Hexanal

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Structural formula
Structural formula of hexanal
General
Surname Hexanal
other names
  • Capronaldehyde
  • Hexaldehyde
  • Hexylaldehyde
Molecular formula C 6 H 12 O
Brief description

colorless liquid with a pungent odor

External identifiers / databases
CAS number 66-25-1
EC number 200-624-5
ECHA InfoCard 100,000,567
PubChem 6184
Wikidata Q420698
properties
Molar mass 100.16 g mol −1
Physical state

liquid

density

0.81 g cm −3

Melting point

−56 ° C

boiling point

129 ° C

Vapor pressure

12 h Pa (20 ° C)

solubility

poor in water (6 g l −1 at 20 ° C)

Refractive index

1.4039 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 07 - Warning

Caution

H and P phrases H: 226-315-319
P: 210-260-302 + 352-305 + 351 + 338
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

Wiktionary: Hexanal  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  1. 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) .
  2. 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.