Triethylene glycol is a poly(ethylene glycol) that is octane-1,8-diol in which the carbon atoms at positions 3 and 6 have been replaced by oxygen atoms. It has a role as a plasticiser. It is a primary alcohol, a diol and a poly(ethylene glycol).
Solubility greater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
Formula
C6H14O4
Mol. Weight
150.17
CAS #
112-27-6
Form
Powder
State
Triethylene glycol is a colorless liquid with a mild odor. Dense than water. (USCG, 1999)
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Viscosity Controlling
Antioxidant
Moisturizing
Provides scent
Controls product thickness
Traditional Use
Synthetic humectant developed in the 20th century as a modern cosmetic ingredient to attract and retain moisture in skincare products, replacing some traditional plant-based humectants.