Triethylene glycol
CAS 112-27-6C6H14O4150.17 g/mol
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glycol is a poly(ethylene glycol) that is octane-1,8-diol in which the carbon atoms at positions 3 and 6 have been replaced by oxygen atoms.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).
IUPAC: 2-[2-(2-hydroxyethoxy)ethoxy]ethanol
PubChem
Physical & Chemical Properties
| Melting Point | 24.3 °F (NTP, 1992) |
| Boiling Point | 545 °F at 760 mmHg (NTP, 1992) |
| Density | 1.125 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) |
| Flash Point | 330 °F (NTP, 1992) |
| Vapor Pressure | less than 0.001 mmHg at 68 °F ; 1 mmHg at 237 °F (NTP, 1992) |
| Appearance | Triethylene glycol is a colorless liquid with a mild odor. Dense than water. (USCG, 1999) |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2909
Data: UN Comtrade
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