Lead Fluoride
Title: Lead Fluoride
CAS Registry Number: 7783-46-2
Additional Names: Lead difluoride; plumbous fluoride
Molecular Formula: F2Pb
Molecular Weight: 245.20
Percent Composition: F 15.50%, Pb 84.50%
Line Formula: PbF2
Literature References: Prepd by treating lead carbonate or hydroxide with hydrogen fluoride and evaporating the soln; by mixing solns of potassium fluoride and lead acetate; by precipitation from the soln of a lead salt by HF; by the action of fluorine on lead: Ruff, Die Chemie des Fluors (Springer, Berlin, 1920) p 33; Emeléus in Fluorine Chemistry vol. 1, J. H. Simons, Ed. (Academic Press, New York, 1950) p 51; Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 1963) pp 218-219. Review: Kemmitt, Sharp, Adv. Fluorine Chem. 4, 188 (1965).
Properties: White to colorless crystals. Poisonous! Dimorphous: orthorhombic, converted to cubic above 316°. d (orthorhombic) 8.445; d (cubic) 7.750. mp 824°. bp 1293°. Soly in water (g/100 ml): 0.057 (0°); 0.065 (20°). The soly increases in the presence of HNO3 or nitrates.
Melting point: mp 824°
Boiling point: bp 1293°
Density: d (orthorhombic) 8.445; d (cubic) 7.750

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