Description Potassium Persulfate, ACS, 99+, 500g For Research & Development Not for drug, human, animal, or food use Specifications: Assay 99+% Insoluble <0.005% Chloride Compounds (as Cl) <0.001% Heavy metals (as Pb) <0.001% Iron <0.0005% Manganese <0.0002% CAS: 7727-21-1 FORMULA: K2S2O8