Ammonium Sulfate

Ammonium Sulfate


Inorganic Chemical Compound
Ammonium sulfate is an inorganic chemical compound with the formula (NH₄)₂SO₄. It appears as a white crystalline solid that is highly soluble in water. The compound is mildly acidic in nature and is commonly used as a nitrogen-rich fertilizer.


It is commercially produced by reacting ammonia with sulfuric acid. Ammonium sulfate is widely used in agriculture, chemical manufacturing, food processing, pharmaceuticals, and water treatment industries.


Physical & Chemical Properties

Formula

(NH₄)₂SO₄

Concentration

≥ 99%

Appearance

White crystalline

pH

-

Ammonium Sulfate

Product Specifications
Specifications Range
Moisture (% by wt.) 1% max.
Ammoniacal Nitrogen (% by wt.) 20.5% min.
Arsenic (as As₂O₃) (% by wt.) 0.01% max.
Free Acidity (as H₂SO₄) (% by wt.) 0.025% max.
Sulphate Sulphur (as S) (% by wt.) 23% min.

Ammonium Sulfate

Ammonium Sulfate Applications

Agriculture Industry

Ammonium sulphate is extensively used as a nitrogen and sulphur fertilizer. It improves soil fertility, enhances crop yield, and is particularly effective for sulphur-deficient soils and alkaline soil conditions.

Food Industry

In the food industry, ammonium sulphate is used as a dough conditioner and acidity regulator. It aids yeast fermentation and improves texture and consistency in bakery products.

Chemical Industry

In the chemical industry, ammonium sulphate is used as a raw material and intermediate in the production of various chemical compounds. It is also applied in specialty chemicals and industrial processing operations.

Water Treatment

Ammonium sulphate is used in water and wastewater treatment as a source of ammonia for chloramination. It helps improve disinfection efficiency and control by-product formation.

Pharmaceutical Industry

Ammonium sulphate is used in pharmaceutical and biotechnology applications, especially in protein purification and precipitation processes. It supports controlled separation and formulation techniques.

Textile Industry

In textile processing, ammonium sulphate is used during dyeing and finishing operations. It helps maintain pH balance and improves dye absorption and color uniformity.

Laboratory

In laboratory settings, ammonium sulphate is commonly used for protein fractionation, buffer preparation, and analytical research in biochemical and molecular biology studies.

Fire Fighting & Safety

Ammonium sulphate is used as a component in dry chemical fire extinguishing powders. It contributes to effective fire suppression in industrial and commercial safety applications.