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DME

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DME Basic information
  • Product Name:DME
  • CAS:110-71-4
  • MF:C4H10O2
  • MW:90.12
  • EINECS:203-794-9
  • Mol File:110-71-4.mol
DME Chemical Properties
  • Melting point:-69 °C
  • Boiling point:85 °C(lit.)
  • Density 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.
  • solubility 1000g/l soluble
  • form Liquid
  • color Clear
  • explosive limit10.4%
  • Water Solubility Miscible
  • Sensitive Air Sensitive
  • λmaxλ: 220 nm Amax: 1.00
    λ: 250 nm Amax: 0.20
    λ: 300 nm Amax: 0.03
    λ: 350-400 nm Amax: 0.01
  • Merck 14,3224
  • BRN 1209237
  • Stability: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.
  • InChIKeyXTHFKEDIFFGKHM-UHFFFAOYSA-N
  • CAS DataBase Reference110-71-4(CAS DataBase Reference)
  • NIST Chemistry ReferenceEthane, 1,2-dimethoxy-(110-71-4)
  • EPA Substance Registry SystemEthylene glycol dimethyl ether (110-71-4)
Safety Information
MSDS
DME Usage And Synthesis
  • Chemical PropertiesColorless liquid
  • UsesSolvent commonly employed in organometallic reactions,1 particularly organolithium reactions.2 May also function as a ligand.3
  • UsesMonoglyme is used in the electrolyte solutions for lithium batteries.
  • DefinitionChEBI: A diether that is the 1,2-dimethyl ether of ethane-1,2-diol.
  • General DescriptionA 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 ReactionsHighly flammable. Slightly soluble in water.
  • Reactivity ProfileWhen 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)].
  • HazardModerate fire risk.
  • Health HazardIf ingested causes nausea, vomiting, cramps, weakness, coma.
  • Fire HazardBehavior in Fire: Containers may explode in fires.
  • Safety ProfileAn 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.
  • Purification MethodsTraces 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
DME(110-71-4)Related Product Information
DMESupplierMore
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