Electrode reaction equilibria of niobium complexes in aqueous acidic solutions

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:5324943

Kravtsov, V I; Ivanenko, V I; Kadyrova, G I

The electrode reaction equilibria of niobium complexes were studied potentiometrically in acidic perchlorate, sulfate, and perchlorate-sulfate solutions. A two-electron reaction was shown to occur at the mercury electrode. The compositions of the Nb(V) and Nb(III) complexes predominantly present in the solutions were established. Equations for the electrode reaction equilibria were proposed.

• Research Organization: Institute of the Chemistry and Technology of Rare Elements and Minerals, Apatity (USSR)
• OSTI ID: 5324943
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:1; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400400 -- Electrochemistry
CHEMICAL REACTION KINETICS
CHEMISTRY
COMPLEXES
DISSOLUTION
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ELEMENTS
EQUILIBRIUM
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
KINETICS
MERCURY
METALS
NIOBIUM COMPLEXES
NIOBIUM COMPOUNDS
NIOBIUM HYDROXIDES
OXYGEN COMPOUNDS
PERCHLORIC ACID
POTENTIOMETRY
QUANTITY RATIO
RAMAN SPECTRA
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SPECTRA
SULFURIC ACID
TITRATION
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
VALENCE