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Ferrous Sulphate Heptahydrate Specification
Product Identification and Use
Chemical formula | FeSO4.6-7H2O |
| Identification | CAS Nr. 7720-78-7 |
| Process | Ferrous sulphate is a by-product from the production of titanium dioxide or from the production of steel. For use as feed-ingredient this ferrous sulphate is being dried or treated with anti-caking to ensure stability and free-flowingness. |
Chemical characteristics (typical)
Fe | 19.5 % | Cd | < 0.1 ppm |
Mg | 0.7 % | Cu | < 1 ppm |
Ca | 0.3 % | Cr | < 10 ppm |
SO4 | 0.4 % | Ni | < 50 ppm |
Insolubles |
| Zn | < 30 ppm |
in water | 0.6 % | Pb | < 5 ppm |
|
| Hg | < 0.1 ppm |
Product Identification
Chemical formula | FeSO4.(1)H2O |
| Identification | CAS Nr. 7720-78-7 |
| Process | Ferrous sulphate is a by-product from the production of titanium dioxide or from the production of steel. For use as feed-ingredient this ferrous sulphate is being dried or treated with anti-caking to ensure stability and free-flowing properties. |
Chemical characteristics (typical)
Fe | 29.5/30 % | As | < 0.25 ppm |
Mg | 0.9 % | Cd | < 0.03 ppm |
Mn | 0.08 % | Cu | < 2 ppm |
Ti | 0.4 % | Cr | < 20 ppm |
Insolubles |
| Hg | < 0.05 ppm |
in water | 0.6 % | Pb | < 2 ppm |
|
| Zn | < 100 ppm |
Physical properties (typical)
Apperent density | 1.2 - 1.4 kg/dm³ |
Appearance | dried powder or fine granular |
Colour | greyish |
APPLICATION OF FERROUS SULPHATE
Nutrition
Ferrous sulfate is used to treat iron-deficiency anemia. Side effects of therapy may include nausea and epigastria abdominal discomfort after taking iron. These side effects may be minimized by taking ferrous sulfate at bedtime.Ferrous sulfate is also used to fortify various foods with iron, for example, the enriched corn meal in Cheetos
Colouring
Ferrous sulfate is used in the manufacture of inks, most notably iron gall ink, which was used from the Middle Ages until the American Revolution. It also finds use in wool dyeing as a mordant, and in water purification as a substitute for aluminium sulfate.
Two different methods for the direct application of indigo dye were developed in England in the eighteenth century and remained in use well into the nineteenth century. One of these, known as china blue, involved iron(II) sulfate. After printing an insoluble form of indigo onto the fabric, the indigo was reduced to leuco-indigo in a sequence of baths of ferrous sulfate (with reoxidation to indigo in air between immersions). The china blue process could make sharp designs, but it could not produce the dark hues of other methods.Ferrous sulfate can also be used to stain concrete a yellowish rust color. Woodworkers use ferrous sulfate solutions to color maple wood a silvery hue
Other uses
In horticulture it is used as a lawn conditioner and moss killer.In the second half of the 19th century, Ferrous Sulfate was also used as a photographic developer for Collodion process images.Ferrous sulphate is sometimes added to the cooling water flowing through the brass tubes of a turbine condenser. It forms an erosion-resistant, protective coating on the inside of the tube.
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U.P.Chemicals
Gill Road
Ludhiana, Punjab 141003
India
ph: 0161-2543427
fax: 0161-2538481
info