3-octanone

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Structural formula
Structural formula of 3-octanone
General
Surname 3-octanone
other names
  • Ethyl pentyl ketone
  • Amyl ethyl ketone
  • Octan-3-one
  • EAK
  • Ethyl n -amylketon
Molecular formula C 8 H 16 O
Brief description

colorless liquid with a mild fruity odor

External identifiers / databases
CAS number 106-68-3
EC number 203-423-0
ECHA InfoCard 100.003.113
PubChem 246728
Wikidata Q18349104
properties
Molar mass 128.21 g mol −1
Physical state

liquid

density

0.82 g cm −3

Melting point

−23 ° C

boiling point

169 ° C

Vapor pressure

2.11 mbar (20 ° C)

solubility
  • sparingly soluble in water (4.5 g l −1 at 20 ° C)
  • soluble in ethanol
  • soluble in most common solvents
Refractive index

1.415 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable

Caution

H and P phrases H: 226
P: 210-370 + 378
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

3-Octanone is a chemical compound from the group of dialkyl ketones .

Occurrence

lavender

3-Octanone occurs naturally in various plants such as lavender , rosemary, and nectarines . The compound is also produced by fungi and is therefore classified as a secondary indicator in the room air for mold infestation . Certain ants such as the red garden ant ( Myrmica rubra ) also synthesize 3-octanone.

Extraction and presentation

3-Octanone can be obtained by heating propionic acid and caproic acid over thorium (IV) oxide or by oxidizing ethyl amyl ketone carbinol .

properties

3-Octanone is a slightly volatile, flammable, colorless liquid with a mild fruity odor that is sparingly soluble in water. It decomposes when heated, producing, among other things, carbon monoxide and carbon dioxide .

use

3-octanone is used as a flavoring agent.

safety instructions

The vapors of 3-octanone can form an explosive mixture with air ( flash point 53 ° C, ignition temperature 330 ° C).

Individual evidence

  1. a b c d e f g h i j k l Entry on 3-octanone in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
  2. a b Giovanni Fenaroli: Fenaroli's Handbook of Flavor Ingredients: . Taylor & Francis, 1971, ISBN 978-0-87819-533-6 , pp. 917 ( limited preview in Google Book search).
  3. a b Data sheet 3-octanone (PDF) from Merck , accessed on May 3, 2015.
  4. ^ Opdyke, DLJ (ed.): Monographs on Fragrance Raw Materials . Pergamon Press, New York 1979, p. 346.
  5. Koedam, A .: Freshly Distilled Oil of the Leaves of Rasmarinus Officianalis L Contained 3-Octanone. In: Journal of Nature Research C . 33, 1978, pp. 144-145 ( online ).
  6. Takeoka GR: Nectarine volatiles: vacuum steam distillation versus headspace sampling . In: J Agric Food Chem . 36, No. 3, 1988, pp. 553-560. doi : 10.1021 / jf00081a037 .
  7. ^ AL Sunesson, CA Nilsson, B. Andersson, G. Blomquist: Volatile metabolites produced by two fungal species cultivated on building materials. In: Ann Occup Hyg. 40, 1996, pp. 397-410, PMID 8806212 .
  8. Jasmine Wallner: mold Beagle and laboratory analysis: . vdf Hochschulverlag AG, 2013, ISBN 978-3-7281-3459-2 , p. 37 ( limited preview in Google Book search).
  9. Gerhard Andreas Wiesmüller, Thomas Eikmann, Birger Heinzow, Guido Fischer, Caroline Lord, Thomas Gabrio, Regine Szewzyk: health hazard mold in the interior: . Hüthig Jehle Rehm, 2013, ISBN 978-3-609-16464-9 , pp. 302 ( limited preview in Google Book search).
  10. M.-C. Cammaerts-Tricot: Production and perception of attractive pheromones by differently aged workers of Myrmica rubra (Hymenoptera Formicidae). In: Insectes Sociaux. 21, 1974, p. 235, doi : 10.1007 / BF02226916 .
  11. ^ Entry on 3-octanone in the Hazardous Substances Data Bank , accessed May 3, 2015.
  12. ^ Ashford RD: Ashford's Dictionary of Industrial Chemicals . Wavelength Publications Ltd, London, England 1994, p. 389.
  13. ^ Code of Federal Regulations Title 21