Decanal
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| General | ||||||||||||||||
| Surname | Decanal | |||||||||||||||
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| Molecular formula | C 10 H 20 O | |||||||||||||||
| Brief description |
colorless liquid with a characteristic odor |
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| properties | ||||||||||||||||
| Molar mass | 156.3 g mol −1 | |||||||||||||||
| Physical state |
liquid |
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| density |
0.83 g ml −1 |
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| Melting point |
7 ° C |
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| boiling point |
216 ° C |
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| Vapor pressure |
8.2 Pa (20 ° C) |
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| solubility |
practically insoluble in water (48 mg l −1 at 25 ° C) |
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| Refractive index |
1.428 |
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| safety instructions | ||||||||||||||||
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| 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 | ||||||||||||||||
Decanal is an aldehyde (other name "decylaldehyde") with the semi-structural formula CH 3 (CH 2 ) 8 CHO.
Occurrence
Decanal is a natural component of the essential oils of various citrus fruits , for example orange peel oil and neroli oil .
Extraction and presentation
Decanal can be obtained by reacting decanol with dichloromethane in pyridine with chromium trioxide .
properties
Decanal is a colorless liquid with a characteristic odor. At elevated temperatures it forms flammable vapor-air mixtures. The compound has a flash point of 90 ° C. The ignition temperature is 195 ° C. The substance therefore falls into temperature class T4.
use
Decanal has a sweet, floral scent that is reminiscent of orange peel. It is therefore used, among other things, as a flavoring in the food industry and as a fragrance in the perfume industry. Its use in the perfume Chanel Nº 5 is known , which gave it its specific smell.
Web links
Individual evidence
- ↑ a b c d e f g h i j Entry on Decanal in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
- ↑ Data sheet Decanal ≥98% from Sigma-Aldrich , accessed on February 27, 2011 ( PDF ).
- ^ Fritz Ullmann, Wilhelm Foerst: Encyklopadie der technischen Chemie, Volume 14, 1963, p. 736
- ↑ Ullmann's Encyclopedia of Technical Chemistry . Wiley, 1981, ISBN 3-527-20020-7 , pp. 206 ( limited preview in Google Book search).
- ↑ a b Jürgen Falbe, Manfred Regitz: Römpp Lexikon Chemie, 10th edition, 1996-1999 Volume 2: Cm - G . Georg Thieme Verlag, 2014, ISBN 978-3-13-199981-8 , p. 228 ( limited preview in Google Book search).
- ↑ OXIDATION WITH THE CHROMIUM TRIOXIDE-PYRIDINE COMPLEX PREPARED in situ: 1-DECANAL. In: Organic Syntheses . tape 55 , 1976, pp. 84 , doi : 10.15227 / orgsyn.055.0084 .
- ^ A b E. Brandes, W. Möller: Safety-related parameters - Volume 1: Flammable liquids and gases , Wirtschaftsverlag NW - Verlag für neue Wissenschaft GmbH, Bremerhaven 2003.
- ↑ Description of Chanel Nº 5 on Parfumo, accessed on December 9, 2016.