Ammonium aluminium sulfate

Ammonium aluminium sulfate

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Our huge range of products comprise Ammonium aluminium sulfate that is very popular in the market. These chemicals are processed using the best and innovative techniques in order to ensure their supreme quality. Owing to nontoxic nature, these chemicals are used in water purification, vegetable glues. porcelain cements, deodorants & tanning products, dyeing and fireproofing textiles. These chemicals are safe to handle and use as no human or ecological toxins have been registered. Owing to its high usage as a laboratory reagent, Ammonium aluminium sulfate has a high demand in the global market.



Accurate composition


Longer shelf life

High utility


CAS number - 7784-25-0 , 7784-26-1 (dodecahydrate)

ChemSpider - 2297489 , 56419 (dodecahydrate)

EC number - 232-055-3

RTECS number – WS5640010

Molecular formula - (NH4)Al(SO4)2

Molar mass - 237.15 g/mol (anhydrous) 453.33 g/mol (dodecahydrate)

Appearance - White crystals

Density - 2.45 g/cm3 (anhydrous) 1.64 g/cm3 (dodecahydrate)

Melting point - 93.5 °C (dodecahydrate)

Boiling point - 120 °C dehydr. (dodecahydrate)

Solubility in water - 15 g/100 ml (20 °C, dodecahydrate)

Other details:

Production and basic properties

Ammonium alum is made from aluminium hydroxide, sulfuric acid and ammonium sulfate. It forms a solid solution with potassium alum. Pyrolysis leaves alumina. Such alumina is used in the production of grinding powders and as precursors to synthetic gems.


Aluminium sulfate, closely related to ammonium alum, is nontoxic with an of 6207 mg/kg.