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Properties | Unit | Typical Value | Testing Standard |
Specific surface area(BET) | m2/g | 200±20 | GB/T 20020 |
pH in 4% dispersion | 3.9~4.5 | GB/T 20020 | |
Loss on drying (2 hour at 105℃) | % | ≤2.0 | GB/T 20020 |
Loss on ignition (2 hour at 1000° based on material dried for 2 hours at 105℃) | % | ≤2.0 | GB/T 20020 |
Sieve residue(45μm) | mg/kg | ≤250 | GB/T 20020 |
Silica content ( Based on ignited material) | % | ≥99.8 | GB/T 20020 |
Tamped density (based on material dried for 2 hours at 105℃) | g/dm² | 40~60 | GB/T 20020 |








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