Polarographic behavior of vanadium(V) in mixed mineral-acid-organic electrolytes
Reducing vanadium(V) in phosphoric-acid-potassium citrate-EDTA solutions in order to develop its polarographic determination in iron-containing materials was studied. Polarography with triangular potential sweep was used. The reference electrode was a saturated calomel electrode linked to the test via a potassium chloride salt bridge. Working solutions were prepared with phosphoric acid solution. It was established that polarographic characteristics depend on solution pH. Experimental currents of the second cathodic and anodic wave as functions of potential scan rate in order to examine the kinetics and mechanism of vanadium(V) reduction under optimum conditions was also studied and found to be irreversible. Polarographic characteristics are tabulated.
- Research Organization:
- Institute of Chemistry, Sverdlovsk (USSR)
- OSTI ID:
- 6332878
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:7; ISSN SOECA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ALKALI METAL COMPOUNDS
AMINO ACIDS
CARBOXYLIC ACIDS
CHELATING AGENTS
CHEMICAL REACTIONS
EDTA
ELECTRODES
ELECTROLYTES
ELECTROMETALLURGY
ELECTRON TRANSFER
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON COMPOUNDS
MATERIALS TESTING
METALLURGY
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
PHOSPHORIC ACID
POLAROGRAPHY
POTASSIUM COMPOUNDS
REDUCTION
TESTING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VALENCE
VANADIUM
VANADIUM COMPOUNDS