| Item | Model : HL-150 | Model : HL-200 |
| Specific Surface Area(m2/g) | 150±25 | 200±25 |
| Suspension in Water PH (4%) | 3.6~4.5 | 3.6~4.5 |
| Loss after Drying 105°c (m/m%) | ≤1.5 | ≤1.5 |
| On Ignition 1000°c (m/m%) | ≤2.5 | ≤2.5 |
| Residue on Sieve 45μm (m/m%) | ≤0.05 | ≤0.05 |
| Apparent Density (g/l) | 25~60 | 25~60 |
| SiO2 (m/m%) | ≥99.8 | ≥99.8 |
| Carbon (m/m%) | ≤0.2 | ≤0.2 |
| Fe2O3 (m/m%) | ≤0.003 | ≤0.003 |
| Al2O3 (m/m %) | ≤0.05 | ≤0.05 |
| Titanium Trioxide (m/m %) | ≤0.03 | ≤0.03 |
