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Nitric acid, fumingHNO3

CAS-No.:
7697-37-2
UN-No.:
2032
EC-No.:
231-714-2
Hazard identification number:
856
Hazard signs
GHS03
GHS05
GHS06

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

Occupational exposure limit
ACGIH (US)
  • TWA (ppm) (2)
  • TWA (mg/m3) (5,2)
  • STEL (ppm) NIC-0,025 IFV
  • STEL (ppm) (4)
  • STEL (mg/m3) (10)
NIOSH (REL) (US)
  • TWA (ppm) 2
  • TWA (mg/m3) 5
  • STEL (ppm) 4
  • STEL (mg/m3) 10
NIOSH (US)
  • IDLH (ppm) 25
OSHA (PEL) (US)
  • TWA (ppm) 2
  • TWA (mg/m3) 5
  • H: 272
    May intensify fire; oxidiser.
  • H: 290
    May be corrosive to metals.
  • H: 314
    Causes severe skin burns
    and eye damage.
  • H: 330
    Fatal if inhaled

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

  • Melting point:
    -43.6 °F
  • Boiling Point:
    186.8 °F
  • Density (at 20 °C, if not notified otherwise):
    1,51 g/cm3
  • Ionization:
    11.95 ± 0.01 eV
  • Vapour Pressure (at 20 °C, if not notified otherwise):
    56 hPa
  •  

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

Also known as:
  • Acids
  • Aqua fortis
  • Engravers acid
  • Hydrogen nitrate
  • Nitric acid
  • Red fuming nitric acid (RFNA)
  • White fuming nitric acid (WFNA)

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