Silica Gel for Column-layer Chromatography
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.
Technical Data
ITEM | Specifications | |||||
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) | 6.07.0 | 6.08.0 | ||||
Lead(Pb), %≤ | 0.001 |
| ||||
Arsenic(As), %≤ | 0.0003 |
| ||||
Heavy metals (by Pb), %≤ | 0.003 |
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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 | > 150μ75-150μ50-75μ< 50μ | ||||
Granularity, mm | To be decided upon buyers requirements | |||||
