1,2-Dimethoxyethane丨CAS 110-71-4

1,2-Dimethoxyethane丨CAS 110-71-4, also known as ethylene glycol dimethyl ether, is an organic solvent with the chemical formula C4H10O2. It is a colorless, volatile liquid with a mild ether-like odor and is miscible with water and most organic solvents. DME belongs to the class of glycol ethers and is widely valued for its solvating ability, low viscosity, and excellent coordination properties with metal ions.

1. Electrolyte Solvent in Lithium Batteries
DME is extensively used as a solvent in lithium battery electrolytes, especially in lithium-sulfur and lithium-oxygen batteries. Its ability to dissolve lithium salts like LiPF₆ and its high dielectric constant make it ideal for electrochemical applications.
● Lithium-sulfur batteries: DME provides high ionic conductivity and low viscosity, which facilitates ion transport and enhances battery performance.
● Battery cycling stability: It is often used in combination with other ethers (e.g., dioxolane) to improve cycling life and minimize side reactions.
2. Solvent in Organic Synthesis and Grignard Reactions
1,2-Dimethoxyethane丨CAS 110-71-4 is a polar aprotic solvent, which makes it suitable for use in various organic synthesis processes, including Grignard reactions and organolithium chemistry.
● Coordination with metal ions: DME stabilizes organometallic reagents by coordinating with metal centers, enhancing the reactivity and selectivity of the reactions.
● Nucleophilic substitutions and reductions: It is used in reactions involving strong nucleophiles or reducing agents.
3. Chromatography and Analytical Chemistry
Due to its excellent solvating properties and low UV absorbance, DME is employed as a mobile phase component or solvent in high-performance liquid chromatography (HPLC) and other analytical techniques.
● Compatibility with polar analytes: Its miscibility with water and organic solvents makes it suitable for analyzing a wide range of polar compounds.
4. Polymer and Resin Processing
DME is used in the formulation of resins, coatings, and polymer solutions, especially when a low-boiling-point, polar solvent is required.
● Solvent for polyimides and polyurethanes: It aids in dissolving and processing polymeric materials without degradation.
● Volatile solvent: Its volatility allows for rapid evaporation during curing or drying stages.
5. Cleaning and Degreasing Agent
Its ability to dissolve both polar and nonpolar substances makes DME an effective industrial cleaner and degreaser, especially for precision cleaning in electronics and laboratory settings.
● Microelectronic cleaning: DME is used in removing fluxes, oils, and particulates from sensitive equipment due to its low residue and high volatility.

1. High Solvency Power
1,2-Dimethoxyethane丨CAS 110-71-4 dissolves a wide range of organic and inorganic compounds, including salts, organometallics, and polymers, making it a versatile solvent for many applications.
2. Low Viscosity and High Volatility
Its low viscosity improves mass transfer in reactions and battery systems, while high volatility allows for easy removal post-application or during drying processes.
3. Chemical Stability and Compatibility
DME is chemically stable under most reaction conditions and is compatible with various organic and inorganic chemicals, making it a reliable choice for industrial and lab-scale processes.
4. Enhanced Electrochemical Performance
In battery applications, DME contributes to improved ionic conductivity, cycle life, and thermal stability, supporting the development of next-generation energy storage systems.