PROPYLENE GLYCOL

~ also known as 1,2-propanediol; 1,2-dihydroxypropane, Propane-1,2-diol; 57-55-6; 1,2-Propylene glycol; etc. is a is a synthetic organic compound. The global propylene glycol market is projected to reach USD 4.60 billion by 2021, at a CAGR of 5.8% from 2016 to 2021

Chemical structure: C₃H₈O₂ (CH₃CHOHCH₂OH).  It is sometimes called α-propylene glycol to distinguish it from the isomer propane-1,3-diol (β-propylene glycol).

Properties: Propylene glycol is a clear, colorless and hygroscopic liquid. Propylene glycol contains an asymmetrical carbon atom, so it has two enantiomers. The commercial product is a racemic mixture. Pure optical isomers can be obtained by hydration of optically pure propylene oxide.

It is non-corrosive and has very low volatility and toxicity...