Propylene Glycol is an organic compound with the chemical formula C3H8O2 and CAS number 57-55-6. It is usually a slightly sweet, odorless, colorless and transparent oily liquid. It is hygroscopic and easily mixed with water, acetone, chloroform, etc. Propylene glycol has many uses in industry, including:

  1. 1. Food industry: Propylene glycol fatty acid esters generated by the reaction of propylene glycol with fatty acids are mainly used as food emulsifiers. In addition, propylene glycol is also an excellent solvent for condiments and pigments.
  2. 2. Pharmaceutical industry: Propylene glycol is often used as a solvent and softener for the manufacture of various ointments and salves, and can also be used as a solvent to increase the stability of drugs.
Propylene Glycol
  1. 3. Cosmetic industry: Propylene glycol is often used as a solvent and softener in products such as facial masks, lotions, facial cleansers, essences, makeup removers, moisturizing lotions, etc. due to its good mutual solubility.
  2. 4. Other applications: Propylene glycol can also be used as a raw material for resins, plasticizers, surfactants, etc., and is the main component of advanced antifreeze.

Although propylene glycol is widely used in many fields and is non-irritating and non-toxic to the eyes and skin, excessive use may cause liver damage, kidney damage, coma, arrhythmia, etc.