Ferrous sulfate heptahydrate reagent grade 99.8%, China Ferrous sulfate heptahydrate reagent grade 99.8% Supplier,Factory

Ferrous sulfate heptahydrate reagent grade 99.8%

Tianjin Flourish Chemical Co., Ltd. [China]

ferrous sulfate molecular formula: FeSO4.7H2O CAS: 7782-63-0 Appearance:Light blue green crystal

ferrous sulfate

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.

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