Isopropyl propionate

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Structural formula
Structural formula of isopropyl propionate
General
Surname Isopropyl propionate
other names

Isopropyl propionate

Molecular formula C 6 H 12 O 2
Brief description

colorless liquid with an aromatic odor

External identifiers / databases
CAS number 637-78-5
EC number 211-300-8
ECHA InfoCard 100.010.274
PubChem 12508
ChemSpider 11992
Wikidata Q65225528
properties
Molar mass 116.16 g mol −1
Physical state

liquid

density

0.87 g cm −3

Melting point

−76 ° C

boiling point

109-110 ° C

solubility
  • sparingly soluble in water (6 g l −1 at 25 ° C)
  • miscible with ethanol
Refractive index

1.384-1.390 (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: 210-240-280-303 + 361 + 353-403 + 235-501
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

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

Occurrence

Isopropyl propionate has been found in raspberries , currants , kumquat peel oil , papaya and plum brandy.

Extraction and presentation

Isopropyl propionate can be obtained by direct esterification of a benzene solution in the presence of p-toluenesulfonic acid. It can also be represented by the reaction of isopropyl alcohol with sulfuric acid and propionic acid .

properties

Isopropyl propionate is a highly flammable, colorless liquid with an aromatic odor that is sparingly soluble in water. The compound has a bittersweet taste reminiscent of plums.

use

Isopropyl propionate is used as a flavoring agent.

safety instructions

The vapors of isopropyl propionate can form an explosive mixture with air ( flash point approx. 12 ° C, ignition temperature 425 ° C).

Individual evidence

  1. a b c d e f g h i j Entry on isopropyl propionate in the GESTIS substance database of the IFA , accessed on December 11, 2018(JavaScript required) .
  2. a b c d e f George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2004, ISBN 1-4200-3787-0 , pp. 972 ( limited preview in Google Book Search).
  3. Entry on isopropyl propionate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 11, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ^ Alfred Wagner: Aroma substances; Short manual for flavor and non-alcoholic drinks ... Steinkopff, 1933, OCLC 1123367234 , p. 78 ( limited preview in Google Book search).