Serves as the microanalytical reagent, the mordant and the paint drying agent. Name:Manganese sulfate Molecular formula:MnSO4·H2O Molecular weight:169.01 Specification: Reagent grade Standard:GB/T15899—1995 Appearance:Pale pink crystalline powderTest itemTest StandardAssay99.0%Water-insoluble0.005%Chloride0.002%Iron0.0005%Nickel0.002%Zinc0.02%Heavy metal0.002%Hydrogen sulfide not precipitate0.25%potassium permanganate-reducingTo pass test