3-pentanol

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Structural formula
Structural formula of 3-pentanol
General
Surname 3-pentanol
other names
  • 3-amyl alcohol
  • 3-pentyl alcohol
  • Diethyl carbinol
Molecular formula C 5 H 12 O
Brief description

colorless liquid with a characteristic odor

External identifiers / databases
CAS number 584-02-1
EC number 209-526-7
ECHA InfoCard 100,008,662
PubChem 11428
Wikidata Q590622
properties
Molar mass 88.15 g mol −1
Physical state

liquid

density

0.82 g cm −3

Melting point

−8 ° C

boiling point

116 ° C

Vapor pressure
  • 7.6 hPa (20 ° C)
  • 15.5 hPa (30 ° C)
  • 29.9 hPa (40 ° C)
  • 54.2 hPa (50 ° C)
solubility

soluble in water (55 g l −1 at 30 ° C)

Refractive index

1.4104 (20 ° C)

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

Caution

H and P phrases H: 226-332-315-335
P: 210-302 + 352
Toxicological data

1870 mg kg −1 ( LD 50 ,  rat ,  oral )

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-Pentanol is an organic chemical compound from the group of alcohols . It is one of eight structural isomers of pentanols .

Presentation and extraction

3-Pentanol can be obtained by the hydrolysis of 3-chloropentane , the hydration of 2-pentene or the hydrogenation of 3-pentanone .

properties

Chemical properties

The oxidation of 3-pentanol gives 3-pentanone .

Safety-related parameters

3-Pentanol forms highly flammable vapor-air mixtures. The compound has a flash point at 30 ° C. The explosion range is between 1.2% by volume (44 g / m 3 ) as the lower explosion limit (LEL) and 10.5% by volume (385 g / m 3 ) as the upper explosion limit (UEL). The limit gap width was determined to be 0.99 mm. This results in an assignment to explosion group IIA. The ignition temperature is 360 ° C. The substance therefore falls into temperature class T2.

use

3-Pentanol is used as a solvent and starting material in organic synthesis. It is also used as a flotation agent in ore processing.

Individual evidence

  1. ↑ a b c d e f g h i j k l m n o p q Entry on 3-pentanol in the GESTIS substance database of the IFA , accessed on May 16, 2018(JavaScript required) .
  2. ↑ a b c d Entry on pentanols. In: Römpp Online . Georg Thieme Verlag, accessed on May 15, 2018.
  3. ↑ 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. 3-416.
  4. ^ A b c E. Brandes, W. Möller: Safety-related parameters - Volume 1: Flammable liquids and gases , Wirtschaftsverlag NW - Verlag für neue Wissenschaft GmbH, Bremerhaven 2003.