China Bensulfuron-Methyl Herbicide Agricultural Chemicals

PHYSICAL CHEMISTRY
Composition: Tech. Is 96%.
Mol. Wt.: 410.4;
M. F.: C16H18N4O7S;
Form: White to pale yellow, odourless solid.
M. P.: 185-188C;
V. P.: 2.8x10-9 mPa (25C).
KOW: LogP = 2.45 (pH 1.5), 0.62 (pH 7) (both at 30C).
Henry: 1.4x10-11 Pa m3 mol-1
S. G. /density: 1.41;
Solubility: In water 2.9 (pH 5), 12 (pH 6), 120 (pH 7), 1200 (pH 8) (all in mg/l, 25C). In acetone 1.38, acetonitrile 5.38, dichloromethane 11.7, ethyl acetate 1.66, hexane >0.01, xylene 0.280 (all in g/l, 20C).
Stability: Aqueous solutions are most stable under slightly alkaline conditions (pH 8), and slowly degrade under acidic conditions; DT50 11 d (pH 5), 143 d (pH 7) (25C).
APPLICATION:
Control in paddy fields for annual and some perennial broadleaf weeds and sedge weeds; added security agents can be used in wheat field.