Home Categories Analytical Chemistry Ethylene glycol dimethyl ether
A3947912

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

Update time: 2022-07-08

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
3-10-23
Autoignition Temperature 396 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29091900

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