Diethylene Glycol (DEG)
Diethylene glycol, more typically referred to as DEG is most typically used as a chemical intermediate in the manufacture of polyester resins and polyester polyols. It is also considered by many to be the glycol of choice as a drying agent for natural gas.
Diethylene glycol is typically produced as a by-product in the production of monoethylene glycol via the liquid phase hydration of ethylene oxide. In the United States alone, some 839 million pounds of diethylene glycol are produced annually.
Pure diethylene glycol is a colorless and odorless liquid at room temperature.
| Molecular Weight | 106.12 g/mole |
| Formula | O(CH2CH2OH)2 |
| CAS # | 111-46-6 |
| Other Synonyms | 2,2’-Dihydroxyethyl ether 2-(2-Hydroxyethoxy)ethanol Ethylene diglycol |
| Melting Point | 13.26 °F (-10.41 °C) |
| Boiling Point | 473.07 °F (245.04 °C) |
| Density | 9.320 lb/gal (1.117 gm/cm3) at 70 °F |
| Vapor Pressure | <0.01 mmHg at 70 °F |
| Viscosity | 16.20 cP at 40 °C |
| Thermal Conductivity | 0.120 BTU/hr-ft-F (0.2069 W/m-C) at 40 °C |
| Critical Temperature | 880.68 °F (471.49 °C) |
| Critical Pressure | 34,503 mm Hg (45.40 atm) |
| Critical Volume | 0.0471 ft3/lb (0.0294 m3/kg) |
The information contained herein is correct to the best of our knowledge and is believed to be reliable. However, no guarantee of accuracy is made and the products discussed are sold without warranty, expressed or implied, as to their use and application.