Aluminium Sulphate USP

Aluminium sulfate is a chemical compound with the formula Al2(SO4)3. It is soluble in water and is mainly used as a coagulating agent.


Uses / Applications:
Aluminium Sulphate is mainly used as a flocculating agent in the purification of drinking water and waste water treatment plants. It is also used to precipitate protein during the beer brewing process. It is also added to pickled vegetables as an antibacterial agent.


Chemical Name: Aluminium Sulfate
Mol. Formula: Al2(SO4)3
Mol. Weight: 342.14 g/mol
CAS No.: 10043-01-3


General Specifications

Test Specification…….USP
Characters White crystalline powder, shiny flakes or crystal fragments. It is stable in air.

Test A


A solution (1 in 10) responds to the tests for Aluminum and for Sulfate

Solubility Freely soluble in water; insoluble in alcohol.
pH Not less than 2.9
Limit of Alkalies and alkaline earths Not more than 0.4%
Limit of Ammonium salts Specified Test. The odor of ammonia is not perceptible.
Iron Specified Test. No blue color is produced immediately.
Residual solvents Meets the requirements
Assay Not less than 54.0% and not more than 59.0%


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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We observe WHO Good manufacturing practice and Good laboratory practice.

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