MSMA

Trade name(s) Arsonate, Daconate, Trans-Vert, Bueno

Manufacturer(s) Platte, Syngenta

Formulation(s) 4 to 8 lb/gal soluble concentrate

Remarks An organic, arsenic compound used as a selective, contact herbicide applied postemergence. Results are best when air temperature is above 80°F.

Water solubility Very soluble

Storage conditions Stable under moderate conditions.

Acute toxicity LD50 - 1,359 mg/kg

Action in plant Unknown

Site of action Group 17: not well understood

Chemical family Organoarsenical

Koc Average is 7000 mL/g (estimated). Sand 250 mL/g; silty loam 2850 mL/g; silty clay 1170 mL/g; sandy loam 2190 mL/g