Triethylene Glycol (TEG) is the third members of a homologous series of dihydroxyalcohols. TEG is produced in the Master Process by the direct hydration of ethylene oxide. TEG is co-produced with MEG and DEG. TEG is a colourless liquid.The main uses for triethylene glycol are based upon its hygroscopic quality. It is used as a dehydrating agent for natural gas pipelines where it removes the water from the gas before being condensed and reused in the system. It is also a dehumidifying agent in air-conditioning units.It is also used to make chemical intermediates such as plasticisers and polyester resins. It is an additive in hydraulic fluids and brake fluids, and TEG is also used as a solvent in many applications, including as a selective solvent for aromatics, and a solvent in textile dyeing.Triethylene glycol also has mild disinfectant qualities and, when volatised, is used as an air disinfectant for virus and bacteria control.



| Test Description | Specifications | Test Result |
| Appearance | colorless and transparent liquid, without suspension | |
| Purity ≥%wt | 99 | 99.9 |
| Specific Gravity(20/20 ºC) | 1.1215-1.1245 | 1.1234 |
| Moisture ≤ %wt | 0.1 | 0.006 |
| Color, Pt-Co≤ | 25 | 5 |
| Diethylene glycol,≤%wt | 0.5 | 0.04 |
| Acid(as CH3COOH), ≤%wt | 0.005 | 0.001 |
| ASH ≤%wt | 0.01 | 0.0008 |
Application
1.triethylene glycol is a solvent prepared from ethylene oxide and ethylene glycol.Triethylene glycol can be used:To prepare fatty acid gelators, which are used to gelate various edible and vegetable oils.As a solvent to prepare superparamagnetic iron oxide nanoparticles for in situ protein purification.As an absorbent agent in the subsea natural gas dehydration process.
2.In various plastics to increase pliability; in air disinfection.

3.Triethylene glycol is used as a plasticizer, as an additive for hydraulic fluids and brake fluids, and as a disinfectant. It is an active component of certain pigments, printing dyes, inks and paste. It finds application as a liquid desiccant and used in the dehydration of natural gas, carbon dioxide, hydrogen sulfide and air conditioning systems. It plays as an important role in anti-freeze and de-icing products, cleaning and furnishing care products, lubricant and greases.
4.Triethylene glycol is widely used as an excellent dehydrating agent for natural gas, oilfield associated gas and carbon dioxide; Used as solvent for nitrocellulose, rubber, resin, grease, paint, pesticide, etc; Used as air bactericide; Used as triethylene glycol ester plasticizer for PVC, polyvinyl acetate resin, glass fiber and asbestos pressing board; Used as anti drying agent of tobacco, fiber lubricant and desiccant of natural gas; It is also used in organic synthesis, such as the production of brake oil with high boiling point and good low temperature performance. It can be used in gas chromatography as extractant.