Electrode kinetics of niobium complexes in acidic perchlorate and sulfate solutions

Journal Article · Mon Feb 01 04:00:00 EST 1988 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:6479053

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

Polarography was used to study the kinetics of change of charge of niobium(V) and niobium(III) complexes at mercury in acidic perchlorate and sulfuric acid solutions. Polarograms were recorded with a polarograph and dripping mercury electrode. The number of electrons involved in the electrode process was determined coulometrically. The chemical and electrochemical steps of the electrode reactions and the dependence of the diffusion coefficients of niobium(V) and niobium(III) on solution composition are discussed.

• Research Organization: Institute of the Chemistry and Chemical Technology of Rare Elements and Minerals, Apatity (USSR)
• OSTI ID: 6479053
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:8; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ALKALI METAL COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
COMPLEXES
DIFFUSION
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN TRANSFER
INORGANIC ACIDS
KINETICS
MERCURY
MERCURY COMPOUNDS
MERCURY SULFATES
METALS
NIOBIUM COMPLEXES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PERCHLORATES
PERCHLORIC ACID
POLAROGRAPHY
REACTION KINETICS
REDOX POTENTIAL
REDUCTION
REFRACTORY METAL COMPOUNDS
SODIUM COMPOUNDS
SODIUM PERCHLORATES
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
VALENCE