Light yellow to white powder or granular Main content:97% min Granular size 6-14mesh, 14-20mesh, 20-60mesh, Product Name Ferrous sulphate monoChemical FormulaFeSO4.1H2OCAS NUMBER17375-41-6PropertiesLight yellow to white powder or granular SPECIFICATIONS AppearanceLight yellow to white powder or granularMain content97% minIron ( Fe )31% minArsenic ( As ) 5ppm maxLead ( Pb )15ppm maxCd10ppm max ...