Triethylene glycol
CAS 112-27-6
EC 203-953-2
Formula C6H14O4
MW 150.17 g/mol
Alcohols & Glycols Plastics & PolymersWater TreatmentPharmaceuticals & HealthcarePersonal Care & Cosmetics Preservation & BiocideCross-linking & CuringSolvent & CarrierHumectant & Moisturizing
Description
Triethylene glycol (TEG, CAS 112-27-6) is a hygroscopic diol belonging to the glycol ether family, also known commercially as triglycol or Triethylenglykol. It carries no E-code designation and is identified under EC 203-953-2. It is miscible with water and most polar solvents, making it suitable for aqueous and solvent-based formulation systems.
In plastics and polymer manufacturing, TEG functions as a crosslinker by reacting with isocyanates or polyacids to build network structures that control flexibility and mechanical strength. In air treatment and water treatment applications, it acts as an antimicrobial agent and hygroscopic absorbent, capturing moisture and reducing airborne microbial load through direct contact.
TEG is supplied as a technical or high-purity liquid grade, with pharmaceutical-grade material available conforming to Ph.Eur. and USP/FCC standards. The product falls under REACH regulation and is classified under HS code 29094919. Packaging typically includes IBC containers and bulk tanker delivery for industrial volumes.
In plastics and polymer manufacturing, TEG functions as a crosslinker by reacting with isocyanates or polyacids to build network structures that control flexibility and mechanical strength. In air treatment and water treatment applications, it acts as an antimicrobial agent and hygroscopic absorbent, capturing moisture and reducing airborne microbial load through direct contact.
TEG is supplied as a technical or high-purity liquid grade, with pharmaceutical-grade material available conforming to Ph.Eur. and USP/FCC standards. The product falls under REACH regulation and is classified under HS code 29094919. Packaging typically includes IBC containers and bulk tanker delivery for industrial volumes.
Physical Properties
| Melting Point | -7 °C |
| Boiling Point | 165 °C @ Press: 14 Torr |
| Density | 1.1274 g/cm³ @ Temp: 15 °C |
| Flash Point | 165 °C |
| Appearance | Colorless, hygroscopic liquid; practically odorless. Soluble in water; immiscible with benzene, toluene, and gasoline. Combustible. |
| Color | Clear very slightly yellow |
| Odor | Very mild, sweet. |
| Form | Viscous Liquid |
| Water Solubility | SOLUBLE |
| Vapor Pressure | <0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.455(lit.) |
| pH | 5.5-7.0 (25℃, 50mg/mL in H2O) |
| Log P | -1.75 at 25℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H302H312H314H412
P
P260P264P270P273P280P316P317P321P330P363P405P501P301+P317P302+P352P304+P340P362+P364P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 29094919 |
| WGK (Germany) | 1 |
Other Names
2-[2-(2-hydroxyethoxy)ethoxy]ethanoltriglycolTriethylenglykolTEG
Related Products
Derivatives
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