- Product Name:
- 1,2-Ethanediol dimethyl ether
- 1,2-DIMETHOXYETHANE, 99%1,2-DIMETHOXYETHANE, 99%1,2-DIMETHOXYETHANE, 99%
- 1,2-Dimethoxyethane( 99.5%, HyDry, with molecular sieves, Water≤50 ppm (by K.F.))
- 1,2-Dimethoxyethane(99%, HyDry, Water≤50 ppm (by K.F.))
- 1,2-Dimethoxyethane Factory
- 1,2-Dimethoxyethane, stab. with 0.01% BHT
- Product Categories:
- Polymer chemistry
- Synthetic Flavours & Fragrances
- Amber Glass Bottles
- Analytical Reagents
- CHROMASOLV for HPLC
- Chromatography Reagents &
- HPLC &
- HPLC Grade Solvents (CHROMASOLV)
- HPLC/UHPLC Solvents (CHROMASOLV)
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- UHPLC Solvents (CHROMASOLV)
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- Mol File:
DME Chemical Properties
- Melting point:
- -69 °C
- Boiling point:
- 85 °C(lit.)
- 0.867 g/mL at 25 °C(lit.)
- vapor density
- 3.1 (20 °C, vs air)
- vapor pressure
- 48 mm Hg ( 20 °C)
- refractive index
- n20/D 1.379(lit.)
- Flash point:
- 32 °F
- storage temp.
- Store below +30°C.
- 1000g/l soluble
- explosive limit
- Water Solubility
- Air Sensitive
- λ: 220 nm Amax: 1.00
λ: 250 nm Amax: 0.20
λ: 300 nm Amax: 0.03
λ: 350-400 nm Amax: 0.01
- Stable, but explosive peroxides may form on exposure to air. Test for the presence of peroxides before heating. Avoid heat, light, air. Highly flammable. Store under inert gas.
- -0.21 at 25℃
- CAS DataBase Reference
- 110-71-4(CAS DataBase Reference)
- NIST Chemistry Reference
- Ethane, 1,2-dimethoxy-(110-71-4)
- EPA Substance Registry System
- Ethylene glycol dimethyl ether (110-71-4)
DME Usage And Synthesis
1,2-Dimethoxyethane is derived from the reaction of ethylene glycol monomethyl ether with sodium metal and methyl chloride. The ethylene glycol monomethyl ether and the metal sodium were refluxed together until the metal sodium was completely reacted, the temperature was lowered to 45° C., and methyl chloride was introduced. After the reaction is completed, fractional distillation is performed to collect fractions at 84-85.5°C to obtain 1,2-Dimethoxyethane.
Solvent commonly employed in organometallic reactions,1 particularly organolithium reactions.2 May also function as a ligand.3
Monoglyme is used in the electrolyte solutions for lithium batteries.
1,2-Dimethoxyethane is widely used as a solvent for electrolyte of lithium batteries, polysilicones, oligo- and polysaccharides. It plays an important role in Grignard reactions, Suzuki reactions and Stille couplings in organometallic chemistry and in pharmaceutical synthesis. It is a higher boiling point solvent and is used as an alternative to diethyl ether and tetrahydrofuran. It is used for the etching of synthetic polymers like polytetrafluoroethylene and other fluoropolymers with alkali metal dispersions.
ChEBI: A diether that is the 1,2-dimethyl ether of ethane-1,2-diol.
A liquid with a sharp odor. Less dense than water. Flash point 34°F. Mildly toxic by ingestion and inhalation. Severely irritates skin and eyes. Vapors heavier than air. Used to make other chemicals.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
When the solvent, 1,2-Dimethoxyethane, was poured into a funnel previously used to introduce the lithium aluminum hydride, a fire ignited the funnel, [MCA Case History 1182(1966)].
Moderate fire risk.
If ingested causes nausea, vomiting, cramps, weakness, coma.
Behavior in Fire: Containers may explode in fires.
Flammability and Explosibility
An experimental teratogen. Other experimental reproductive effects. Readdy forms an explosive peroxide. A very dangerous fire hazard when exposed to heat, flame, or oxidzers. Mixture with lithium tetrahydroaluminate may ignite orexplode if heated. When heated to decomposition it emits acrid smoke and fumes. See also GLYCOL ETHERS.
Traces of water and acidic materials have been removed from it by refluxing with Na, K or CaH2, decanting and distilling from Na, K, CaH2 or LiAlH4. The reaction has been speeded up by using vigorous high-speed stirring with molten potassium. For virtually complete elimination of water, 1,2-dimethoxyethane has been dried with Na-K alloy until a characteristic blue colour is formed in the solvent at Dry-ice/cellosolve temperatures: the solvent is kept with the alloy until distilled for use [Ward J Am Chem Soc 83 1296 1961]. Alternatively, glyme, refluxed with benzophenone and Na-K, is dry enough if, on distillation, it gives a blue colour of the ketyl immediately on addition to benzophenone and sodium [Ayscough & Wilson J Chem Soc 5412 1963]. It has also been purified by distillation under N2 from sodium benzophenone ketyl (see above). [Beilstein 1 IV 2376.]
DME Preparation Products And Raw materials
- 0563-8152601 13805622345
- 400-62063333-1 15601730970
- 021-60899189-8001 18918189673
- 021-57681602-802 17302146015
- 025-84918180 18014482516
- Ethylene glycol diphenyl ether
- Ethylene glycol
- ETHYLENE GLYCOL MONO-TERT-BUTYL ETHER
- Ethyl propenyl ether
- ETHYLENE GLYCOL DI-N-BUTYL ETHER
- ETHYLENE GLYCOL MONOSTEARATE
- 2-Hydroxyethyl salicylate
- Ethylene glycol diacetate
- Ethylene dimethacrylate
- Ethylene glycol diethyl ether
- Ethyl 2-hydroxyethyl sulfide
- Ethylene glycol diglycidyl ether