White grains of homogeneous size.Chief ingredient is silicon dioxide.Of high purity.Secure and Sanitary.
General Description:
White grains of homogeneous size.Chief ingredient is silicon dioxide.Of high purity.Secure and Sanitary.Can be used to separate and refine mixed components because different components have different absorption duration on this silica gel.
Use:
For refinement of petrol products, removal of aromatic hydrocarbon material, separation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance,etc.
1, thick layer chromatography silica gel: average aperture 80-100 A, volume 0.75- 1.0 ml/g, specific surface 300-450 m2 / g
2, thin layer chromatography silica gel: average aperture 20-30 A, volume 0.35 -0.45 ml/g, specific surface 650-800 m2 /g
3,big layer chromatography silica gel:average aperture120-180A,volume1.05-1.25ml/g,specific surface 240-300m2/g
4, type B layer chromatography silica gel: average diameter 40-70 A, volume 0.6- 0.8 ml/g, specific surface 450-600 m2 /g.
Type : technical grade silica gel column layer and reagent grade silica gel column layer
Specification:180~425um (40~80mesh),150~250um (60~100mesh),125~130um (80~120mesh)97~150um (100~160mesh),74~150um (100~200mesh),75~97um (160~200mesh)54~75um (200~300mesh),37~54um (300~400mesh) and so on.
fine silica powder(column layer)
