China High Quality Precipitated Silica Anti Caking Agent Silicon Dioxide for Feed, Find details about China Hydrophilic Fumed Silica, Hydrophobic Fumed Silica from High Quality Precipitated Silica Anti Caking Agent Silicon Dioxide for Feed
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 |