Title: Thallium Fluoride
CAS Registry Number: 7789-27-7
Additional Names: Thallous fluoride
Molecular Formula: FTl
Molecular Weight: 223.38
Percent Composition: F 8.50%, Tl 91.50%
Line Formula: TlF
Literature References: Prepared from Tl2CO3 and HF: Ketelaar, Z. Kristallogr. 92, 30 (1935); Hayek, Z. Anorg. Allg. Chem. 225, 47 (1935); Barrow et al., Trans. Faraday Soc. 51, 1650 (1955); from Tl and HF: Keneshea, Cubicciotti, J. Phys. Chem. 69, 3910 (1965); Tranquard, Bull. Soc. Chim. Fr. 1967, 2578.
Properties: Hard, shiny, crystals which deliquesce when breathed upon, but which resolidify immediately in dry air. Not hygroscopic in the usual sense. Orthorhombic (deformed NaCl lattice). d425 8.36. mp 322°. Begins to sublime at 300°. Very freely sol in water. Concd solns show strong alkalinity.
Melting point: mp 322°
Density: d425 8.36
Use: In the prepn of fluoro esters. |