Glycerol is a clear, colourless, viscous, sweet-tasting liquid. Glycerol is used in sample preparation and gel formation for polyacrylamide gel electrophoresis.Glycerin is an important basic organic raw material. It is widely used in industry, medicine and daily life. There are currently more than 1,700 uses, mainly used in medicine, cosmetics, alkyd resin, tobacco, food, acid resin, cellulole And explosives, textile printing and dyeing, etc.