| Propylene glycol(CAS:57-55-6)1,2-Propanediol (CAS NO.57-55-6 ), also known as Propylene glycol, is a colorless, odorless, viscous, highly hygroscopic liquid with a faintly sweet taste. It is miscible with water, ethanol, ether, chloroform, acetone and other organic solvents. The solubility to hydrocarbons and chlorinated hydrocarbons is small, but it is strong than ethylene glycol. Propylene Glycol contains an asymmetrical carbon atom, so it exists in two optically active forms (dextrorotatory and sinistrorotatory isomers). And the commercial Propylene Glycol is a racemic mixture. |
