Industrial glycerol (First grade)
Glycerin is important material to make alkyd, polyurethane, cellophane and detonator. It is transparent and viscous liquid with no or light yellow color, no suspending, no smell. It can improve the osmotic pressure of blood plasma, so it was used as dehydrating agent. When used externally, it is hygroscopic and moisture retaining, can intenerate part of fat layer.
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