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PyridineC5H5N

CAS-No.:
110-86-1
UN-No.:
1282
EC-No.:
203-809-9
Hazard identification number:
33
Hazard signs
GHS02
GHS07

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

Occupational exposure limit
ACGIH (US)
  • TWA (ppm) 1
  • TWA (mg/m3) 3,1
NIOSH (REL) (US)
  • TWA (ppm) 5
  • TWA (mg/m3) 15
NIOSH (US)
  • IDLH (ppm) 1000
OSHA (PEL) (US)
  • TWA (ppm) 5
  • TWA (mg/m3) 15
  • H: 225
    Highly flammable liquid and vapour
  • H: 302 + 312 + 332
    Harmful if swallowed, in contact with skin or if inhaled
  • H: 315
    Causes skin irritation
  • H: 319
    Causes serious eye irritation

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

  • Melting point:
    -43.6 °F
  • Boiling Point:
    239 °F
  • Density (at 20 °C, if not notified otherwise):
    0,98 g/cm3
  • Ionization:
    9.26 ± 0.01 eV
  • Flash Point:
    62.6 °F
  • Ignition Temperature:
    1022 °F
  • Vapour Pressure (at 20 °C, if not notified otherwise):
    20,5 hPa
  • Lower Explosive Limit:
    1.7 Vol.-%
  • Upper Explosive Limit:
    10.6 Vol.-%
  •  

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

Also known as:
  • Azabenzene
  • Azabenzol
  • Azin
  • Azine
  • Pyridine

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