Description Manganese Dioxide, Reagent, 99.8%, 500gFor Research & DevelopmentNot for drug, human, animal, or food use Certificate of Analysis:Appearance (Color) Dark grayAppearance (Form) Crystalline powderAssay (Titration) 99.8%Identification Passes TestsInsoluble in HCl 0.02%Chloride 0.005%Nitrate <0.05%Sulfate 0.02%Iron 0.03% CAS: 1313-13-9 FORMULA: MnO2