1.Features: 1) Made from pure raw material 2) Used for drinking water treatment and paper mills as retention agent 3) Appearance: Solid powder, white 4) Al2O3: 29% (min. ) 5) Basicity: 50.0% 85.0% 6) Insolubles: 0.5% (max. ) 7) pH (1% water solution): 3.5 5.0 8) SO42-: 3.5% (max. ) 2.Packing: 25kg/polypropylene woven bags with inner plastic bag