Diethylene glycol diethyl ether

Names
Preferred IUPAC name

1-Ethoxy-2-(2-ethoxyethoxy)ethane

Other names

Diethyl carbitol
Bis(2-ethoxyethyl) ether
Ethyl diglyme
Diethyldiethylene glycol
3,6,9-Trioxaundecane
Diethyldiglycol

Identifiers

CAS Number

* 112-36-7 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:44664

ChemSpider |

* 21106583

PubChem CID

* 8179

UNII |

* ZH086O935Z Y

InChI

* InChI=1S/C8H18O3/c1-3-9-5-7-11-8-6-10-4-2/h3-8H2,1-2H3

Key: RRQYJINTUHWNHW-UHFFFAOYSA-N

SMILES

* CCOCCOCCOCC

Properties

Chemical formula

| C8H18O3
Molar mass | 162.22 g/mol
Appearance  | colorless liquid
Density | 0.9021 g/cm3[1]
Melting point |  −47.7 °C (−53.9 °F; 225.5 K)
Boiling point |  188 °C (370 °F; 461 K)

Solubility in water

| very soluble
Solubility | very soluble in ethanol, organic solvents
soluble in ethyl ether
log P | 0.39
Vapor pressure | 0.520 mmHg

Refractive index (nD)

| 1.40962[1]
Viscosity | 1.238 mPa·s[1]
Hazards
GHS pictograms |
GHS Signal word | Warning

GHS hazard statements

| HH315Script error: No such module "Preview warning".Category:GHS errors, HH319Script error: No such module "Preview warning".Category:GHS errors

GHS precautionary statements

| PP264Script error: No such module "Preview warning".Category:GHS errors, PP264+P265Script error: No such module "Preview warning".Category:GHS errors, PP280Script error: No such module "Preview warning".Category:GHS errors, PP302+P352Script error: No such module "Preview warning".Category:GHS errors, PP305+P351+P338Script error: No such module "Preview warning".Category:GHS errors, PP321Script error: No such module "Preview warning".Category:GHS errors, PP332+P317Script error: No such module "Preview warning".Category:GHS errors, PP337+P317Script error: No such module "Preview warning".Category:GHS errors, PP362+P364Script error: No such module "Preview warning".Category:GHS errors
Flash point |  82 °C (180 °F; 355 K)

Autoignition
temperature

|  205 °C (401 °F; 478 K)
Related compounds

Related compounds

* Diethylene glycol dimethyl ether
* Diethylene glycol

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Tracking categories (test):

* SizeSet

Diethylene glycol diethyl ether (DEGDEE) is an organic solvent with a high boiling point. It has found use as an electrolyte for lithium-ion batteries.[2][3]

## References

1. ↑ 1.0 1.1 1.2 Ku, Hsu-Chen; Tu, Chein-Hsiun (2000-03-01). "Densities and Viscosities of Seven Glycol Ethers from 288.15 K to 343.15 K". Journal of Chemical & Engineering Data 45 (2): 391–394. doi:10.1021/je990281u. ISSN 0021-9568. https://pubs.acs.org/doi/10.1021/je990281u. Retrieved 2025-12-07.
2. ↑ Fang, Shaohua; Wang, Guojun; Qu, Long; Luo, Dong; Yang, Li; Hirano, Shin-ichi (2015-10-20). "A novel mixture of diethylene glycol diethylether and non-flammable methyl-nonafluorobutyl ether as a safe electrolyte for lithium ion batteries" (in en). Journal of Materials Chemistry A 3 (42): 21159–21166. doi:10.1039/C5TA05242D. ISSN 2050-7496. https://pubs.rsc.org/en/content/articlelanding/2015/ta/c5ta05242d.
3. ↑ Han, Sang-Min; Kim, Jae-Hong; Kim, Dong-Won (2014-04-16). "Evaluation of the Electrochemical Performance of a Lithium-Air Cell Utilizing Diethylene Glycol Diethyl Ether-Based Electrolyte". Journal of the Electrochemical Society 161 (6): –856. doi:10.1149/2.022406jes. ISSN 1945-7111.

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*[CID]: Compound ID