The chemical name of propylene glycol is "1,2-propanediol." The molecule contains a chiral carbon atom. The racemic form is a hygroscopic viscous liquid with a slightly spicy taste. It is misc...

The chemical name of propylene glycol is "1,2-propanediol." The molecule contains a chiral carbon atom. The racemic form is a hygroscopic viscous liquid with a slightly spicy taste. It is miscible with water, acetone, ethyl acetate, and chloroform, and soluble in ether. It can dissolve many essential oils but is immiscible with petroleum ether, paraffin, and fats. It is relatively stable to heat and light and even more stable at low temperatures. At high temperatures, propylene glycol can be oxidized into propionaldehyde, lactic acid, pyruvic acid, and acetic acid.

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