Nitrosyl Fluoride
Title: Nitrosyl Fluoride
CAS Registry Number: 7789-25-5
Additional Names: Nitrogen oxyfluoride
Molecular Formula: FNO
Molecular Weight: 49.00
Percent Composition: F 38.77%, N 28.59%, O 32.65%
Literature References: Preparation: Ruff et al., Z. Anorg. Allg. Chem. 208, 293 (1932); Balz, Mailänder, ibid. 217, 166 (1934); Faloon, Kenna, J. Am. Chem. Soc. 73, 2937 (1951); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 184-185. Reviews: Hoffman, Neville, Chem. Rev. 62, 1-18 (1962); Kemmitt, Sharp, Adv. Fluorine Chem. 4, 194-195 (1965); Woolf, ibid. 5, 1-30 (1965); Schmutzler, Angew. Chem. Int. Ed. 7, 440-455 (1968).
Properties: Colorless gas. Often bluish because of impurities. Vigorous reaction with glass, corroding action on quartz. May be kept in quartz ampuls if cooled in liq oxygen. mp -132.5°. bp -59.9°. d (liq at bp) 1.326. d (solid) 1.719. Trouton const. 21.3. Reacts with water to form NO, HNO3 and HF.
Melting point: mp -132.5°
Boiling point: bp -59.9°
Density: d (liq at bp) 1.326; d (solid) 1.719
CAUTION: Highly irritating to skin, eyes, mucous membranes. See also Fluorine.
Use: Oxidizer in rocket propellants; stabilizing agent for liquid SO3; fluorinating agent.

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