... , phosphorus, heavy metallic ions and COD, BOD removing; Used as pigment, medicine, catalyst and mordant agent.Product Characteristics: Comparing with other ... and efflorescence.MAIN APPLICATIONS: Used for agricultural pesticide, fertilizer, feed, pigment , catalyst, decontaminant, antisepticsand magnetic material etc.Ferrous Sulfate:ItemsIndexesFeSO4.7H2O ...