Silikagelpulver er et kolloidalt system med faste egenskaber, sammensat af kolloidale partikler, der danner en agglomereret struktur. Kolloide partikler er kondensationspolymerer af hydreret silicagel, som er amorfe stoffer. Mellemrummene i aggregaterne af kolloide partikler danner den mikroporøse struktur inde i silicagelpartiklerne til reagenskolonnekromatografi. Derfor er det et adsorptionsmateriale af høj kvalitet med rig mikroporøs struktur, højt specifikt overfladeareal, høj renhed og høj aktivitet.
Silica gel pulver has good thermal stability and chemical stability. It can selectively adsorb and purify isomer components from multi-component solutions. In the process of preparing pulver af silicagel, a series of products with an average pore diameter of 20A°-20000A° 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 pulver af silicagel is as high as 99%. Compared with organic column packing, silica gel is a solid colloid with SiO2 as the matrix, and has a compact structure. Even if it is directly discarded, organic matter will be lost and the target product will be contaminated.
