Silica gel powder is white uniform particle and its main composition is silicon dioxide. High purity, safety and health characteristics.
It is a colloidal system with solid properties, consisting of colloidal particles forming an agglutination structure. Colloidal particles are condensation polymers of hydrated silica gel (polysilicic acid), which are amorphous substances. The interstitial formation of colloidal particles and the reagent column were used to analyze the micropore structure inside the silica particles. Therefore, it is a kind of high quality adsorption material with rich microporous structure, high specific surface area, high purity and high activity.
The adsorption properties of the reagents silica gel powder depend on the structure of the micropores and the surface of the inner pores formed during the production of silica gel.
The silica gel powder is made of high quality silica gel with high transparency, excellent adsorption performance and ideal separation function for similar properties, structures and isomers. In the production process of raw materials, acid bubbles and aging time are strictly controlled, and high-temperature calcining technology is adopted. Therefore, silica gel powder has a rigid framework structure, high mechanical strength, and can withstand pressures up to 30MPa. Silica gel powder has good thermal stability and chemical stability and can be selectively adsorbed and purified from multi-component solution. During the preparation of silica gel powder, a series of products with an average aperture of 20A° -20000a ° can be produced by controlling different technological conditions to adapt to the separation and purification of substances with different properties, molecular weights and molecular structures. The purity of silica gel powder is up to more than 99%. Compared with organic column packing, silica gel is a solid colloidal based on SiO2 with a dense structure, even if the target product is contaminated by organic matter loss caused by direct discard.