Nitrogen chloride is a better Lewis base than nitrogen fluoride
Answers
Nitrogen trifluoride is the inorganic compound with the formula NF3. This nitrogen-fluorine compound is a colorless, nonflammable gas with a slightly musty odor. It finds increasing use as an etchant in microelectronics. Nitrogen trifluoride is an extremely strong greenhouse gas.
Nitrogen trifluoride
Nitrogen trifluoride
Nitrogen trifluoride
Names
IUPAC name
Nitrogen trifluoride
Other names
Nitrogen fluoride
Trifluoramine
Trifluorammonia
Identifiers
CAS Number
7783-54-2 ☑
3D model (JSmol)
Interactive image
ChEBI
CHEBI:30231 ☑
ChemSpider
22959 ☑
ECHA InfoCard
100.029.097
EC Number
232-007-1
Gmelin Reference
1551
PubChem CID
24553
RTECS number
QX1925000
UN number
2451
CompTox Dashboard (EPA)
DTXSID4040181 Edit this at Wikidata
InChI
InChI=1S/F3N/c1-4(2)3 ☑
Key: GVGCUCJTUSOZKP-UHFFFAOYSA-N ☑
InChI=1/F3N/c1-4(2)3
Key: GVGCUCJTUSOZKP-UHFFFAOYAA
SMILES
FN(F)F
Properties
Chemical formula
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)
Solubility in water
0.021 g/100 mL
Vapor pressure
44.0 atm[1](−38.5 °F or −39.2 °C or 234.0 K)[a]
Refractive index (nD)
1.0004
Structure
Molecular shape
trigonal pyramidal
Dipole moment
0.234 D
Thermochemistry
Heat capacity (C)
53.26 J/(mol·K)
Std molar
entropy (So298)
260.3 J/(mol·K)
Std enthalpy of
formation (ΔfH⦵298)
−31.4 kJ/mol[2]
−109 kJ/mol[3]
Gibbs free energy (ΔfG˚)
−84.4 kJ/mol
Hazards
Safety data sheet
AirLiquide
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
010OX
Flash point
Non-flammable
Lethal dose or concentration (LD, LC):
LC50 (median concentration)
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]
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