The Electrochemistry of the Dissolution of Zirconium in Aqueous Solutions of Hydrofluoric Acid

Journal Article · Wed Jan 01 00:00:00 EST 1964 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2426074· OSTI ID:4092109

Meyer, Robert E.

The dissolution of crystal-bar zirconium in aqueous solutions containing HF and H₂SO₄ was investigated by means of electrochemical techniques. Capacities were determined by measuring the initial slope of the voltagetime curve resulting from the application of galvanostatic pulses. Steady-state polarization curves were obtained potentiostatically whenever possible, and galvanostatic polarization curves were determined by a pulse technique. The data are explained by assuming that the dissolution reaction involves the continuous formation and dissolution of a film on the surface of the metal. The conventional anodizing equation describes the formation of the film and the dissolution reaction is controlled by the rate of mass transfer of undissociated HF to the surface of the film.

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-010073
• OSTI ID: 4092109
• Journal Information: Journal of the Electrochemical Society, Vol. 111, Issue 2; Other Information: Orig. Receipt Date: 31-DEC-64; ISSN 0013-4651
• Publisher: The Electrochemical Society
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CHEMICAL REACTIONS
CRYSTALS
DIAGRAMS
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTROSTATICS
EQUATIONS
FILMS
HYDROFLUORIC ACID
MASS TRANSFER
MEASURED VALUES
POLARIZATION
QUANTITATIVE ANALYSIS
RODS
SOLUBILITY
SOLUTIONS
SULFURIC ACID
SURFACES
VARIATIONS
WATER
ZIRCONIUM