Propylene Glycol

As steam is produced?

The Propylene glycolis an organic compound, usually a little sweet, odorless, colorless, transparent and slimy. It is a liquid hygroscopic (absorbs water from air) and miscible (capable of mixing it with water).
It is the substance found in greater quantities in the Electronic Cigarette, with the responsibility to produce steam that perfectly simulates the smoke of a conventional cigarette.

The Propylene glycol is used in the following ways:

  • As a moisturizer in medicines, cosmetics, food, toothpaste and tobacco products;
  • In electronic cigarettes to produce steam;
  • As a medical and sexual lubricant;
  • As a solvent for dyes and fragrances in food products;
  • As a carrier in fragrance oils;
  • As a solvent used in photographic chemicals;
  • In disinfectant lotions for hands.
Note: Only those were the most common applications.

Propylene glycol poisoning with apparently only occurred due to improper use and intravenous (directly into the vein), and accidental ingestion by children. Need to ingest a large amount of Propylene to cause such damage. The serious toxicity of Propylene occur only in extremely high doses and over a relatively short period of time.

The U.S. Agency for Food and Drug Administration (FDA) said Propylene glycol as "generally recognized as safe".

The Propylene glycol does not show any evidence of being a carcinogen. The Propylene glycol can be irritating to some individuals.

For more information, please see:
  • Wikipedia
  • Official websiteHere you can find all the detailed information about Propylene glycol.
  • The links are provided outside the SMUKY and are the sole responsibility of their authors.


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