Title: Arsenic Pentafluoride
CAS Registry Number: 7784-36-3
Molecular Formula: AsF5
Molecular Weight: 169.91
Percent Composition: As 44.09%, F 55.91%
Literature References: Prepd from As + F2: Ruff et al., Z. Anorg. Allg. Chem. 206, 59 (1932); Seel, Detmer, ibid. 301, 113 (1959); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 198. Reviews: Burg in Fluorine Chemistry vol. I, J. Simons, Ed. (Academic Press, New York, 1950) p 102; Kemmitt, Sharp, Adv. Fluorine Chem. 4, 208 (1965).
Properties: Colorless gas. Forms white clouds in moist air. dliq25.8 2.33. mp -79.8°. bp -53.2°. Instantly hydrolyzed by water. Sol in alcohol, ether, benzene. Dry AsF5 does not attack glass, but a minute trace of moisture or HF catalyzes the etching reaction to the point of total destruction.
Melting point: mp -79.8°
Boiling point: bp -53.2°
Density: dliq25.8 2.33 |