Chemical Name: Triethylene Glycol
Trade Name: TEG
Introduction:
Triethylene Glycol (TEG) is a viscose, odorless and colorless chemical liquid with chemical formula C6H14O4.
TEG is produced as a co-product from the reaction between ethylene oxide and water. It is miscible with water and soluble in ethanol, acetone, acetic acid, glycerine, pyridine and aldehydes. It is slightly soluble in diethyl ether, and insoluble in oil, fat and most hydrocarbons.
General Applications:
TEG is used in a variety of applications. The oil and gas industries uses TEG to dehydrate the natural gas as well as other gases including CO2, H2S and other oxygenated gases. This compound can be used as a solvent in many chemical processes. Like DEG, TEG is used as plasticizers, intermediate and absorbent. TEG is also useful in anti-freezing, de-icing and automotive care products.
| No. | Test | Standard | References |
| 1 | Purity, % | 97 Min | ASTM E 202 |
| 2 | Color (Pt/Co) | 25 max | ASTM D 891 |
| 3 | Specific gravity (@ 20 ˚C) | 1.124 – 1.126 | ASTM D 891 |
| 4 | TEG (T.TEG), % | 1 Max | ASTM E 202 |
| 6 | DEG, % | 2 Max | ASTM E 202 |
| 7 | Water, % | 0.05 Max | ASTM E 203 |
| 8 | Acidity, % | 0.01 Max | ASTM D 1613 |
| 9 | Ash, % | 0.005 Max | DC – 254/A |
Safety, Handling & Storage:
Full information on the safety, handling and storage of TEG is available in the corresponding Material Safety Data Sheet (MSDS).