Propylene Glycol

Definition - What does Propylene Glycol mean?

Propylene Glycol, also known as propane-1,2-diol, is an organic compound used as a base for deicing solutions and in the preparations of polyester compounds. It has the chemical formula C3H8O2. Some of the properties of Propylene Glycol are as follows:

  • It is a viscous clear, colorless and hygroscopic liquid.
  • It has no odor.
  • Possesses slightly sweet taste.
  • It is miscible in wide range of solvents such as water, chloroform and acetone.

Petropedia explains Propylene Glycol

Propylene Glycol is used by food, chemical and pharmaceutical manufacturing industries as antifreeze when any leakage might lead to food contact. Propylene Glycol is recommended as a safe product for the use in food by the Food and Drug Administration (FDA). Some of the important facts about Propylene Glycol are as follows:

  • Its chemical formula is C3H8O2
  • Its molar mass is 76.10 g/mol
  • Its density is 1.036 gram per cubic centimeter
  • Its melting point is minus 59 degree Celsius
  • Its boiling point is 188.2 degree Celsius
  • Its thermal conductivity is 0.34 W/m-k @ 90 degree Celsius
  • Its viscosity is 0.042 Pa.s

Propylene Glycol can also be formed from bio diesel byproduct "glycerol".

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