... analysis: 1.Silica gel for thin-layer chromatography 2.Silica gel for column-layer chromatography 3.Silica gel plateC. Silica gel sachet ... 20g, 100g,200g,500g,1000g,5kg,10kg,etc. 3.Paper Material: Filter paper, Tea filter paper(thick), OPP, Non-woven, Tyrek paper, Cloth ... ,etcD. Cat litter 3.6L,3.8L orange/blue/white ...