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Ammonia (anhydrous)NH3

CAS-No.:
7664-41-7
UN-No.:
1005
EC-No.:
231-635-3
Hazard identification number:
268
Hazard signs
GHS04
GHS05
GHS06
GHS09
GHS07

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

Occupational exposure limit
ACGIH (US)
  • TWA (ppm) 25
  • TWA (mg/m3) 17
  • STEL (ppm) 35
  • STEL (mg/m3) 24
NIOSH (REL) (US)
  • TWA (ppm) 25
  • TWA (mg/m3) 18
  • STEL (ppm) 35
  • STEL (mg/m3) 27
NIOSH (US)
  • IDLH (ppm) 300
OSHA (PEL) (US)
  • TWA (ppm) 50
  • TWA (mg/m3) 35
  • H: 221
    Flammable gas
  • H: 280
    Contains gas under pressure; may explode if heated
  • H: 314
    Causes severe skin burns
    and eye damage.
  • H: 331
    Toxic if inhaled
  • H: 410
    Very toxic to aquatic life with long lasting effects

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

  • Melting point:
    -107.86 °F
  • Boiling Point:
    -28.12 °F
  • Density (at 20 °C, if not notified otherwise):
    0,0007714 (0°C) g/cm3
  • Ionization:
    10.070 ± 0.020 eV
  • Ignition Temperature:
    1166 °F
  • Vapour Pressure (at 20 °C, if not notified otherwise):
    8573,7 hPa
  • Lower Explosive Limit:
    14 Vol.-%
  • Upper Explosive Limit:
    32.5 Vol.-%

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

Also known as:
  • Anhydrous ammonia
  • Azane
  • Hydrogen Nitrite
  • nitrogen trihydride
  • Trihydrogen Nitride

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