Nomenclature
CAS number: 7783-54-2
Nitrogen fluoride (NF
3); nitrogen trifluoride.
F
3N; mol wt 71.00.
F 80.27%, N 19.73%.
NF
3.
Description and references
Prepd by electrolysis of melted ammonium acid
fluoride, NH4F2H: Ruff et al., Z. Anorg. Allg. Chem. 172, 417
(1928); Ruff, ibid. 197, 273 (1931); Ruff, Staub, ibid. 198, 32 (1931); Kwasnik in Handbook
of Preparative Inorganic Chemistry vol. 1,
G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 181-183.
Reviews of prepn and chemistry: Hoffman, Neville, Chem. Rev. 62, 1-18 (1962); Kemmitt,
Sharp, Adv. Fluorine Chem. 4, 189-190 (1965).
Properties
Colorless, nonflammable gas. Moldy odor. mp -208.5°. bp -129°. d (liq at bp) 1.885. Trouton const
19.9. Insoluble in water. Rather inert chemically. Does not attack
glass, mercury. Decomposed by electric sparks.Caution
Potential symptoms of overexposure
in exptl animals are anoxia, cyanosis; methemoglobinemia; weakness,
dizziness, headache; liver, kidney injury. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH
97-140, 1997) p 228.Use
Chamber-cleaning gas in the manufacture of electronics.