Looking for aluminium oxide.APPEARANCE white powder Al2O3 99.0% min SiO2 100ppm max Fe2O3 100ppm max Na2O 0.5% max LOSS ON DRYING 0.5% max PARTICLE SIZE 96%, 92%, 1-5% (Mesh 325) Surface area (m2/g): >;=300, 60 - 80, 9 - 15, 0.3 - 0.6Country:Indonesia