Copper sulfate

Trade name(s) Copper Sulfate, Blue Stone

Manufacturer(s) Chem One Limited, Griffin, Phelps Dodge, Nufarm

Formulation(s) 25% crystals; also available impregnated in clay and as liquid.

Remarks Used primarily to control algae in impounded waters, lakes, ponds, reservoirs, and irrigation systems.

Water solubility Very soluble

Storage conditions Stable when kept dry.

Acute toxicity LD50 - 470 mg/kg

Action in plant Causes imbalance of copper with other enzyme metal cofactors, resulting in enzyme blockage.

Site of action Plant cells

Chemical family Inorganic