Kinetics of oxidation of U(IV) by nitrous acid catalyzed by ferric ions

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Sov. Radiochem. (Engl. Transl.), v. 15, no. 1, pp. 77-82

OSTI ID:4309675

Koltunov, V S; Marchenko, V I

An investigation was made of the kinetics of the oxidation of U(N) by nitrous acid in the presence of Fe/sub 3+/ ions in HNC/sub 3/ + NaNO/sub 3/ solutions with mu = 3 over the temperature range of 15.539.8 deg C. The orders of reaction with respect to the reagents and H/sup +/ ions were determined. The thermodynamic parameters of activation were calculated. A probable reaction mechanism is proposed and discussed. (auth) thermodynamic parameters of activation for the two reaction routes were calculated. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-29-024078
• OSTI ID: 4309675
• Journal Information: Sov. Radiochem. (Engl. Transl.), v. 15, no. 1, pp. 77-82, Journal Name: Sov. Radiochem. (Engl. Transl.), v. 15, no. 1, pp. 77-82; ISSN SVRDA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*URANIUM-- OXIDATION
CATALYSTS
CATIONS
CHEMICAL REACTION KINETICS
IRON COMPOUNDS
MEDIUM TEMPERATURE
N40420* --Chemistry--Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
NITRIC ACID
NITROUS ACID
SODIUM NITRATES
TEMPERATURE DEPENDENCE
URANIUM COMPOUNDS
URANIUM NITRATES
VALENCE