zinc sulfate heptahydrate Chemical fiber grade

Molecular formulaZnSO4 7H2O Molecular weight 287.56 Physical and chemical property White or slight-yellow crystal, loose and no agglomeration, easy soluble in water and slightly dissolvable in alcohol and glycerol, insoluble in liquid ammonia and ketone, tending to lose water molecules of hydration in dry air and become white powder appearance. When the temperature is 280, it will become no water substance and lose all crystal water. When the temperature is above 500, it will decompose. Relatively density: 1.975 Melting point: 100 Use: It's mainly used as raw material for zinc salts, electroplate industry, and also used as antisepticise of wood, leather preservation, bone glue fine and preservation and dye stuff in printing and dyeing. Characteristic and function High purity, equal crystal and easy soluble. Low content of heavy metal, Fe, Pb and Cd meet with national standard. Packaging and transportation Plastic woven bag lined with plastic film bag. Standard net weight:25kg or as customers requirement. Avoid moisture during the transportation and store. ITEM INDEXTypePremium GradeGrade IZn%22.5122.28ZnSO4 7H2O %9998Water insoluble%0.0200.020Pb%0.0010.002Fe%0.0030.005Cd%0.0010.002