| Tetraethylene glycol dimethyl ether | |
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2,5,8,11,14-Pentaoxapentadecane |
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Other names
Bis[2-(2-methoxyethoxy)ethyl] ether, Tetraglyme, Dimethoxytetraglycol |
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| Identifiers | |
| Abbreviations | TEGDME, E181 |
| CAS number | 143-24-8 |
| PubChem | 8925 |
| EC number | 205-594-7 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C10H22O5 |
| Molar mass | 222.28 g mol−1 |
| Appearance | Colorless liquid |
| Density | 1.009 g/mL |
| Melting point |
-30 °C, 243 K, -22 °F |
| Boiling point |
275 °C, 548 K, 527 °F |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
1134.6 kJ/mol |
| Std enthalpy of combustion ΔcH |
6196.5 kJ/mol |
| Hazards | |
| EU classification | Irritant (Xi) |
| R-phrases | R19, R43 |
| S-phrases | S24, S36 |
| NFPA 704 |
1
0
0
|
| Flash point | 141 °C |
| Related compounds | |
| Related | glycol ethers |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Tetraethylene glycol dimethyl ether 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.