Alumina Ferric By Dev Alums & Chemicals

Alumina Ferric is a technical form of Aluminium Sulphate. It is also known as cake or patent alum. It is widely used for tanning of leather, sizing of paper, water purification, manufacture of lake pigments, antiperspirants, agricultural pesticides, aluminium resinate and other aluminium salts, clarifying oils and fats, treating sewage, water proofing concrete, fire-proofing & waterproof of cloth and deodorizing and decolorizing petroleum products.

The material shall essentially be Aluminium Sulphate Octadecahydrate [Al2(SO4)3.18H2O]. The article of commerce usually contains 5 to 10 percent less water than the theoretical amount. It shall be in the form of a coarse powder (kibbled) or slabs. The color of the material shall be cream to brown.