Properties and test methods | Unit | Typical Value |
Porosity | ml/g | ≥1.0 |
pH value (5% in water) | 6.0-8.0 | |
Loss on drying (2 hours at 105 °C) | Wt% | ≤ 5.0 |
Loss on ignition (2 hours at 1000 °C) | Wt% | ≤ 12.0 |
Particle size(D50) | μm | 7.5-8.0 |
Oil absorption (DBP) | g/100g | 150-200 |
Content of SiO2 (Dry basis) | Wt% | ≥ 99.0 |
Whiteness | ≥ 93.0 | |
Surface treatment | Special |