CHEMICALLY STABLE DISPERSIONS OF PROTHIOCONAZOLE AND PROCESSES FOR PREPARING THEM

摘要

Chemically stable aqueous dispersions of prothioconazole and processes for preparing them are provided. The dispersions comprise prothioconazole present in an aqueous medium, and a sulfur-containing compound present in an amount effective to render the dispersion chemically stable. The sulfur-containing compound is present in the dispersion in an amount effective to render the dispersion chemically stable as defined above. However, such amounts must be within government regulations for additives to agricultural treatment compositions. The compound must therefore be carefully chosen to be effective while maintaining government guidelines for maximum permissible amounts. Antioxidants such as ascorbic acid, tocopherols, and polyphenols were compared to the sulfur-containing compound used in the process of the present invention, and were found to be either ineffective or may require amounts in excess of government mandates when used without the sulfur-containing compound.