... liquid, inflammable and harfulless, used in UPR,plasticizer,surfactant,antifreeze,emulsifier,softener Propylene glycol (PG C3H8O2 ) is a ... absorption. It is nearly odorless ,uninflammable and almost non-toxic. It can be mixed and solved with alcohol,water ... can also be used as mould inhibitor,rerigerant system,antifreeze ,coolant,ice inhibitor and moisture preserving agent for tobacco. Propylene ...