Definition of propylene glycol in English:

propylene glycol


mass nounChemistry
  • A liquid alcohol which is used as a solvent, in antifreeze, and in the food, plastics, and perfume industries.

    Chemical formula: C₃H₆(OH)₂: two isomers

    • ‘Two of the coolants extensively used are ethylene glycol and propylene glycol.’
    • ‘Instead, purchase animal-friendly antifreeze, which contains propylene glycol rather than ethylene glycol, the center says.’
    • ‘The non-aqueous solvent is typically a polyhydric alcohol such as propylene glycol.’
    • ‘The material safety data sheet warns the user to avoid skin contact and advises any person handling propylene glycol to wear a respirator, chemical safety goggles, rubber boots and heavy rubber gloves.’
    • ‘One solution has been the development of antifreezes that replace ethylene glycol with propylene glycol, a liquid that's nontoxic enough to be used as a sweetener in children's cough syrup.’