Nitrogen trifluoride

Nitrogen trifluoride
Nitrogen trifluoride
Nitrogen trifluoride
Names
IUPAC name
Nitrogen trifluoride
Other names
Nitrogen fluoride
Trifluoramine
Trifluorammonia
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.029.097 Edit this at Wikidata
EC Number
  • 232-007-1
1551
RTECS number
  • QX1925000
UNII
UN number 2451
  • InChI=1S/F3N/c1-4(2)3 checkY
    Key: GVGCUCJTUSOZKP-UHFFFAOYSA-N checkY
  • InChI=1/F3N/c1-4(2)3
    Key: GVGCUCJTUSOZKP-UHFFFAOYAA
  • FN(F)F
Properties
NF3
Molar mass 71.00 g/mol
Appearance colorless gas
Odor moldy
Density 3.003 kg/m3 (1 atm, 15 °C)
1.885 g/cm3 (liquid at b.p.)
Melting point −207.15 °C (−340.87 °F; 66.00 K)
Boiling point −129.06 °C (−200.31 °F; 144.09 K)
0.021 g/100 mL
Vapor pressure 44.0 atm[1](−38.5 °F or −39.2 °C or 234.0 K)[a]
1.0004
Structure
trigonal pyramidal
0.234 D
Thermochemistry
53.26 J/(mol·K)
260.3 J/(mol·K)
−31.4 kcal/mol[2]
−109 kJ/mol[3]
−84.4 kJ/mol
Hazards
GHS labelling:
H270, H280, H332
P220, P244, P260, P304+P340, P315, P370+P376, P403
NFPA 704 (fire diamond)
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
2000 ppm (mouse, 4 h)
9600 ppm (dog, 1 h)
7500 ppm (monkey, 1 h)
6700 ppm (rat, 1 h)
7500 ppm (mouse, 1 h)[5]
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 10 ppm (29 mg/m3)[4]
REL (Recommended)
TWA 10 ppm (29 mg/m3)[4]
IDLH (Immediate danger)
1000 ppm[4]
Safety data sheet (SDS) AirLiquide
Related compounds
Other anions
nitrogen trichloride
nitrogen tribromide
nitrogen triiodide
ammonia
Other cations
phosphorus trifluoride
arsenic trifluoride
antimony trifluoride
bismuth trifluoride
Related binary fluoro-azanes
tetrafluorohydrazine
Related compounds
dinitrogen difluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Nitrogen trifluoride is the inorganic compound with the formula (NF
3
). It is a colorless, non-flammable, toxic gas with a slightly musty odor. In contrast with ammonia, it is nonbasic. It finds increasing use within the manufacturing of flat-panel displays, photovoltaics, LEDs and other microelectronics.[6] NF
3
is a greenhouse gas, with a global warming potential (GWP) 17,200 times greater than that of CO
2
when compared over a 100-year period.[7][8][9]

  1. ^ Air Products; Physical Properties for Nitrogen Trifluoride
  2. ^ Sinke, G. C. (1967). "The enthalpy of dissociation of nitrogen trifluoride". J. Phys. Chem. 71 (2): 359–360. doi:10.1021/j100861a022.
  3. ^ Inorganic Chemistry, p. 462, at Google Books
  4. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0455". National Institute for Occupational Safety and Health (NIOSH).
  5. ^ "Nitrogen trifluoride". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  6. ^ Cite error: The named reference Kirk was invoked but never defined (see the help page).
  7. ^ "Climate Change 2007: The Physical Sciences Basis" (PDF). IPCC. Retrieved 2008-07-03. {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ Robson, J. I.; Gohar, L. K.; Hurley, M. D.; Shine, K. P.; Wallington, T. (2006). "Revised IR spectrum, radiative efficiency and global warming potential of nitrogen trifluoride". Geophys. Res. Lett. 33 (10): L10817. Bibcode:2006GeoRL..3310817R. doi:10.1029/2006GL026210.
  9. ^ Richard Morgan (2008-09-01). "Beyond Carbon: Scientists Worry About Nitrogen's Effects". The New York Times. Archived from the original on 2018-01-23. Retrieved 2008-09-07.


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