Ferrous Sulfate Pharmaceutical Grade Product Name :Ferrous Sulfate Pharmaceutical Grade CP2010/BP2009 Ferrous Sulfate Molecular formula: FeSO4. 7H2O CAS: 7782-63-0 EINECS No.: 238-676-6 Appearance:Light blue green crystal Properties: Glaucous crystallization. The relative density 1.897, melting point °C into four 64 when water and salt, salt water into °C when 65. In the wet air oxidation as alkali type sulphuric acid easy high iron into yellow. Soluble in water, insoluble in alcohol. Aqueous easy oxidation. Use: Analytics reagents. DTC, polymerization catalysts. Also used in photoengraving, medium preparation. D etails: Item Standard Appearance Conform PH 3.0~4.0 Subsulfate Conform Heavy Metals ≤0.002% Arsenic (As) ≤0.0002% Assay FeSO4•7H2O 98.5~104.0%