plots, was lowest at low pH and increased as the pH of the reaction mixture increased. Increase in fulvic acid concentration resulted in a higher hydrolysis rate constant and a shortened half‐life but had no effect on the activation energy. However, the latter increased with increase in pH of the reaction mixture. The only product identified after hydrolysis in fulvic acid solution was 2‐ethylamino‐4‐hydroxy‐6‐isopropylami
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