Title: Uranium Trichloride
CAS Registry Number: 10025-93-1
Molecular Formula: Cl3U
Molecular Weight: 344.39
Percent Composition: Cl 30.88%, U 69.12%
Line Formula: UCl3
Literature References: Prepd by hydrogen reduction of uranium(IV) chloride: Suttle, Inorg. Synth. 5, 145 (1957).
Properties: Dark purple crystals. Less hygroscopic than uranium(IV) chloride. d 5.51. mp 842°. Heat of formation at 25° 212.0 kcal/mol. Freely sol in water, giving a purple soln, which evolves hydrogen and turns green because of oxidation to uranium(IV). Less sol in polar organic solvents than uranium(IV) chloride and insol in nonpolar solvents.
Melting point: mp 842°
Density: d 5.51 |