Triethylene Glycol (TEG) is a chemical compound from the glycol family, commonly used in various industries due to its strong moisture-absorbing properties and chemical stability. It consists of three ethylene units and four hydroxyl groups.

​

Chemical and Physical Properties:

• Chemical Formula: C6H14O4C_6H_{14}O_4

• Molecular Weight: 150.17 g/mol

• Appearance: Transparent, colorless, viscous liquid

• Boiling Point: Approximately 285°C

• Freezing Point: About -7°C

• Density: ~1.125 g/cm³ at 20°C

• Odor: Odorless

​

Key Characteristics:

1. Excellent hygroscopic (moisture-absorbing) properties.

2. High boiling point, making it suitable for applications requiring thermal stability.

3. Low volatility under standard conditions.

4. Soluble in water and polar solvents.

Applications of Triethylene Glycol

​

1. In the Oil and Gas Industry:

• Dehydration of Natural Gas:
  TEG is widely used to remove water vapor from natural gas to prevent hydrate formation and corrosion.

• Anti-freeze Applications:
  Effective in preventing freezing in gas pipelines.

2. As a Humectant:

• Used in air conditioning systems and dehumidifiers to control humidity.

3. In the Production of Anti-freeze:

• A component in antifreeze formulations due to its low freezing point.

4. In Chemical Manufacturing:

• As a solvent or intermediate in the production of various chemicals.

5. In Fog Machines:

• Used to create artificial fog in theatrical or industrial applications.

6. In the Textile Industry:

• Serves as a lubricant and softener during fabric production.

​

Comparison to Other Glycols:

• TEG is lighter and less viscous than Tetraethylene Glycol (TetraEG).

• Its applications are broader in gas dehydration and moisture control, whereas TetraEG is often used in resin production and specialized chemical processes.

If you need further details about its specifications or particular industrial uses, feel free to ask!