Vanadium equilibrium potentials were determined in NaCl-KCl equimolar melts containing 0.018 - 8.02 wt.% of vanadium between 690 and 820 oC. It was found that only vanadium(II) ions are present in the equilibrium with the metal. The temperature dependence of E*V2+/V formal standard potential was determined. Enthalpy and entropy change of the formation of vanadium(II) chloride in NaCl-KCl melt were determined. Hypothetical values of enthalpy and entropy change of the formation of super-cooled liquid vanadium(II) chloride were calculated. Enthalpy and entropy of mixing of VCl2 and NaCl-KCl were estimated.
Discussion(0)
No comments yet. Be the first to comment.