... : CHINASPECIFICATION: ITEMINDEXAppearanceGreen to glaucous crystal or powderPurity as FeSO4.7H2O, %, minimum98.0Purity as Iron (Fe),%, minimum19.7Lead (Pb), mg/kg ... , maximum0.002Arsenic (As) ,mg/kg, maximum0.0005Cadmium (Cd), mg/kg, maximum0 ... run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Ferrous Sulfate Heptahydrate (FeSO4.7H2O)