propylene glycol

noun

Definition of propylene glycol 

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

Examples of propylene glycol in a Sentence

Recent Examples on the Web

Juul pods include glycerol, propylene glycol, natural oils, extracts and flavor, nicotine and benzoic acid, company officials say, but not diacetyl, a potentially harmful chemical used in other vaping products for flavoring. Jill Tucker, SFChronicle.com, "As Juul vaping surges among teens, health concerns grow," 27 May 2018 The ingredients of the liquid vary, but generally include nicotine (though some are nicotine free), chemicals to vaporize the nicotine (like propylene glycol and vegetable glycerin), additives and flavoring. Scientific American, "E-Cigs and Second-Hand Vaping," 18 May 2018 Some of them heat up to 800 degrees and the flavors are made with propylene glycol, which can turn into formaldehyde when heated. Kathryn Tuggle, Good Housekeeping, "The Rise Of The "Personal Diffuser" Stick—Is Essential Oil Vaping Safe?," 19 Sep. 2017 But vaping liquids contain additives such as propylene glycol and glycerol that can form carcinogenic compounds when they are heated. Author: Kate Zernike, Anchorage Daily News, "Devices to quit smoking become the devices teenagers can’t quit," 2 Apr. 2018 But vaping liquids contain additives such as propylene glycol and glycerol that can form carcinogenic compounds when they are heated. Kate Zernike, New York Times, "‘I Can’t Stop’: Schools Struggle With Vaping Explosion," 2 Apr. 2018 According to Rubinstein, the toxicity of non-nicotine e-cigarettes is caused by the propylene glycol and glycerin used to preserve the flavors. Hallie Detrick, Fortune, "Are E-Cigarettes Going Up in Smoke? Users Show Same Cancer-Causing Chemicals as Regular Smokers," 6 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'propylene glycol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of propylene glycol

1870, in the meaning defined above

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The first known use of propylene glycol was in 1870

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More Definitions for propylene glycol

propylene glycol

noun

Medical Definition of propylene glycol 

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

More from Merriam-Webster on propylene glycol

Britannica.com: Encyclopedia article about propylene glycol

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