Hexanal
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Hexanal | |||||||||||||||
other names |
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Molecular formula | C 6 H 12 O | |||||||||||||||
Brief description |
colorless liquid with a pungent odor |
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properties | ||||||||||||||||
Molar mass | 100.16 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
0.81 g cm −3 |
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Melting point |
−56 ° C |
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boiling point |
129 ° C |
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Vapor pressure |
12 h Pa (20 ° C) |
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solubility |
poor in water (6 g l −1 at 20 ° C) |
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Refractive index |
1.4039 (20 ° C) |
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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 |
Hexanal is an organic compound that belongs to the group of aldehydes and green leaf fragrances .
Occurrence
Hexanal is naturally formed when unsaturated fatty acids are broken down through oxidation. This aldehyde is noticeable when, for example, the lawn is cut. The same thing happens when an apple mash is made. Only over time is the hexanal reduced to the odorless hexanol . In apple juice, orange juice or olive oil it is definitely desirable in small amounts.
use
Hexanal is found in many paints and linoleum, as well as in pharmaceuticals . It is also used in odorant chemistry.
properties
Hexanal forms highly flammable vapor-air mixtures. The compound has a flash point of 24 ° C. The ignition temperature is 195 ° C. The substance therefore falls into temperature class T4. Hexanal oxidizes easily and tends to polymerize in the presence of traces of acid .
safety instructions
Inhalation, ingestion or absorption through the skin can be harmful to health. Irritating to eyes, respiratory system and skin.
Web links
Individual evidence
- ↑ a b c d e f g h i j Entry for CAS no. 66-25-1 in the GESTIS substance database of the IFA , accessed on February 2, 2016(JavaScript required) .
- ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-282.