Thermodynamics of the formation of uranyl monochloride and dichloride in molten alkali metal chlorides

Journal Article · · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:6547447

Nekrasova, N P; Komarov, V E

The values of the conventional standard electrode potentials E/sub UO/sub 2//sup +///sup *//UO/sub 2/, E/sub UO/sub 2//sup 2 +///sup *//UO/sub 2/, and the conventional formal oxidation-reduction potential E/sub UO/sub 2//sup 2 +///sup *//UO/sub 2//sup +//sup*/ as a function of temperature and the radius of the cation in molten alkali metal chlorides have been determined on the basis of the measurement of the equilibrium electrode potentials of uranium dioxide. The thermodynamics of the formation of dilute solutions of uranyl monochloride and dichloride solutions in the molten salts have been calculated. An expression has been found for the conventional equilibrium constant of the UO/sub 2/Cl/sub 2/ /sub (molten)/ + UO/sub 2/ sub/(s)/ = 2UO/sub 2/Cl sub/(molten)/ reaction as a function of temperature and the ionic moment of the alkali metal cation in the salt electrolytes which were investigated.

• OSTI ID: 6547447
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Vol. 25:2; Other Information: Translated from Radiokhimiya (USSR); 25: No. 2, 233-237(Mar-Apr 1983)
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
URANYL CHLORIDES
SYNTHESIS
THERMODYNAMICS
ALKALI METAL COMPOUNDS
CHLORIDES
REACTION KINETICS
URANIUM DIOXIDE
ACTINIDE COMPOUNDS
CHALCOGENIDES
CHLORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
KINETICS
OXIDES
OXYGEN COMPOUNDS
URANIUM COMPOUNDS
URANIUM OXIDES
URANYL COMPOUNDS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
400201 - Chemical & Physicochemical Properties