Camphene
Structural formula | |||||||||||||||||||
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(+) - or D- camphene (left) and (-) - or L- camphene (right) | |||||||||||||||||||
General | |||||||||||||||||||
Surname | Camphene | ||||||||||||||||||
other names |
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Molecular formula | C 10 H 16 | ||||||||||||||||||
Brief description |
colorless, cubic crystals with a turpentine odor |
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External identifiers / databases | |||||||||||||||||||
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properties | |||||||||||||||||||
Molar mass | 136.23 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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density | |||||||||||||||||||
Melting point | |||||||||||||||||||
boiling point |
158-159 ° C |
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Vapor pressure |
21.5 h Pa (50 ° C) |
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solubility |
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Refractive index |
1.5441 (54 ° 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 |
Camphene (stress on the final syllable: Camph e n ) is a white, waxy solid. It is a bicyclic monoterpene - hydrocarbon , which molecular formula is C 10 H 16 . It comes as a racemate of the two enantiomers , D - and L -Camphen before.
Manufacturing
(-) - Camphene can be formed by rearrangement of the bornyl cation, which is formed by protonation and elimination of water from (-) - borneol .
properties
Camphene is almost insoluble in water; it is readily soluble in cyclohexane , alcohol and chloroform . The flash point of the racemate is 39 ° C.
use
Camphene is an intermediate product for the synthesis of flavors and smells. It is also needed for the production of camphor , stroban and toxaphene . It is part of the essential oil of the cubeb pepper .
Individual evidence
- ↑ a b c d e f g h Entry on camphene in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
- ^ A b The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 9th edition. Merck & Co., Inc., Whitehouse Station, NJ, USA 1976, ISBN 0-911910-26-3 , p. 219.
- ↑ a b entry on camphene. In: Römpp Online . Georg Thieme Verlag, accessed on June 20, 2014.
- ^ Albert Gossauer: Structure and reactivity of biomolecules , Verlag Helvetica Chimica Acta , Zurich, 2006, p. 206, ISBN 978-3-906390-29-1 .