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℃
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)

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
Hazardous Substances Data	110-71-4(Hazardous Substances Data)