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Mineral fertilizer 1.classification:sulphate. 2.lower heavy metal level. 3.other name:zinc sulphate. Products name: mineral fertilizer. Appearance : white powder. Used as lithophone and zinc. Salt, also used in synthetic fiber industry, zinc plating, pesticides,feed additive. Classification: sulphate. Basic information. Molecular formula. Znso4.h2o. Casno. 7446-19-7. Hs code. 2833293000. Grade. Industrial grade. Appearance. White powder. Hg. /t2326-2005. Phsical information. Mol weight. 179.45. Odour. Odourless. Melting point. It loses water at 30 degree c to give the hexahydrate and more water is lost at 70 degree c to form the monohydrate. The anhydrous salt forms at 280 degree c. Boiling point. 740 c (decomposes). Density. 3.28. Item. Unit. Specification. Zn content. %min. 35. Specification. Pb. Ppm max. 10. As. Ppm max. 5. Cd. Ppmmax. 10. Use. Znso4 is mainly used as raw made of ... For the production of lithopone and zinc salts. It is also used in synthetic fiber industry, zinc plating, pesticides, flotation, fungicide and water, purification. In agriculture, it is mainly used as feed additive and trace element fertilizer,, etc. Package. 20/25 kg bags with plastic woven bag, or 1250/1350 kg bags with inner bags on pallets or according to your request. Storage. Dry and hermetic.