Title: Uranyl Chloride
CAS Registry Number: 7791-26-6
Additional Names: Uranium dioxydichloride
Molecular Formula: Cl2O2U
Molecular Weight: 340.93
Percent Composition: Cl 20.80%, O 9.39%, U 69.82%
Line Formula: UO2Cl2
Literature References: Prepd by the reaction of O2 with uranium(IV) chloride at 300-350°: Leary, Suttle, Inorg. Synth. 5, 148 (1957).
Properties: Bright yellow crystals. Orthorhombic system. Very hygroscopic. Appreciably volatile above 775°. Dec in vacuo above 450° yielding chlorine and UO2 plus U3O8. Very freely sol in water. Forms cryst hydrates. Sol in polar organic solvents such as acetone and alcohol, but insol in less polar solvents such as benzene. Aq solns are unstable. |