Item Standard Specific surface area (BET) m2/g 100±15 Tamped density g/l Approx 55 Moisture ( hours at 105℃) % ≤5 Ignition loss (2 hours at 1000, based on material dried for 2 hours at 105℃) % ≤3 pH 4.5-5.5 Al2O3 content (Based on ignited material) % ≥99
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