Dried Ferrous Sulphate

MOLECULAR FORMULA :- FeSO4

MOLECULAR WEIGHT :- 151.91 g/mol

SPECIFICATION IP BP USP
Description Grayish white to buff colored powder. Grayish white powder. Grayish white powder.
Solubility Slowly but freely soluble in water. Very soluble in boiling water, practically insoluble in ethanol (96%)
pH 3.0-4.0
Identification

(A)   Reaction

(B)   Reaction

(C)   Assay

A.   Reaction of sulfates

B.    Reaction of Ferrous Salt

A.   Reaction of sulfates

B.    Reaction of Irons

C.    It complies with limit of assay.

A.   Reaction of sulfates

B.   Reaction of Ferrous Salt

 

Chloride NMT 300 ppm
Insoluble Substances NMT 0.05 %
Basic sulphate Producing solution that is not more than faintly turbid.
Arsenic NMT 3 ppm NMT 3 ppm
Lead NMT 50 ppm NMT 10 ppm
Mercury It meets the requirements of the test for mercury
Chromium NMT 100 ppm
Copper NMT 50 ppm NMT 50 ppm
Ferric ions NMT 0.5 %
Manganese NMT 0.1 % NMT 0.1 %
Nickel NMT 100 ppm
Zinc NMT 500 ppm NMT 100 ppm
Organic volatile impurities Meets the requirements.
Residual Solvents Meets the requirements.
Assay     86.0 %  – 90.0 % 86.0 %  – 90.0 % 86.0 %  – 89.0 %