Diethylene glycol monomethyl ether

Structural formula
General
Surname	Diethylene glycol monomethyl ether
other names	2- (2-methoxyethoxy) ethanol; Methyl diglycol; DEGME;
Molecular formula	C 5 H 12 O 3
Brief description	colorless liquid with a very faint fruity odor
External identifiers / databases
EC number	203-906-6
ECHA InfoCard	100.003.551
PubChem	8134
Wikidata	Q1925579
properties
Molar mass	120.15 g mol −1
Physical state	liquid
density	1.03 g cm −3
Melting point	−65 ° C
boiling point	193 ° C
Vapor pressure	0.30 mbar (20 ° C)
solubility	completely miscible with water
Refractive index	1.432 (20 ° C)
safety instructions
GHS hazard labeling from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution
H and P phrases	H: 361d
	P: 280-202-308-311-405-501
MAK	10 ppm (50 mg m −3 )
Toxicological data	4090 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Diethylene glycol monomethyl ether (systematic: 2- (2-methoxyethoxy) ethanol ) is a chemical compound from the group of glycol ethers .

Extraction and presentation

Diethylene glycol monomethyl ether can be obtained by reacting methanol with ethylene oxide .

properties

Diethylene glycol monomethyl ether is a hygroscopic, difficult to ignite, low volatility (i.e. high boiling point) clear liquid that is completely miscible with water.

use

Diethylene glycol monomethyl ether is added to kerosene as an antifreeze agent, used as an additive to stoving enamels and as a solvent for printing pastes, stamp inks, leather dyes and ballpoint pen pastes.

safety instructions

The vapors of diethylene glycol monomethyl ether can form an explosive mixture with air ( flash point 87 ° C, ignition temperature 215 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on methyl diglycol in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
↑ Data sheet diethylene glycol monomethyl ether from Sigma-Aldrich , accessed on March 14, 2011 ( PDF ).
↑ Entry on 2- (2-methoxyethoxy) ethanol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on January 9, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Entry on methyl diglycol. In: Römpp Online . Georg Thieme Verlag, accessed on July 10, 2014.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on methyl diglycol in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .

[Sigma-2] Data sheet diethylene glycol monomethyl ether from Sigma-Aldrich , accessed on March 14, 2011 ( PDF ).

[CLP_100.003.551-3] Entry on 2- (2-methoxyethoxy) ethanol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on January 9, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .

[roempp-4] Entry on methyl diglycol. In: Römpp Online . Georg Thieme Verlag, accessed on July 10, 2014.