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Column chromatography silica gel
Chinese name: Column chromatography silica gel
CAS No.: 63231-67-4
EINECS No.: 613-187-4
Molecular formula: SiO2·nH2O
Molecular weight: 78.09958
Properties:
It features high purity and safety. It is a colloidal system with solid characteristics, composed of colloidal particles that form a coagulated structure. The colloidal particles are condensates of hydrated silica (polysilicic acid) and are amorphous substances. The gaps between the aggregates of colloidal particles form the microporous structure inside the column chromatography silica gel particles. Therefore, it is an excellent adsorption material with rich microporous structure, high specific surface area, high purity and high activity.
Specification:
Application:
Silica gel for column chromatography is widely used in the pharmaceutical, chemical, extractive, biochemical and other industries due to its adsorption properties. It can be used for the separation and purification of active ingredients from traditional Chinese medicine, the preparation of high-purity substances, the refining of petroleum products, the dehydration and purification of organic substances, new drug research and synthesis, etc.
Highlighting the advantages: The column chromatography silica gel is made from high-quality silica gel with excellent transparency. It has excellent adsorption performance and can achieve ideal separation functions for substances with similar properties, structures, and even isomers. During the raw material production process, the time for acid soaking and aging is strictly controlled, and high-temperature sintering technology is adopted. Therefore, the silica gel powder has a rigid framework structure, high mechanical strength, and can withstand pressures within 30 MPa. The column chromatography silica gel has good thermal and chemical stability, selectively adsorbing and purifying isomeric components from multi-component solutions. In the production process of column chromatography silica gel, a series of products with average pore diameters ranging from 20 A to 20,000 A can be produced by controlling different process conditions to adapt to the separation and purification of substances with different properties, molecular weights, and molecular structures. The purity of column chromatography silica gel is over 99%, and compared with organic column packing materials, silica gel is a solid colloid based on SiO2, with a dense structure. Even if it is directly discarded, it will not cause organic matter loss and contaminate the target product.
Packaging:
20kg/1kg * 20 (paper boxes, cardboard barrels, laminated bags)
500g/bottle
Storage conditions: Seal and store in a dark place
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