China Precipated Silica for Feed Additive and Pharmaceutical as Carrier, Find details about China Hydrophilic Fumed Silica, Hydrophobic Fumed Silica from Precipated Silica for Feed Additive and Pharmaceutical as Carrier
Items | HCP 260 | HCP 260P | HCP 200 |
Appearance | Micro pearl | Powder | Micro pearl |
Heating loss (105°C) % | ≤ 6.5 | ≤ 6.5 | ≤ 6.5 |
Loss on ignition (1000±25°C)% | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 |
DBP Oil Absorption Value DBP cm3/g | 2.4-3.0 | 2.4-3.0 | 1.8-2.5 |
Silica(dry basis) % | ≥ 96 | ≥ 96 | ≥ 96 |
PH-value(10%aqueous solution) | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 |
Heavy metal (Pb) mg/kg | ≤ 30 | ≤ 30 | ≤30 |
As mg/kg | ≤ 3.0 | ≤ 3.0 | ≤ 3.0 |
Cd mg/kg | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
Pb mg/kg | ≤ 5 | ≤ 5 | ≤ 5 |
Na2SO4 % | ≤ 4.0 | ≤ 4.0 | ≤ 4.0 |
Average grain diameter d50 µm | 150-250 | 80-150 | 180-450 |