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

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 .

Word History and Origins

Origin of propylene glycol¹

First recorded in 1880–85

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.

From Popular-Science

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

From Popular-Science

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

From The Daily Beast

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

From The Daily Beast

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

From The Daily Beast

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

From The Daily Beast

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

From The Daily Beast