|Properties||Unit||Typical Value||Testing Standard|
|Specific surface area(BET)||m2/g||380±30||GB/T 20020|
|pH in 4% dispersion||3.7～4.5||GB/T 20020|
|Loss on drying(2 hour at 105℃)||%||≤2.5||GB/T 20020|
|Loss on ignition(2 hour at 1000° based on material dried for 2 hours at 105℃)||%||≤2.5||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/L||40～60||GB/T 20020|
Uses and Applications
Reinforcing filler in elastomers
Rheology control and thixotropic agent
Anti-settling,anti-sagging, and thickening agent
Free flow aid and anti-caking aid for powders
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