Propylene glycol is a colorless and virtually odorless viscous liquid. It does not irritate the skin, but is mildly irritating to the eyes. Propylene glycol has a slightly sweet taste and is approved by the U.S. Food and Drug Administration for certain uses as food additives. Propylene glycol is hygroscopic and very stable. It has a high boiling point and low vapor pressure. Also, propylene glycol has the ability to dissolve other substances and is completely water-soluble.
The properties of propylene glycol make it perfect for a lot of specific uses in many different industries. Propylene glycol has a very broad array of practical applications and is used as a chemical ingredient in many products including anti-freezes, foods, cosmetics products, pharmaceuticals, aircraft de-icing fluids, fragrances, and personal care products.
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