viscous water absorption liquid, inflammable and harfulless, used in UPR,plasticizer,surfactant,antifreeze,emulsifier,softener Propylene glycol (PG C3H8O2 ) is a colorless liquid with steady viscosity and good water absorption. It is nearly odorless ,uninflammable and almost non-toxic. It can be mixed and solved with alcohol,water and various organic agents.PG is the raw material for unsaturated ...