Ferrous sulphate is a chemical compound with formula(FeSO4),known since ancient times as copperas.it is most commly encountered as the blue-green heptahydrate.Ferrous sulphate is added to the cooling water flowing throughth the brass tubes of a turbine condenser.It forms a corrosion-resistant,provective coating on the inside of the tube.It has been applied for the purification of water by flocculation and for phosphate removal in municipal and industrial sewage treatment plants to prevent eutrophication of surface of water bodies.
FERROUS SULPHATE CRYSTAL FORM (DRY)
Colour
Blue-Green
pH
2.77
IRON AS Fe
19.90
FeSO4 7H2O
(percent by mass)
98.0
Free Acid as H2SO4
(Percent by mass)
NIL
MOISTURE CONTENT
(Percent by mass)
0.5
FERROUS SULPHATE HEPTAHYDRATE
Grade
Drier Powder
Characteristics:
pH (5% of slurry)
3.10 min.
moisture % by mass
0.40 max.
Iron, %, by mass
19.90 min.
Purity as FSH, % by mass
98.80 min.
Ferric Iron, % by mass
0.15 max.
Free Acid, % by mass
0.25 max.
FERROUS SULPHATE (HEPTAHYDRATE)
Assay
98%
Iron (111) as salt
0.05%
Moisture
0.1%
PH of 5% soln
Bet 3 of 3.5
FERROUS SULPHIDE LUMPS
DESCRIPTION
GREYISH BLACK LUMPS
FeS CONTENT
78 to 83 %
SULPHUR CONTENT
28 to 30 %
SIZE
1.00 cm to 7.00 cm In width X Length
FERROUS SULPHATE
[MONOHYDRATE]
Description
Greyish White Powder
Ferrous Sulphate
86 to 88 %
Iron Content
30 to 31 %
Chloride
0.008 % Max.
Zinc & Arsenic
NIL
Lead
0.004 % Max.
Loss on drying
1 to 3 % Max.at 105o C
Water Insolubles
0.1 % Max.