Properties
Siica gel of column chromatography is white beads or irregular particles. its major component is SiO2; . nH20, non-toxic and tasteless, stable in chemical properties, it doesn'l react with any other substances except strong acid and hydrofluoric acid, its insoluble in water and organic solvent. silica gel of column chromatography is porous material and has different adsorption and retention time of diferent polar substanes, so it can be used to separate and purify.
Application
This product is mainly used for removal and refined aromatic hydrocarbons from petroleum products, selective adsorption and separation of substances of different polarty; It can be used as catalyst carrier and chromatography tam body and also can be used for the separation and purification of the active ingredients of Chinese hertal medicine
Technical Specifications
Items | parameters |
Ordinery Type
| Optimized Type |
| Ⅰ-ZCX-1 | Ⅰ-ZCX-2 | Ⅰ-ZCX-3 | Ⅰ-ZCX-4 | Ⅱ-ZCX-1 | Ⅱ-ZCX-2 | Ⅱ-ZCX-3 | Ⅱ-ZCX-4 |
| CL w/% ≤ | -- | -- | -- | -- | 0.02 | 0.02 | 0.02 | 0.02 |
| Fe w/% ≤ | -- | -- | -- | -- | 0.02 | 0.02 | 0.02 | 0.02 |
| PH(100g/L water supension) | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 |
| Pb mg/kg ≤ | -- | -- | -- | -- | 3 | 3 | 3 | 3 |
| As mg/kg ≤ | -- | -- | -- | -- | 3 | 3 | 3 | 3 |
| Heavy metal(Pb) mg/kg ≤ | -- | -- | -- | -- | 30 | 30 | 30 | 30 |
| Pore diameter A | 20-35 | 50-80 | 80-120 | >120 | 20-35 | 50-80 | 80-120 | >120 |
| Pore volume mL/g | 0.35-0.45 | 0.5-0.75 | 0.8-1.1 | >1.1 | 0.35-0.45 | 0.5-0.75 | 0.8-1.1 | >1.1 |
| Specific surface area m²/g | ≥600 | 450-600 | 320-450 | <350 | ≥600 | 450-600 | 320-450 | <350 |
| 150℃ dry weight loss w/% ≤ | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 |
Qualified size w/% ≥ | >150μm | 75-150μm | 50-75μm | <50μm |
| 80 | 80 | 60 | 60 |
| Granularity μm | 30-50μm、50-75μm、75-150μm、150-300μm、250-600μm It can also be processed accorfing to the particle size of the agreement. |
Packaging: packed in two-layer plastic bags with cartons outside.Specs is 1kg,5kg,20kg/carton or as per required.
