| ≥1 piece |
Precipitated silica(white carbon) Food grade
Silicon Dioxide food grade
| Appearance | White powder |
| Loss on drying (2Hrs,105°C) % | ≤5 |
| Ignition loss 1000°C % | ≤6 |
| SIO2(Ignition) % | ≥99 |
| DBP absorption value cm³/100g | 280~350 |
| BET specific surface area m²/g | 280~400 |
| Bulk Density kg/m³ | 120~160 |
| Average particle size (D50) μm | 20~30 |
| Water absorption ml/20g | 40-70 |
| PH value | 6.3±0.2 |
| Na2SO4 % | 0.3~0.7 |
| Pb mg/kg | ≤5 |
| Heavy metal(as Pb) mg/kg | ≤30 |
| As mg/kg | ≤3 |