NON FERRIC ALUM – SLABS
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 resinate that spreads evenly over the surface of paper.
It finds other uses in pharmaceutical and mordanting industry. In water purification the highly positively charged aluminum precipitates negative suspensions as sludge.
Specifications : As Per Standard
| 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 |