Industrial silica gel
Silica Gel for Column-layer Chromatography
| ITEM | Index | |||||
| Type I | Type II | |||||
| TYPE | ZCX-1 | ZCX-2 | ZCX-3 | ZCX-1 | ZCX-2 | ZCX-3 |
| Chlorides (Cl), % ≤ | 0.02 | |||||
| Iron (Fe), % ≤ | 0.02 | |||||
| pH (100g/l water suspension) | 6.0–7.0 | 6.0–8.0 | ||||
| Lead (Pb), % ≤ | 0.001 | |||||
| Arsenic (As), % ≤ | 0.0003 | |||||
| Heavy metals (by Pb), % ≤ | 0.003 | |||||
| Loss on heating, % ≤ | 3.0 | 5.0 | ||||
| Specific surface, m²/g | ≥550 | 300–500 | 200–300 | ≥550 | 300–500 | 200–300 |
| Pore volume, ml/g | ≤0.70 | 0.70–0.90 | ≥0.85 | ≤0.70 | 0.70–0.90 | ≥0.85 |
| Granularity eligibility, %≥ | >150μ75–150μ50–75μ<50μ 80 80 60 60 |
>150μ75–150μ50–75μ<50μ 80 80 60 60 |
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| Granularity, mm | To be decided upon buyers requirements | |||||
Characteristics：
White grains of homogeneous size. Chief ingredient is silicon dioxide. Of high purity. Secure and sanitary. Can be used to separate and refine mixed components because different absorption duration on this silica gel.
Use：
For refinement of petrol products, removal of aromatic hydrocarbon material, separation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance, etc.
we can supply the products according to the customers' requirments and technical index.