



| Item | Unit | Technical specification | |
| Particle siza | mm | 3-5 | 4-6 |
| AL2O3 | % | ≥93 | ≥93 |
| SiO2 | % | ≤0.08 | ≤0.08 |
| Fe2O3 | % | ≤0.04 | ≤0.04 |
| Na2O | % | ≤0.4 | ≤0.4 |
| loss on ignition | % | ≤6.0 | ≤6.0 |
| Bulk density | g/ml | 0.65-0.75 | 0.65-0.75 |
| Surface area | m²/g | ≥180 | ≥180 |
| Pore volume | ml/g | ≥0.40 | ≥0.40 |
| Water absorption | % | ≥60 | ≥60 |
| Crushing strength | N/particle | ≥110 | ≥130 |