Product Details

Product Description

molecular formula: FeSO₄·7H₂O

CAS: 7782-63-0

Appearance:

Light blue green crystal

Properties:

Glaucous crystallization. The relative density 1.897, melting point ℃ into four 64 when water and salt, salt water into ℃ 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.

Details:

Test item	Specification
Test item	Reagent grade	Pharmaceutical grade
Appearance	Conform	Conform
Assay /%	≥99.0-101.0	≥98.0-101.0
Water insoluble /%	≤0.005	≤0.02
Chloride (Cl)/%	≤0.001	≤0.005
N/%	≤0.001	-
Phosphate (PO₄)/%	≤0.0005	≤0.002
Arsenic (As)/%	≤0.0002	≤0.0002
Manganese (Mn)/%	≤0.05	-
Ferric (Fe)/%	≤0.02	≤0.10
Copper (Cu)/%	≤0.002	≤0.01
Zinc (Zn)/%	≤0.005	≤0.02
Lead (Pb)/%	≤0.002	≤0.005
Ammonia not sediment /%	≤0.05	≤0.2

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