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COPPER SULFATE PENTHYDRATE. - 4 containers cif St. Petersburg PARAMETERS: CAS No. 7758-99-8, CHEMICAL FORMULA CUSO4 * 5H2O> 98.0%, CU> 25.00%. USED IN ENRICHMENT OF POLYMETALLIC ORE, IS NOT A PRODUCTION WASTE AND A FOOD ADDITIVE Zinc Sulphate Monohydrate - 4 containers cif St. Petersburg Zinc Sulphate Heptanhydrate - 4 containers cif St. Petersburg Active zinc oxide - 4 containers cif St. Petersburg