Bismuth Pentafluoride
Title: Bismuth Pentafluoride
CAS Registry Number: 7787-62-4
Molecular Formula: BiF5
Molecular Weight: 303.97
Percent Composition: Bi 68.75%, F 31.25%
Literature References: Prepd according to the equation BiF3 + F2 ® BiF5: v. Wartenberg, Z. Anorg. Allg. Chem. 244, 344 (1940); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer Ed. (Academic Press, New York, 2nd ed., 1963) pp 202-203. Prepn from Bi and F2: Fischer, Rodzitis, J. Am. Chem. Soc. 81, 6375 (1959); Kemmitt, Sharp, Adv. Fluorine Chem. 4, 212 (1965); Hebecker, Z. Anorg. Allg. Chem. 384, 111 (1971).
Properties: Body-centered tetragonal crystals, sublimes at 120°. d 5.55. Very sensitive to moisture, discolors quickly in moist air. Violent reaction with water forming BiF3 and ozone. Reacts with liquid petrolatum above 50°.
Density: d 5.55
CAUTION: Highly toxic and irritating to mucous membranes, skin, eyes, respiratory tract.
Use: Fluorinating agent.

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