Nomenclature
CAS number: 10049-14-6
F
4U; mol wt 314.02.
F 24.20%, U 75.80%.
UF
4.
Description and references
Prepd from uranyl oxide and dichlorodifluoromethane:
Booth et al., J. Am. Chem. Soc. 68, 1969 (1946); also prepd by the action of hydrogen
fluoride on uranium dioxide or by addition of hydrofluoric acid to
a U(IV) soln: Emeléus in Fluorine Chemistry vol. I, J. H. Simons, Ed. (Academic Press, New York,
1950) p 59.
Properties
Monoclinic green crystals, mp
>1100°. Changes to U3O8 when heated in air. Insol in water. Sol in concd
acids and alkalies with decompn.Derivative
Hemipentahydrate.
Properties
Orthorhombic green crystals, insol in water.