OBSERVATION OF A URANIUM(V) SPECIES IN MOLTEN CHLORIDE SALT SOLUTIONS

Journal Article · Sun Sep 01 04:00:00 EDT 1963 · Journal of Physical Chemistry (U.S.)

DOI:https://doi.org/10.1021/j100803a518· OSTI ID:4659705

Adams, M D; Wenz, D A; Steunenberg, R K

BS>Evidence to support the existence of a uranium(V) species, UO, was found in electrolytic reductions studies of UO/sub 2/Cl/sub 2/ in both aqueous and in molten salt solutions. A spectrum that could not be attributed to uranium(HI), (IV) or (VI) species was obtained with a solution of MgUO/sub 4/ dis solved in LiCl-MgCl/sub 2/at 650 deg C. The same spectrum was later obtained with a solution of UO/sub 2/Cl/sub 2/ in the same solve and same temperature. Similar spectra then were observ in solutions produced by dissolving U/sub 3/O/sub 8/, UO/ sub 3/, and UO/sub 2/Cl /sub 2/ in other salt mixtures. The spectrum was assigned to a U(V) species, which is believed to result from the equilibrium reaction UO/sub 2/Cl/sub 2/ in equilibrium UO/sub 2/Cl + 1/2Cl/sub 2/. Concentrated U(V) solutions were greenish yellow in color; dilute solutions yellow. As the solutions solidified, the color changed to black or gray depending on concentration. Other properties are also discussed. (P.C.H.)

• Research Organization: Argonne National Lab., Ill.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-037215
• OSTI ID: 4659705
• Journal Information: Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 67; ISSN JPCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
COLOR
EQUATIONS
FUSED SALTS
HIGH TEMPERATURE
LITHIUM CHLORIDES
MAGNESIUM CHLORIDES
MAGNESIUM COMPOUNDS
QUANTITY RATIO
SALTS
SOLUTIONS
SPECTRA
U3O8
URANATES
URANIUM
URANIUM OXIDES
URANIUM TRIOXIDE
URANYL COMPOUNDS
WATER