Properties | Unit | Typical Value | Testing Method |
Silica Content(Based on ignited material) | % | ≥99.8 | GB/T 20020 |
PH value in 4% dispersion | - | 3.9~4.5 | GB/T 20020 |
Specific Surface Area(BET) | m2/g | 200±20 | GB/T 20020 |
Loss on drying(2 hours at 105ºC) | % | ≤2.0 | GB/T 20020 |
Loss on ignition (2 hours at 1000ºC) (based on material dried for 2 hours at 105ºC) | % | ≤2.0 | GB/T 20020 |
Sieve Residue(45μm) | % | ≤0.04 | GB/T 20020 |
Tamped Density (Based on material dried at 105ºC for 2 hours) | g/L | 40~60 | GB/T 20020 |