Ethylene glycol dimethyl ether , AR,99.5%(GC) , 110-71-4

Synonym(s):
DME;1,2-Dimethoxyethane;Monoglyme;Ethylene glycol dimethyl ether;Ethylene glycol dimethyl ether solution

CAS NO.：110-71-4

Empirical Formula: C4H10O2

Molecular Weight: 90.12

MDL number: MFCD00008502

EINECS: 203-794-9

PRODUCT 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
• Odor: water-wh. liq., sharp ethereal odor
• explosive limit: 10.4%
• Water Solubility: Miscible
• Sensitive: Air Sensitive
• λmax: 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
• Merck: 14,3224
• BRN: 1209237
• Dielectric constant: 7.2（25℃）
• 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.
• InChIKey: XTHFKEDIFFGKHM-UHFFFAOYSA-N
• LogP: -0.21 at 25℃

Description and Uses

1,2-Dimethoxyethane (DME) is a liquid ether used as an aprotic solvent. It is also known as glyme, monoglyme, dimethyl glycol, ethylene glycol, dimethyl ether, dimethyl cellosolve, and DME. It has the special ability to form chelates thanks to the high flexibility of its chains. Moreover, DME is the molecular model system for the poly(oxyethylene) chain. It is commonly used as a solvent in batteries and in organometallic reaction chemistry since it has higher boiling than diethyl ether and THF[1].

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.

Safety

• Symbol(GHS): GHS02,GHS07,GHS08
• Signal word: Danger
• Hazard statements: H225-H315-H332-H360FD
• Precautionary statements: P202-P210-P233-P303+P361+P353-P304+P340+P312-P308+P313
• Hazard Codes: F,T
• Risk Statements: 60-61-11-19-20-38
• Safety Statements: 53-45
• RIDADR: UN 2252 3/PG 2
• WGK Germany: 1
• RTECS: KI1451000
• F: 3-10-23
• Autoignition Temperature: 396 °F
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• HS Code: 29091900