Diethylene Glycol (DEG)

Definition - What does Diethylene Glycol (DEG) mean?

Diethylene glycol (DEG) refers to an organic chemical compound with the chemical formula (HOCH2CH2)2O. It is colorless, odorless and hygroscopic in nature. It is primarily used as a key ingredient in the production of corrosion inhibitor solvents.

Corrosionpedia explains Diethylene Glycol (DEG)

Diethylene glycol (DEG) is used in a wide range of industrial applications. Some of these include:

  • To produce tobacco and tobacco products (such as additives, humectants and inks)
  • To produce artificial smoke/fog/mist
  • As an ingredient in fuel to warm foods and to heat enclosed spaces
  • In fire extinguishing sprinkler systems
  • To manufacture munitions
  • To produce deicers for use on roadways and sidewalks
  • As a component of heat transfer fluids in systems
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