Tetraethylene glycol dimethyl ether
Names | |
---|---|
IUPAC name
2,5,8,11,14-Pentaoxapentadecane | |
Other names
Bis[2-(2-methoxyethoxy)ethyl] ether, Tetraglyme, Dimethoxytetraglycol | |
Identifiers | |
143-24-8 | |
Abbreviations | TEGDME, E181 |
EC Number | 205-594-7 |
Jmol interactive 3D | Image |
PubChem | 8925 |
| |
Properties | |
C10H22O5 | |
Molar mass | 222.28 g·mol−1 |
Appearance | Colorless liquid |
Density | 1.009 g/mL |
Melting point | −30 °C (−22 °F; 243 K) |
Boiling point | 275 °C (527 °F; 548 K) |
Miscible[1] | |
Thermochemistry | |
Std enthalpy of formation (ΔfH |
1134.6 kJ/mol |
Std enthalpy of combustion (ΔcH |
6196.5 kJ/mol |
Hazards | |
Template:H360 | |
Template:P201, Template:P308 + P313 | |
EU classification (DSD) |
Irritant (Xi) |
R-phrases | R19, R43 |
S-phrases | S24, S36 |
NFPA 704 | |
Flash point | 141 °C (286 °F; 414 K) |
Related compounds | |
Related |
glycol ethers |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Tetraethylene glycol dimethyl ether (also called tetraglyme) is a polar aprotic solvent with excellent chemical and thermal stability. Its high boiling point and stability makes it an ideal candidate for separation processes and high temperature reactions. TEGDME is also used in Lithium-ion battery technology and combined with Trifluoroethanol as a working pair for organic absorption heat pumps.
References
- Hyo-Jun Ahn, Ki-Won Kim, Jou-Hyun Ahn, Kwon-Koo Cho, Tae-Hyun Nam, Jong-Uk Kim, Gyu-Bong Cho; Ho-Suk Ryu (2006). "Discharge behavior of lithium/sulfur cell with TEGDME based electrolyte at low temperature". Journal of Power Sources (Review) (1): 201–206. doi:10.1016/j.jpowsour.2005.12.061.
- Karl Stephan; Andreas Genssle (2000). "Analysis of the process characteristics of an absorption heat transformer with compact heat exchangers and the mixture TFE–E181". International Journal of Thermal Sciences (Review) (1): 30–38. doi:10.1016/S1290-0729(00)00197-5.
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