Silica Gel for Column-layer Chromatography

Description:
Characteristics:
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 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.

Technical Data:
Chlorides(Cl), %: 0.02
Iron(Fe), %: 0.02
pH(100g/l water suspension): 6.0-7.0
Lead(Pb), %: 0.001
Arsenic(As), %: 0.0003
Heavy metals (by Pb), %: 0.003
Loss on heating, %: 3.0
Specific surface, m2/g: 550, 300-500, 200-300
Pore volume, ml/g: 0.70, 0.70-0.90, 0.85
Granularity eligibility, %: > 15075-15050-75< 50
80  80  60   60
Granularity, mm: To be decided upon buyers requirements

Price Terms :	FOB