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Propylene glycols are used as initiators for synthesis of nonionic surfactants made from polymerization of ethylene oxides with other oxides such as propylene or butylene oxides. Propylene glycol is also used as the starting material for the synthesis of propylene glycol esters with sorbitol and/or fatty acids.ust suppression. Dust formation and the associated housekeeping issues, plus the danger of dust explosions, make dust suppression important in mining and cement grinding applications.
Propylene glycol is a clear, colorless and hygroscopic liquid. Propylene glycol contains an asymmetrical carbon atom, so it exists in two enantiomers.The commercial product is a racemic mixture. Pure optical isomers can be obtained by hydration of optically pure propylene oxide.ike ethylene glycol, propylene glycol is able to lower the freezing point of water, and so it is used as aircraft de-icing fluid. Water-propylene glycol mixtures dyed pink to indicate the mixture is relatively nontoxic are sold under the name of RV or marine antifreeze.