Dimethoxyethane

Used as a coupling agent for water-based dilute coatings (often used in mixtures); active solvent for water-based coatings; household and industrial cleaners, degreasers, and paint strippers, metal cleaners; basic solvent and coupling agent for solvent-based screen printing inks; coupling agent and solvent for vat dye fabrics; coupling agent and skin care agent in cosmetic formulations; stabilizer for agricultural pesticides; fixative for fragrances; coagulant for floor polishes.

Organic Synthesis and Catalytic Reactions

Polar Aprotic Solvents:

Used in Grignard reactions (e.g., preparation of phenylmagnesium bromide from bromobenzene and magnesium in EGDME) and alkyl lithium reagent reactions (e.g., coupling of n-butyllithium with halogenated hydrocarbons), stabilizing reaction intermediates due to its coordination ability;

Used as a solvent in Friedel-Crafts reactions to improve the solubility of catalysts (e.g., AlCl₃).

Polymerization Reaction Media:

Solvent for ring-opening polymerization of epoxides (e.g., preparation of polyether from propylene oxide), regulating polymer molecular weight distribution;

Controls reaction rate in anionic polymerization (e.g., styrene polymerization) to avoid chain termination.

2. Lithium Batteries and Electrochemistry

Electrolyte Solvents:

Early use in lithium metal battery electrolytes, compounded with dimethoxyethane (DME) to dissolve LiAsF₆, but its low boiling point (84℃) limited high-temperature performance;

Solid electrolyte precursor solvent, dissolving lithium salts and polymer matrices (e.g., PEO) to prepare gel electrolytes.

3. Coatings and Adhesives

Specialty Solvents:

Used as a diluent in nitrocellulose coatings to reduce system viscosity and improve film gloss;

Adjusts curing speed in polyurethane adhesives, compounded with alcohol solvents to promote the reactivity of isocyanate groups.

4. Other Industrial Uses

Used as a dye co-solvent in textile printing and dyeing to improve the solubility of disperse dyes;

Reaction medium for pharmaceutical intermediate synthesis (e.g., preparation of antibiotic raw materials);

Extractant, used to separate aromatic compounds from petroleum fractions.