Propylene glycol

Propylene glycol

1.00

Other names: α-Propylene glycol, 1,2-Propanediol, 1,2-Dihydroxypropane, Methyl ethyl glycol (MEG), Methylethylene glycol

Propylene glycol (IUPAC name: propane-1,2-diol) is a synthetic organic compound with the chemical formula C3H8O2. It is a viscous colorless liquid which is nearly odorless but possesses a faintly sweet taste. Chemically it is classed as a diol and is miscible with a broad range of solvents, including wateracetone, and chloroform.

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0,5 lit metal bottle
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10 lit plastic can
20 lit metal can UN
25 lit plastic can
200 lit drum/barrel
640 lit IBC container
1000 lit IBC container

Description

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.

The freezing point of water is depressed when mixed with propylene glycol owing to the effects of dissolution of a solute in a solvent (freezing-point depression). In general, glycols are non-corrosive, have very low volatility and very low toxicity; however, the closely related ethylene glycol (a key ingredient in antifreeze) is toxic to humans and to many animals.