Question

Difference between ferric and non ferric alum in water treatment

Answer 1

A)Ferric alum-
1.ferric alum is Ammonium iron sulphate
2.The raw material used is bauxite.
3.has about 0.5% of insoluble matter

B)Non ferric alum-
1.its the purer form of Ammonium sulphate
2.The raw material used is aluminium trihydrate
3.has about 0.2 to 0.3% of insoluble matter