Ethylene glycol monopropyl ether

Structural formula
General
Surname	Ethylene glycol monopropyl ether
other names	Glycol monopropyl ether 2- (propyloxy) ethanol EGnPE Propyl glycol Propyl CELLOSOLVE 2-propoxyethanol Ethylene glycol propyl ether
Molecular formula	C 5 H 12 O 2
Brief description	Inflammable, colorless to yellowish, almost odorless, oily liquid
External identifiers / databases
CAS number 2807-30-9 EC number 220-548-6 ECHA InfoCard 100.018.680 PubChem 17756 Wikidata Q1371478
properties
Molar mass	104.15 g mol −1
Physical state	liquid
density	0.91 g cm −3
Melting point	−75 ° C
boiling point	150 ° C
Vapor pressure	1.73 mbar (20 ° C)
solubility	miscible with water soluble in alcohol and ether
Refractive index	1.413 (20 ° C)
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 226-311-319 P: 210-280-302 + 352-305 + 351 + 338-312
MAK	Switzerland: 20 ml m −3 or 85 mg m −3
Toxicological data	3090 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

Ethylene glycol monopropyl ether is a chemical compound from the group of glycol ethers .

Extraction and presentation

Ethylene glycol monopropyl ether is obtained by reacting ethylene oxide with 1-propanol and a suitable catalyst . In 2002 more than 4,500 tons were produced in the USA.

use

Ethylene glycol monopropyl ether is used as a solvent in the coatings industry and in printing inks. Today it is only reserved for a few special applications. It has been replaced industrially by other similar solvents.

properties

Glycol monoalkyl ethers are inert towards light metals such as aluminum or magnesium. However, slow superficial corrosion can be observed at the boiling point.

safety instructions

The vapors of ethylene glycol monopropyl ether can form an explosive mixture with air ( flash point 51 ° C, ignition temperature 230 ° C). The compound reacts violently with strong oxidizing agents .

Individual evidence

1. ↑ ^{a b c d e f g h i j k} Entry on ethylene glycol monopropyl ether in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
2. ↑ Entry on Ethylene Glycol Mono-n-propyl Ether at TCI Europe, accessed on June 27, 2011.
3. ↑ Data sheet Ethylene glycol monopropyl ether from Sigma-Aldrich , accessed on October 16, 2016 ( PDF ).
4. ↑ Entry on 2- (propyloxy) ethanol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
5. ↑ Swiss Accident Insurance Fund (Suva): Limit values ​​- current MAK and BAT values (search for 2807-30-9 or ethylene glycol monopropyl ether ), accessed on November 2, 2015.
6. ↑ OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for ethanol, 2-propoxy- , accessed on November 6, 2014.
7. ↑ BASF - Solvent overview
8. ↑ C. Yoshimura, T. Ogura, in Keikinzoku 32, 443-50 (1982); it is unclear whether atmospheric oxygen was excluded. Addition of water suppressed the aluminum corrosion, accelerated the magnesium corrosion. (Journal of Japan Institute of Light Metals)
9. ↑ Pohanish, RP; Greene, SA: Wiley Guide to Chemical Incompatibilities , John Wiley and Sons Inc. 2003, ISBN 0-47 1-23859-7 .