Product description Sanpont Reagent grade type c silica gel raw material, the product is on the basis of industrial silica gel, then using our patent chromatography to do acid treatment and water treatment, thereby greatly reducing the content of metal impurities, so the purification effect becomes better. Product feature 1.Various particle size you can choose ; 2.Various packages you can choose ; 3.Widely used in spe filler , separation and purification of pharmaceutical intermediates , engine oil and other chemicals ; 4. Good quality & cheap price ! Product specification/models Color: white shape: powder pore diameter: 90a. Pore volume: 0.8-1ml/g specific surface area: 300-400m2/g ph: 6.5-7.5 loss on heating(150¡ãc):