Non-Ferric Alum is used in all thermal power plants for water purification. Other applications include cleaning of swimming pool water, drinking water & etp plants.
Non-ferric alum imparts better brightness to paper when used with rosin for sizing. It forms a complex resonate that spreads evenly over the surface of paper.
It finds other uses in pharmaceutical industry. In water purification the highly positively charged aluminium precipitates negative suspensions as sludge.
|Sr. No.||Specifications||Tech Grade||Pure Grade|
|1||INSOLUBE MATTER % BY MASS, Max||0.3||0.02|
|2||SOLUBLE IRON COMPOUND AS Fe % BY MASS, Max||0.01||0.004|
|3||WATER SOLUBLE ALUMINIUM COMPOUNDS (As Al2O3) % BY MASS, Min||17||16.6 – 17.6|
|4||pH of 5% aqueous solution, Min||2.8||2.9|