Self-Produced and Self-Sold High-Quality Industry Grade Znso47H2O 99% Zinc Sulphate

Product Name: Self-Produced and Self-Sold High-Quality Industry Grade Znso47H2O 99% Zinc Sulphate Model NO.: sulfate-7-2 Grade Standard: Industrial Grade Appearance: White Crystal Type: Zinc Sulfate Purity: ?99% Certification: CCIC, CIQ, RoHS, ISO CAS No.: 7446-20-0 CAS: 7446-20-0 Trademark: Sunway Transport Package: 25kg/Bag Specification: 80mesh Origin: China HS Code: 28332930 Product Description 1. Chemical Name: Zinc sulfate2.Molecular Formula: ZnSO4·7H2O,3.Molecular Weight: 287.54(Heptahydrate)4.CAS: 7446-20-0(7H2O)5.Character: It is colorless or white crystalline powder, odorlessness. Efflorescence in air. Acid hydrometer is 1.957(25/4) to litmus. Melting point is 100. It's soluble in water and glycerol,insoluble in ethanol and light toxicity, lose crystal water in 280.6.Usage: It is used as food additives, animal feed, printing and dyeing, timber preservative.Used as analytical reagent.7.Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.8.Storage and Transport: It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore,it should be stored separately from poisonous substances.IndexSpecificationGB25579-2010FCC,1996contentw/% ZnSO4.H2OContentZnSO4.H2O99.099.0ZnSO4.7H2OZnSO4.7H2O99.099.0(As), mg/kg ≤As0.0003--alkali metal w/%≤Alkali metal0.500.5acidityPHpass testnormal(Se), mg/kg ≤Se0.0030.003(Hg), mg/kg ≤Hg0.00010.0005(Pb),mg/kg ≤Pb0.00040.001(Cd),mg/kg ≤Cd0.00020.0005