1-pentanethiol

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Structural formula
Structural formula of 1-pentanethiol
General
Surname 1-pentanethiol
other names
  • Amyl mercaptan
  • Amyl hydrosulfide
  • Pentane-1-thiol
  • Pentyl mercaptan
  • Pentanethiol (ambiguous)
Molecular formula C 5 H 12 S
Brief description

colorless liquid with a garlic-like odor

External identifiers / databases
CAS number 110-66-7
EC number 203-789-1
ECHA InfoCard 100.003.446
PubChem 8067
Wikidata Q3824464
properties
Molar mass 104.22 g mol −1
Physical state

liquid

density

0.84 g cm −3

Melting point

−76 ° C

boiling point

127 ° C

Vapor pressure

18.4 hPa (25 ° C)

solubility
  • very sparingly soluble in water (0.16 g l −1 at 20 ° C)
  • miscible with ethanol
Refractive index

1.4460 (20 ° C)

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

danger

H and P phrases H: 225-302-332
P: 210-223-403 + 235
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

1-Pentanethiol is a chemical compound belonging to the group of thiols .

Occurrence

Chives ( Allium schoenoprasum )

1-Pentanethiol occurs naturally in chives .

Extraction and presentation

1-Pentanethiol can be obtained by reacting amyl bromide and potassium hydrogen sulfide in alcohol.

properties

1-Pentanethiol is a highly flammable, volatile, colorless liquid with a garlic-like odor that is very sparingly soluble in water.

use

1-Pentanethiol is used for the synthesis of other chemical compounds and as an odor additive for gases for leak detection.

safety instructions

The vapors of 1-pentanethiol can form an explosive mixture with air ( flash point 18 ° C).

Individual evidence

  1. ↑ a b c d e f g h i j k Entry on 1-pentanethiol in the GESTIS substance database of the IFA , accessed on October 6, 2018(JavaScript required) .
  2. ↑ David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 ( limited preview in Google Book Search).
  3. ↑ Data sheet 1-Pentanethiol, 97% from AlfaAesar, accessed on October 6, 2018 ( PDF )(JavaScript required) .
  4. ↑ SEIJI HASHIMOTO, MITSUO MIYAZAWA, HIROMU KAMEOKA: Volatile Flavor Components of Chive (Allium schoenoprasum L.). In: Journal of Food Science. 48, 1983, p. 1858, doi : 10.1111 / j.1365-2621.1983.tb05101.x .
  5. ↑ a b Entry on 1-pentanethiol in the Hazardous Substances Data Bank , accessed October 6, 2018.