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1-ButanethiolC4H10S

CAS-No.:
109-79-5
UN-No.:
2347
EC-No.:
203-705-3
Hazard identification number:
33
Hazard signs
GHS02
GHS07
GHS09

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Occupational exposure limit
ACGIH (US)
  • TWA (ppm) 0,5
  • TWA (mg/m3) 1,8
NIOSH (REL) (US)
  • STEL (ppm) C 0,5 (15min)
  • STEL (mg/m3) C 1,8 (15min)
NIOSH (US)
  • IDLH (ppm) 500
OSHA (PEL) (US)
  • TWA (ppm) 10
  • TWA (mg/m3) 35
  • H: 225
    Highly flammable liquid and vapour
  • H: 302
    Harmful if swallowed.
  • H: 317
    May cause an allergic skin reaction
  • H: 410
    Very toxic to aquatic life with long lasting effects

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

  • Melting point:
    -176.8 °F
  • Boiling Point:
    208.4 °F
  • Density (at 20 °C, if not notified otherwise):
    0,84 g/cm3
  • Ionization:
    9.14 ± 0.01 eV
  • Flash Point:
    33.8 °F
  • Vapour Pressure (at 20 °C, if not notified otherwise):
    40 (20°C) hPa
  • Lower Explosive Limit:
    1.4 Vol.-%
  • Upper Explosive Limit:
    11.3 Vol.-%
  • Hazardous Effects:
    Ss
  •  

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Also known as:
  • 1-Mercaptobutane
  • butane-1-thiol
  • Butanethiol
  • Butylmercaptan
  • n-Butanethiol
  • n-Butyl mercaptan

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