Ammonium Alum


Ammonium alum or Ammonium Aluminium Sulfate is a white crystalline double salt with the chemical formula  (NH4)2Al(SO4)2 . 12 H2O. It is also known by the name Tschermigite. 

Production and Uses

> Prepared by mixing Aluminium Hydroxide, Sulfuric acid and Ammonium Sulfate. 

> Ammonium alum is a useful laboratory reagent. It is not widely used in industries but due to its cheap price, it invites many niche applications. 

> Common Ingredient in mosquito repellant sprays.

> Used in water purification, vegetable glues, porcelain cement, deodorants, tanning, dyeing and fireproofing textiles. 

CAS number : 7784 – 26 – 1 {dodecahydrate}

Chemical Formula : (NH4)2Al(SO4)2 . 12 H2O

Molecular Weight : 453.33 g/mol {dodecahydrate}

Packaging : 25/50 kg bags, HDPE bags with polyliner inside

Storage : Tightly packed containers.