What is triethylene glycol used for?

May 22, 2025 Leave a message

Triethylene glycol (CAS 112-27-6), referred to as TEG, is a colorless, odorless, viscous liquid. It has excellent solubility in water and many organic solvents, and has a high boiling point, low volatility, and is stable at room temperature. These characteristics enable it to be used in different industries.

 

1. Dehydration Agent in Natural Gas Processing
One of the main uses of triethylene glycol is in the natural gas industry as a dehydration agent. Natural gas often contains water vapor, which can cause corrosion in pipelines and equipment, and form hydrates that block the flow. Triethylene glycol absorbs water vapor from the natural gas stream efficiently. It can reduce the water content to very low levels, ensuring the gas is dry and safe for transportation and further processing.

 

Triethylene glycol


2. Humidifier and Dehumidifier in HVAC Systems
In heating, ventilation, and air conditioning (HVAC) systems, triethylene glycol plays a role in controlling humidity. As a humidifier, it can release moisture into dry air, improving indoor air quality and comfort. On the other hand, it can also act as a dehumidifier by absorbing excess moisture in the air, preventing issues like mold growth and condensation on surfaces.


3. Plasticizer and Solvent in the Chemical Industry
In the chemical industry, triethylene glycol functions as a plasticizer in the production of plastics and rubber. By adding it to these materials, manufacturers can increase their flexibility and durability. Additionally, it serves as a solvent, helping to dissolve various substances in the formulation of paints, inks, and adhesives, ensuring a smooth and consistent product.


4. Cosmetics and Personal Care Products
Triethylene glycol is also used in cosmetics and personal care items. In lotions and creams, it helps to retain moisture, keeping the skin hydrated. It can also act as a solvent for other ingredients, ensuring they blend well and are evenly distributed throughout the product.

 

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CAS 112-27-6

 

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