China Precipitated Silica as High Absorbent Silica with High Specific Surface, Find details about China Hydrophilic Silica, Hydrophobic Silica from Precipitated Silica as High Absorbent Silica with High Specific Surface
Items | HCP 203A | HCP 203B |
Appearance | Super-fine Powder | Super-fine Powder |
BET specific surface area m2/g | ≥220 | ≥280 |
Heating loss (105°C) % | ≤ 5.0 | ≤ 5.0 |
Loss on ignition (1000±25°C)% | ≤ 8.5 | ≤ 8.5 |
DBP Oil Absorption Value cm3/g | 2.4-2.8 | 3.5 -3.8 |
Silica(dry basis)% | ≥ 96 | ≥ 96 |
PH-value(10%aqueous solution) | 6.0-7.0 | 6.0-7.0 |
Heavy metal (Pb) mg/kg | ≤ 30 | ≤ 30 |
As mg/kg | ≤ 3.0 | ≤ 3.0 |
Pb mg/kg | ≤ 5 | ≤ 5 |
Na2SO4 % | ≤ 4.0 | ≤ 4.0 |
Average grain diameter d50 µm | 10-15 | 10-15 |