Title: Nitryl Fluoride
CAS Registry Number: 10022-50-1
Molecular Formula: FNO2
Molecular Weight: 65.00
Percent Composition: F 29.23%, N 21.55%, O 49.23%
Literature References: Credit for original prepn by the spontaneous combustion of nitric oxide in an atm of fluorine is given to Moissan, Lebeau, Compt. Rend. 140, 1573, 1621 (1905); more easily prepd by mixing nitrogen dioxide and fluorine: Ruff et al., Z. Anorg. Allg. Chem. 208, 298 (1932); Faloon, Kenna, J. Am. Chem. Soc. 73, 2937 (1951). Reviews of prepn and chemistry: Hoffman, Neville, Chem. Rev. 62, 1-18 (1962); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 186-187; Kemmitt, Sharp, Adv. Fluorine Chem. 4, 195-196 (1965); Woolf, ibid. 5, 1-30 (1965); Schmutzler, Angew. Chem. Int. Ed. 7, 440-455 (1968).
Properties: Colorless gas. Pungent odor. Attacks mucous membranes. mp -166.0°. bp -72.4°. d (liq at bp) 1.796. d (solid) 1.924. Trouton const 21.2. May be stored in quartz ampuls if cooled in liq oxygen. Purification can be accomplished by fractional distillation at reduced press. in dry glass or quartz apparatus. Rapidly hydrolyzed in water to form nitric and hydrofluoric acids. Powerful oxidizing agent, with fluorinating powers; slightly weaker than fluorine. Absorbs mercury completely. Spontaneously ignites iodine, selenium, phosphorus (red and white), arsenic, antimony, boron, silicon, thorium, molybdenum. On mild warming attacks lead, bismuth, chromium, manganese, iron, nickel, tungsten, sulfur, charcoal. Does not react readily with hydrogen in the cold. Converts ethanol to ethyl nitrate; benzene to nitrobenzene.
Melting point: mp -166.0°
Boiling point: bp -72.4°
Density: d (liq at bp) 1.796; d (solid) 1.924
CAUTION: See Fluorine.
Use: Oxidizer in rocket propellants; fluorinating agent. |