Zinc Sulphate (Heptahydrate/ monohydrate)

Properties: Molecular formula: ZnSO 4 . H 2 O Molecular weight : 179.56 or ZnSO 4 . 7H 2 O Molecular weight : 287.56 white or slight yellow crystal or powder . efflorescence to white powder . dehydrated in 280 , decompoed in 500 . relative density 1.975 . melting point 100 . Standard: Company standard HHXPQB-SSX-2005 Technical index : % m/m Itemmedicinefeedstuffplatingmineral separationfertilizerindustrygrade( ZnO) Main assay (ZnSO 4 . H 2 O)≥ (ZnSO 4 . 7H 2 O)22-2397-9922-2397-9922-2397-9921-2294-9621-2294-9619-2092-94PH 50g/l solution ≤ 3.03.03.05.05.0chloride ( Cl ) ≤ 0.2-0.60.2-0.60.2-0.6 0.6-1.00.6-1.01.0-1.5Mn ≤ 0.01-0.10.01-0.10.01-0.10.01-0.10.01-0.10.01-0.1Arsenic As ≤ 0.00050.0005Fe ≤ 0.0050.0050.02-0.060.06-0.10.06-0.10.2-0.5Pb ≤ 0.0010.0010.01-0.050.01-0.050.01-0.050.1-0.5Cd ≤ 0.01-0.050.01-0.050.01-0.050.1-0.5Cu ≤ 0.002-0.0050.002-0.0050.01-0.020.01-0.020.01-0.020.1-0.5Uses: 1 , emetic, supplement, displacement agent 2 , zinc supplement and pesticide; 3 , industrial material ; mordant agent of printing and dyeing, preserv agent;water treatment agent; mineral separation agent zinc sulfate two-layer packing, internal packing is PE bag , external packing plastic woven bag, Net Wt. 50kg . It should ve protected by covers when transportation , avoid rain, moisture, or mixed with acid / alkali matter and color matter; packed in dry and airiness place, no contact with acid and alkali and color matter