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                                        Zinc sulfate

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                                        Product Name Zinc sulfate
                                        Molecular formula ZnSO4·H2O,ZnSO4·7H2O
                                        Molecular weight 1Monohydrate: 179.49; Heptahydrate: 287.58
                                        CAS NO. Monohydrate: 7446-19-7; Heptahydrate: 7446-20-0
                                        Performance It is colorless or white crystalline powder, odourlessness. 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 harmfulless, lose crystal water in 280℃.
                                        Use It is used as food additives, animal feed, printing and dyeing, timber preservative.Used as analytical reagent.
                                        Package It is packed with polyethylene bag as liner and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
                                        Storage and transport: It should be stored in a dry, ventilative and clean warehouse; kept away from moisture and heat and stored separately from poisonous substances. Handled with care, so as to avoid damage to packing bags.

                                         

                                        Quality Index GB25579-2010
                                        Color Colorless or white
                                        Content     % ZnSO4.H2O 99.0-100.5
                                        ZnSO4.7H2O 99.0-108.7
                                        As    ≦% 0.0003
                                        Alkali metal ≦% 0.5
                                        Acidicty Pass test
                                        Se      ≦% 0.003
                                        Hg     ≦% 0.0001
                                        Pb     ≦% 0.0004
                                        Cd     ≦% 0.0002

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