Features:The high purity silicon dioxide with low surface action and used in silicon rubber to get good strong performance.
Application range:silicon rubber
CAS No.:112926-00-8(7631-86-9)
EINECS No.:231-545-4
Technical parameters
Specification | TOND-200 |
Appearance | white tousy powder |
Heating loss(105°C) % | 4.5-6.5 |
Loss on ignition(1000±25°C) % | 4.0-6.0 |
SiO2(dry base) % | ≥99.0 |
PH value | 6.0-7.0 |
Fe2O3 mg/kg | ≤300 |
DBP oil factor cm3/g | 2.0-3.0 |
45µm Residue on sieve % | ≤0.02 |
BET specific surface area m2/g | 175-205 |
Na2SO4 % | ≤0.5 |
Average grain diameter d50 µm | 12-16 |
Surface treatment | — |
Compacted density g/l | 70-100 |