China manufacture USA approved silica gel 200-400 mesh chromatography industrial
China manufacture USA approved silica gel 200-400 mesh chromatography industrial
[Character]
Column chromatography silica gel is white and uniform granules, using high quality silica gel as raw material, the main component is silicon dioxide. It’s main characteristic is that it can achieve the purpose of separation and purification by the difference of adsorbing retention time of different components in mixture.
[Application]
1. Column chromatography silica gel is used for separation and purification of active ingredients of Chinese herbal medicine and preparation of high-purity substances.
2. Refining petroleum products and selective adsorption and separation of organic gases and liquids;
3. As catalyst carrier and chromatographic support.
[Technical data]
| item | specifications | |||||
| A type | B type | C type | ||||
| industrial grade | reagent grade | industrial grade | reagent grade | industrial grade | reagent grade | |
| pore size A° | 20-30 | 20-30 | 50-80 | 50-80 | 90-100 | 90-100 |
| pore volumn ml/g | 0.35-0.45 | 0.35-0.45 | 0.5-0.7 | 0.5-0.7 | 0.85-1.0 | 0.85-1.0 |
| specific surface m2/g | ≥600 | ≥600 | 450-600 | 450-600 | 320-400 | 320-400 |
| dulk density g/L | ≥670 | ≥670 | 500-600 | 500-600 | 400-500 | 400-500 |
| 150℃ drying weight %≤ | 5 | 5 | 5 | 5 | 5 | 5 |
| chlorides(Cl) %≤ | — | 0.02 | — | 0.02 | — | 0.02 |
| iron(Fe) %≤ | — | 0.02 | — | 0.02 | — | 0.02 |
| size | 60-100/80-120/100-200/200-300/230-400/300-400 | |||||
| package | 1kg/bag,10kg or 20kg/bag(double layer) | |||||
1. Are you manufacture or trader?
We are manufacture.
2. How long will be your lead time?
Normally lead time will be 7-15days after deposit.
3. How do you control your quality?
We have professional QC team and test department, we gurantee each lot of our products will be tested before loading.
4. How should I know how to use your product?
If its first time you use the product, we will guide you, and better you take samples for trying.
If you need some technical support, we can help you to find such technician.
If you need relevant machine orequipment, we can also help you find in China.
5. Is it availabel to visit your factory?
Yes, we welcome you to visit our factory in Qingdao, China.
6. Do you offer free sample?
Yes, we offer samples for free, but you need to take care of the freight.
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