Triethylene Glycol (TEG)

Natural Gas Dehydration: Removes moisture from gas to prevent hydrate formation and corrosion in pipelines.
Solvent Systems: Used in the formulation of printing inks, textile dyes, and industrial cleaning compounds.
Plasticizers: Acts as an intermediate in the production of plasticizers for safety glass and PVC materials.

TEG, Triglycol, 2,2'-(Ethylenedioxy)diethanol.

CAS: 112-27-6
EC: 203-953-2
Sectors: Oil, Gas & Energy, Plastics & Polymers, Home Care & Industrial Cleaning

Triethylene Glycol (TEG) (CAS 112-27-6) is a technical-grade glycol that appears as a clear, very slightly yellow viscous liquid, used mainly as a dehydration agent for natural gas streams and as a solvent and plasticizer intermediate in industrial processes. It serves as a vital dehydration agent in the natural gas industry, effectively removing water vapor from gas streams.

The chemical is characterized by its high boiling point and low volatility, making it an excellent solvent and plasticizer. It offers stable performance in demanding industrial environments, ensuring consistent moisture control.

As a commercial-grade glycol, it is also utilized in the production of polyester resins and specialized chemical intermediates. Its low toxicity profile compared to other glycols makes it suitable for various cleaning applications.

Typical Properties

Molecular formula	C₆H₁₄O₄
Molecular weight	150.17 g/mol
Form	Viscous Liquid
Color	Clear very slightly yellow
Odor	Very mild, sweet.
Melting point	-7 °C
Boiling point	165 °C @ Press: 14 Torr
Density	1.1274 g/cm³ @ Temp: 15 °C
Water solubility	SOLUBLE
Flash point	165 °C
pH	5.5-7.0 (25°C, 50mg/mL in H2O)
GHS signal word	Danger · Corrosive, Irritant / harmful
HS code	29094919
Grades available	Technical Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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