Learn Column Chromatography Silica Gel Powder Silica Gel
Column Chromatography Silica Gel is a versatile adsorbent composed primarily of silicon dioxide (SiO2) in the form of white beads or irregular particles. Its porous structure and unique adsorption properties make it ideal for various separation and purification tasks. It is mainly used for the refining of petroleum products, to remove aromatic compounds, or for the separation and purification of active ingredients in traditional Chinese medicine, as well as for the preparation of high-purity substances.
Technical Specifications
Ordianary Type:
Item | Type I | Type II | Type III | Type IV |
|---|---|---|---|---|
Qualified size, ≥% | >150 μm, 80 | >150 μm, 80 | 75-150μm, 80 | 75-150μm, 80 |
150 ℃ dry weight loss, ≤ | 5 | 5 | 5 | 5 |
Specific Surface Area, m2/g | ≥600 | 450-600 | 320-450 | ＜350 |
Pore volume, ml/g | 0.35-0.45 | 0.5-0.75 | 0.8-1.1 | >1.1 |
Pore diameter, A | 20-35 | 50-80 | 80-120 | >120 |
Heavy metal (Pb), mg/kg | - | - | - | - |
As mg/kg, ≤ | - | - | - | - |
Pb mg/kg, ≤ | - | - | - | - |
PH (100g/L water suspension) | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 |
Fe, % ≤ | - | - | - | - |
Cl, % ≤ | - | - | - | - |
Optimized Type:
Item | Type I | Type II | Type III | Type IV |
|---|---|---|---|---|
Qualified size, ≥ | 50-75 μm, 60 | 50-75 μm, 60 | <50μm, 60 | <50μm, 60 |
150 ℃ dry weight loss, ≤ | 3 | 3 | 3 | 3 |
Specific Surface Area, m2/g | ≥600 | 450-600 | 320-450 | ＜350 |
Pore volume, ml/g | 0.35-0.45 | 0.5-0.75 | 0.8-1.1 | >1.1 |
Pore diameter, A | 20-35 | 50-80 | 80-120 | >120 |
Heavy metal (Pb), mg/kg | 30 | 30 | 30 | 30 |
As mg/kg, ≤ | 3 | 3 | 3 | 3 |
Pb mg/kg, ≤ | 3 | 3 | 3 | 3 |
PH (100g/L water suspension) | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 |
Fe, % ≤ | 0.02 | 0.02 | 0.02 | 0.02 |
Cl, % ≤ | 0.02 | 0.02 | 0.02 | 0.02 |
Applications
-
Petroleum Refining: Removes and purifies aromatic hydrocarbons from petroleum products.
-
Separation and Purification: Selectively adsorbs and separates substances based on their polarity.
-
Catalysis: Serves as a support for catalysts in various chemical reactions.
-
Chromatography Media: Forms the stationary phase in column chromatography for purification and analysis.
-
Traditional Chinese Medicine: Isolates and purifies active ingredients from herbal remedies.
Packing
-
Standard Packing: Net Weight 15Kg, 20Kg, 25Kg PP Bag, 25Kg Fiber/Iron Drum, 500Kg, 800Kg Container Bag (customization available)
Storage and Handling
-
Store in a cool, dry place away from direct sunlight and moisture. Avoid contact with incompatible materials like strong acids and bases. Wear appropriate personal protective equipment when handling.
Customization
-
The moisture content, packing, and size can be customized according to your specific requirements.