Bromine Trifluoride

Title: Bromine Trifluoride
CAS Registry Number: 7787-71-5
Molecular Formula: BrF3
Molecular Weight: 136.90
Percent Composition: Br 58.37%, F 41.63%
Literature References: Prepd by fluorination of bromine at +80°: Lebeau, Compt. Rend. 141, 1018 (1905); Prideaux, J. Chem. Soc. 89, 316 (1906); Ruff, Braida, Z. Anorg. Allg. Chem. 206, 59 (1932); 214, 91 (1933); Simons, Inorg. Synth. 3, 184 (1950); Kwasnik in Handbook of Preparative Inorganic Chemistry Vol. 1, G. Brauer, Ed. (Academic Press, 2nd ed., 1963) pp 156-157. Reviews: Kemmitt, Sharp, Adv. Fluorine Chem. 4, 244-245 (1965); Stein, "Physical and Chemical Properties of Halogen Fluorides" in Halogen Chemistry Vol. 1, V. Gutmann, Ed. (Academic Press, New York, 1967) pp 133-224; Meinert, Z. Chem. 7, 41-57 (1967).
Properties: Colorless liquid; also reported to be pale yellow. Long prisms when solid. mp 8.77°. bp 125.75°. d25 2.8030. Smokes in air. Attacks skin. Very reactive.
Melting point: mp 8.77°
Boiling point: bp 125.75°
Density: d25 2.8030
CAUTION: Corrosive and irritating to skin, eyes, mucous membranes, respiratory tract.
Use: Solvent for fluorides.
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