Glycerol, ultrapure is used in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel's sample well.
Glycerol is widely used in cosmetics, especially for production of soaps and lotions, solvents and emulsifiers. It may also be found in inks, adhesives and pharmaceuticals. It plays an important role in the manufacture of plastics and resins.