Vinipul Inorganics Pvt. Ltd.

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Ammonium Sulphate (NH4)2SO4, is an inorganic salt with a number of commercial uses. The most common use is as a soil fertilizer. It contains 21% nitrogen and 24% sulphur. The primary use of ammonium sulphate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth.It is also used as an agricultural spray adjuvant for water-soluble insecticides, herbicides, and fungicides. There, it functions to bind iron and calcium cautions that are present in both well water and plant cells.

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Specification of Ammonium Sulphate (Pure)

Sr. No Parameters Unit Specified value
1 Appearance Visual observation A white crystalline  powder, free flow
2 Solubility 10% solution in water % w/v Clear & colourless solution 
3 pH of 5% solution % w/v 5.0 – 6.0
4 Assay  (on dried basis) % w/w Min. 99.0%
5 Chloride (as Cl) % w/w Max. 0.005%
6 Iron (as Fe) % w/w Max. 0.002 %
7 Heavy metals (as Pb) % w/w Max. 0.001 %
8 Moisture % w/w Max.  0.5 %

Specification of Ammonium Sulphate (Technical)

Sr. No Parameters Unit Specified value
1 Appearance Visual observation Almost white or a white crystalline  powder
2 Solubility 10% solution % w/v Clear solution in water
3 pH of 5% solution % w/v 4.5 – 6.5
4 Assay  (on dried basis) % w/w Min. 98.0%
5 Chloride (as Cl) % w/w Max. 0.02%
6 Iron (as Fe) % w/w Max. 0.01 %
7 Moisture % w/w Max. 1.0 %

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