Other Names:
TEG, 2,2′-(1,2-Ethanediylbis(oxy))ethanol, Triglycol, Triglycol Ether, 2-[2-(2-hydroxyethoxy)ethoxy]ethanol, 2,2′-Oxybisethanol
Specification Summary
- Purity: ≥99% (industrial/technical grade)
- Form: Clear, colorless, moderately viscous liquid
- CAS No.: 112-27-6
- Molecular Formula: C₆H₁₄O₄
- Molecular Weight: 150.17 g/mol
Product Description
Triethylene Glycol (TEG) is a clear, colorless, odorless, and moderately viscous liquid with a mild, slightly sweet taste. It is highly hygroscopic and completely miscible with water and many organic solvents, but immiscible with benzene, toluene, and gasoline. TEG is non-corrosive and does not exhibit alkaline properties. With a high boiling point and low volatility, it is stable under normal conditions and valued for its excellent solvent, humectant, and dehydrating properties.
Triethylene Glycol Specification Table
| Property | Value/Range | Notes/Method |
| Appearance | Clear, colorless liquid | Visual |
| Purity | ≥99% | Industrial grade |
| Molecular Weight | 150.17 g/mol | |
| Boiling Point | 285–288°C | At 760 mm Hg |
| Melting Point | -7°C | |
| Density (20°C) | 1.124–1.126 g/cm³ | ASTM D4052 |
| Viscosity (20°C) | 48.9 mPa·s | ASTM D445 |
| Flash Point (Closed Cup) | 165–177°C | ASTM D93 |
| Vapor Pressure (20°C) | <0.01 mm Hg | ASTM D2879 |
| Solubility in Water | Completely miscible | |
| pH (50 mg/mL, 25°C) | 5.5–7.0 | |
| Odor | Very mild, slightly sweet | |
| Surface Tension (25°C) | 44.7 mN/m | |
| Refractive Index (20°C) | 1.453 | ASTM D1218 |
| Hygroscopicity | Highly hygroscopic |
Downloadable TDS:
A comprehensive Technical Data Sheet (TDS) is available for download, providing detailed mechanical, thermal, and electrical properties, as well as processing guidelines for polystyrene
Application Sectors and Industries of Triethylene Glycol
Natural Gas Dehydration
TEG is the industry-standard liquid desiccant for removing water from natural gas streams. Its high affinity for water and thermal stability ensure efficient, continuous operation in gas processing plants, preventing hydrate formation and corrosion in pipelines.
Air Treatment and Dehumidification
Used in commercial and industrial air conditioning systems, TEG efficiently absorbs moisture from air, maintaining comfortable humidity levels and protecting sensitive equipment from moisture-related damage.
Plasticizer Manufacturing
TEG acts as a plasticizer in the production of cellophane, vinyl, and other polymers. It imparts flexibility, durability, and workability to plastics, films, and synthetic resins used in packaging, construction, and consumer goods.
Solvent for Inks, Dyes, and Coatings
Its excellent solvency makes TEG a preferred solvent in printing inks, dyes, and coatings. It ensures optimal pigment dispersion, viscosity control, and improved print quality in graphic arts and industrial applications.
Cement Grinding Aid
TEG is used as a grinding aid in cement manufacturing, enhancing the efficiency of the grinding process and improving the quality and performance of the final product.
Heat Transfer Fluids
Due to its high boiling point and thermal stability, TEG is formulated into heat transfer fluids for industrial heating, cooling, and refrigeration systems, ensuring safe and efficient temperature regulation.
Textile and Leather Processing
TEG serves as a humectant, softener, and lubricant in textile and leather industries. It enhances fiber pliability, dye uptake, and end-product quality in fabrics and leather goods.
Chemical Intermediate
TEG is a versatile intermediate in the synthesis of emulsifiers, lubricants, surfactants, and specialty chemicals, supporting diverse chemical manufacturing processes.
Cleaning and Detergent Formulations
Its solvency and hygroscopicity make TEG valuable in cleaning agents, detergents, and industrial cleaners, improving cleaning efficiency and product stability.
Personal Care and Cosmetics
TEG is used as a humectant and solvent in personal care products such as creams, lotions, and hair care items, enhancing moisture retention and product texture.
Pharmaceuticals
In pharmaceuticals, TEG acts as a solvent and carrier for active ingredients in various formulations, ensuring product stability and efficacy.
Agricultural Chemicals
TEG is incorporated into pesticide and herbicide formulations as a solvent and carrier, improving application efficiency and product performance.
Packaging Types
- 220–230 kg Drums: Standard steel or HDPE drums for safe, efficient storage and transport of bulk liquid TEG.
- IBC Totes (1,000 liters): Intermediate bulk containers for large-scale industrial users, offering easy handling and dispensing.
- Bulk Tankers: For high-volume customers, TEG is delivered in insulated stainless-steel tankers to maintain product integrity during transit.
- Small Containers (20–25 liters): Sealed plastic or metal cans for laboratory use, pilot plants, or specialty applications.
- ISO Tank Containers: For international bulk shipments, ensuring secure, compliant, and efficient global transport.
Triethylene Glycol (TEG) is a high-purity, versatile glycol essential for gas dehydration, industrial processing, and specialty chemical applications. For comprehensive technical specifications, safety data, and handling guidelines, please request the downloadable TDS.
