Ethyl propionate

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Structural formula
Structural formula of ethyl propionate
General
Surname Ethyl propionate
other names
  • Ethyl propanoate
  • Ethyl propionate
Molecular formula C 5 H 10 O 2
Brief description

colorless liquid with a fruity odor

External identifiers / databases
CAS number 105-37-3
EC number 203-291-4
ECHA InfoCard 100.002.993
PubChem 7749
Wikidata Q2740687
properties
Molar mass 102.13 g mol −1
Physical state

liquid

density

0.89 g cm −3

Melting point

−74 ° C

boiling point

99 ° C

Vapor pressure

26.7 mbar (20 ° C)

solubility
  • little in water (17 g l −1 at 20 ° C)
  • miscible with ethanol and diethyl ether
  • soluble in acetone
Refractive index

1.384 (20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
02 - Highly / extremely flammable

danger

H and P phrases H: 225
P: 210-260-262-403 + 233
Toxicological data

8730 mg kg −1 ( LD 50ratoral )

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

Ethyl propionate is a chemical compound from the group of carboxylic acid esters .

Occurrence

Ethyl propionate occurs naturally in small amounts in fruits such as kiwi and strawberries. It is also found in wine.

Extraction and presentation

Propionic acid ethyl ester can be prepared by esterification of ethanol with propionic acid or propionic anhydride are obtained.

properties

Ethyl propionate is a volatile, highly flammable, colorless liquid with a fruity odor that is sparingly soluble in water. It decomposes when heated, which can produce carbon dioxide , carbon monoxide and ethene .

use

Ethyl propionate is used as a solvent for cellulose ethers and esters, and for various natural and synthetic resins. It is also used as a flavoring (e.g. in fruit syrup).

safety instructions

The vapors of ethyl propionate can form an explosive mixture with air ( flash point 12 ° C, ignition temperature 455 ° C).

Individual evidence

  1. a b c d e f g h i j k Entry on ethyl propionate in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
  2. a b c d Entry on ETHYL PROPIONATE in the Hazardous Substances Data Bank , accessed on July 22, 2013.
  3. Data sheet Ethyl propionate, ≥97% from Sigma-Aldrich , accessed on July 22, 2013 ( PDF ).
  4. Entry on Ethyl propionate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. John P. Bartley, Alan M. Schwede: Production of volatile compounds in ripening kiwi fruit (Actinidia chinensis). In: Journal of Agricultural and Food Chemistry. 37, 1989, pp. 1023-1025, doi : 10.1021 / jf00088a046 .
  6. ^ Ana G. Perez, Jose J. Rios, Carlos. Sanz, Jose M. Olias: Aroma components and free amino acids in strawberry variety Chandler during ripening. In: Journal of Agricultural and Food Chemistry. 40, 1992, pp. 2232-2235, doi : 10.1021 / jf00023a036 .
  7. by Hans-Dieter Belitz, Werner Grosch, Peter Schieberle: Textbook of food chemistry - Hans-Dieter Belitz, Werner Grosch, Peter Schieberle . Springer DE, 2001, ISBN 3-540-41096-1 , pp. 910 ( limited preview in Google Book search).