Ammonium Sulfate USP
Ammonium sulfate is the IUPAC-recommended spelling and ammonium sulphate in British English, (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% sulfur.
Ammonium sulfate is used 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. The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs.
Chemical Name: Ammonium Sulfate
Mol. Formula: (NH4)2SO4
Mol. Weight: 132.14 g/mol
CAS No: 7783-20-2
|Characters||It occurs as colourless or white crystals or granules|
|Solubility||Soluble in water, insoluble in alcohol|
|pH||5.0 to 6.0|
|Residue on Ignition||Not more than 0.005%|
|Limit of insoluble matter||Not more than 0.005%|
|Chloride||Not more than 5 go per g.|
|Phosphate||Not more than 5 μg per g.|
|Organic Volatile Impurities||Passes test|
|Iron||Not more than 5 μg per g.|
|Assay||Not less than 99% and more than 100.5%|
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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