Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Properties of sulfometuron methyl affecting its environmental fate: aqueous hydrolysis and photolysis, mobility and adsorption on soils, and bioaccumulation potential

Journal Article · · J. Agric. Food Chem.; (United States)
DOI:https://doi.org/10.1021/jf00064a009· OSTI ID:6899442

(phenyl-/sup 14/C)Sulfometuron methyl is stable in water at pH 7 or 9, but hydrolyzes readily (half-life 2 weeks) to (/sup 14/C)methyl 2-(aminosulfonyl) benzoate and (/sup 14/C)1,2-benzisothiazol-3-one, 2,3-dihydro 1,1-dioxide (saccharin), at pH 5.0. (/sup 14/C)Sulfometuron methyl was completely photolyzed to /sup 14/CO/sub 2/ under aquatic photolysis conditions. (/sup 14/C)Methyl benzoate was identified as an intermediate in this photolytic degradation. (/sup 14/C)Sulfometuron methyl was mobile on soils when tested using soil thin-layer plates and soil columns; this mobility agreed reasonably well with Freundlich soil isotherm constants. (/sup 14/C)-Sulfometuron methyl has a low partition ratio (0.31) between n-octanol and 0.01 M phosphate buffer, pH 7.0. It does not accumulate in fish tissue when fish are exposed to 0.01 ppm or 1.0 ppm (/sup 14/C)-sulfometuron methyl in their environment.

Research Organization:
E.I. du Pont de Nemours and Co., Inc., Wilmington, DE
OSTI ID:
6899442
Journal Information:
J. Agric. Food Chem.; (United States), Journal Name: J. Agric. Food Chem.; (United States) Vol. 33:6; ISSN JAFCA
Country of Publication:
United States
Language:
English