Macro-pored micro-spherical silica gel
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2019-07-01

Column chromatography silica gel

Advantage:

  • Direct manufacture-can gurantee stable supply of goods, product quality and lead time.
  • Experienced workers, mature technology, strict QC.
  • Professional sales to give you technical support for your use.
  •  After-sales service to reassure you.

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【Character】

Column chromatographic 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  ㎡/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)

 


 

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