Specification
| Product Name | Diethylene glycol dimethyl ether |
|---|---|
| Other Names | DEGDME |
| CAS No. | 111-96-6 |
| EINECS No. | 203-924-4 |
| MF | C6H14O3 |
| Molecular weight | 134.17 |
| Purity | 99.0% |
| Appearance | Colorless liquid |
| Density | 0.944 g/mL at 20 °C (lit.)0.939 g/mL at 25 °C (lit.) |
| Melting point | -64 °C (lit.) |
| Boiling point | 162 °C (lit.) |
| Flashing point | 134.6°F |
Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.
Hazard classification
- H226 Flammable liquid and vapour
- H360FD May damage fertility. May damage the unborn child
- EUH019 May form explosive peroxides.
Precautionary statements (1)
- P203 Obtain, read and follow all safety instructions before use
European Chemicals Agency. "bis (2-methoxyethyl) ether, Index No. 603-139-00-0." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
Substance identity verified against the registry entry on 2026-09-02.
Packaging and shipping
Diethylene glycol dimethyl ether (DEGDME) is an important member of the ethylene glycol dimethyl ether family. It is renowned for its high boiling point (~162°C), high flash point (~57-70°C), wide liquid range, and excellent chemical and electrochemical stability. It can effectively solvate alkali metal ions and exhibits outstanding stability towards strong basic organometallic reagents (such as Grignard reagents, organic lithium). These properties make it the preferred solvent for cutting-edge applications that aim for high operational safety, high-temperature reaction conditions, long-lasting process duration, and high-voltage electrochemical window.
Product Description
Anhui Eapearl Chemical Co., Ltd., as a professional supplier in the fields of specialty chemicals and high-purity solvents in China, relying on advanced production purification technology and strict quality management system, now offers the market high-purity and high-performance diethylene glycol dimethyl ether (DEGDME). We are committed to transforming this top-notch non-protonic polar solvent, which has high boiling point, high flash point, wide electrochemical window and excellent chemical stability, into a key enabling material for achieving technological breakthroughs and process optimization in next-generation high-security batteries, high-end organic synthesis and precision manufacturing and other fields.
Product Core Positioning
Diethylene glycol dimethyl ether (DEGDME) is an important member of the ethylene glycol dimethyl ether family. It is renowned for its high boiling point (~162°C), high flash point (~57-70°C), wide liquid range, and excellent chemical and electrochemical stability. It can effectively solvate alkali metal ions, and exhibits outstanding stability towards strong basic organometallic reagents (such as Grignard reagents, organic lithium). These properties make it the preferred solvent for cutting-edge applications that aim for high operational safety, high-temperature reaction conditions, long-lasting process duration, and high-voltage electrochemical window.
Core application value and solutions
Key solvent for the new generation of high-security battery electrolyte: As the core solvent or key additive for the electrolytes of lithium-sulfur batteries, sodium-ion batteries, potassium-ion batteries, and high-pressure lithium-metal batteries, DEGDME, due to its high boiling point providing high thermal stability, high flash point ensuring high operational safety, and its excellent solubility and inhibition effect on polysulfides, can significantly enhance the cycle life, capacity retention rate, and high-temperature safety of the batteries. Its wide electrochemical window (up to over 4.3V) enables it to be compatible with higher-voltage cathode materials, making it one of the key materials for developing battery systems with high energy density, long cycle life, and high safety.
High-end organic synthesis and pharmaceutical research: In Grignard reactions, organic lithium/sodium reactions, anionic polymerization, coordination polymerization, and various condensation and alkylation reactions that require high-temperature conditions, DEGDME is an ideal high-boiling-point non-polar reaction medium. It can effectively stabilize active metal-organic reagents, increase reaction rates and yields, and due to its high boiling point, allows reactions to proceed at higher temperatures to accelerate kinetics. It is widely used in the synthesis of pharmaceutical intermediates, pesticide raw materials, and high-performance polymers (such as SBS, polyurethanes).
Special industrial cleaning and electronic chemicals: Thanks to its strong dissolving power, high boiling point (low volatility), and low residue properties, high-purity DEGDME can be used for long-term precise cleaning in the manufacturing processes of semiconductor chips, display panels, and precision instruments, effectively removing residual photoresist, resin, grease, and soldering flux, meeting the strict requirements of high-end manufacturing for process windows and cleanliness.
Gas purification and special functional fluids: Due to their selective physical absorption capabilities for acidic gases (such as H₂S, CO₂), they can be used as efficient absorbents in processes such as natural gas desulfurization and syngas purification, featuring large absorption capacity and low regeneration energy consumption. Additionally, they can also be used to prepare special high-temperature heat-conducting fluids or hydraulic fluids.
High-end coatings, inks and resin processing additives: As high-boiling-point solvents, they can be used in special coating and ink formulations that require slow evaporation to achieve a smooth coating. In resin synthesis, they can be used as reactive solvents or leveling aids to improve system compatibility and reduce processing viscosity.
Anhui Eapearl Chemical Co., Ltd., with high-end specialty solvents such as diethylene glycol dimethyl ether (DEGDME), has always focused on the demands of cutting-edge technology and precision manufacturing. We are not only a supplier of raw materials, but also a reliable partner for you to overcome technical challenges and achieve product innovation. Choosing us means choosing professionalism, safety and excellence.
Source
Delivery&Payment method
Frequently asked
In what packaging is Diethylene glycol dimethyl ether shipped?
Standard formats are Drum (180 kg), IBC Drum (1127 kg), ISO tank (20ft) (24–26 m³), ISO tank (40ft) (48–50 m³). Other packaging can be arranged for full-container orders.
Is a safety data sheet available for Diethylene glycol dimethyl ether?
Yes. A full safety data sheet for CAS 111-96-6 is published and linked from this page; a signed copy is issued with the shipping documents.
What purity do you supply?
The standard grade is 99.0%. Tighter specifications are confirmed against the production batch before shipment.
