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Specification | Una-100P |
Appearance | Powder |
Heating loss (105°C) % | ≤ 6.5 |
Loss on ignition(1000±25°C)% | ≤ 8.5 |
DBP Oil Absorption Value (cm3/g) | 2.4-3.0 |
Silica(dry basis) % | ≥ 96 |
PH-value(10%aqueous solution) | 6.0-7.5 |
Heavy metal (Pb) mg/kg | ≤ 30 |
As mg/kg | ≤ 3.0 |
Cd mg/kg | ≤ 0.5 |
Pb mg/kg | ≤ 5 |
Na2SO4% | ≤ 4.0 |
Average grain diameter | 80-250 |










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