Ethyl propionate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Ethyl propionate | |||||||||||||||
other names |
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Molecular formula | C 5 H 10 O 2 | |||||||||||||||
Brief description |
colorless liquid with a fruity odor |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 102.13 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
0.89 g cm −3 |
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Melting point |
−74 ° C |
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boiling point |
99 ° C |
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Vapor pressure |
26.7 mbar (20 ° C) |
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solubility |
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Refractive index |
1.384 (20 ° C) |
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safety instructions | ||||||||||||||||
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Toxicological data | ||||||||||||||||
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
- ↑ 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) .
- ↑ a b c d Entry on ETHYL PROPIONATE in the Hazardous Substances Data Bank , accessed on July 22, 2013.
- ↑ Data sheet Ethyl propionate, ≥97% from Sigma-Aldrich , accessed on July 22, 2013 ( PDF ).
- ↑ 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 .
- ↑ 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 .
- ^ 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 .
- ↑ 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).