China Feed Grade Precipitated Silica Silicon Dioxide Carrier Anti Caking Agent, Find details about China Hydrophilic Fumed Silica, Hydrophobic Fumed Silica from Feed Grade Precipitated Silica Silicon Dioxide Carrier Anti Caking Agent
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 |