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propylene glycol

noun

, Chemistry.
  1. a colorless, viscous, hygroscopic liquid, C 3 H 8 O, used chiefly as a lubricant, as an antifreeze, as a heat transfer fluid, and as a solvent for fats, oils, waxes, and resins.


propylene glycol

noun

  1. a colourless viscous hydroscopic sweet-tasting compound used as an antifreeze and brake fluid. Formula: CH 3 CH(OH)CH 2 OH Systematic name1,2-dihydroxypropane
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


propylene glycol

  1. A colorless, viscous liquid used in antifreeze solutions, in hydraulic fluids, and as a solvent. Unlike ethylene glycol, it is not toxic and is also used in foods, cosmetics, and oral hygiene products. Chemical formula: C 3 H 8 O 2 .


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Word History and Origins

Origin of propylene glycol1

First recorded in 1880–85
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Example Sentences

That’s the uppermost layer of your screen, which is extremely sensitive to the acidity in alcohol or compounds like ammonia or propylene glycol, often present in cleaning agents such as window cleaners and degreasers.

This is also why propylene glycol is rarely sprayed on roadways and surfaces.

One key ingredient of the stuff: Propylene glycol, a synthetic liquid that absorbs water.

Propylene glycol is used for a variety of industrial, cosmetic, and food production uses.

The European formula for Fireball has even less: under one gram per kilogram of propylene glycol.

Propylene glycol has been used as the base for fog machine liquids and in nebulizers for decades.

The major point is that we have no studies that show the safety of propylene glycol when inhaled over the long term.

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propylenepropylene group