VOLTAMMETRIC STUDY OF SILVER IN A GLASS MELT

The redox reaction and the oxidation state of silver in a glass melt w ere studied by cyclic voltammetry and chronopotentiometry between 800 degrees and 1200 degrees C, Silver ions in glass were reduced at a les s noble potential than the rest potential of a platinum electrode, A r eversible redox reaction of silver in glass was indicated from the ana lysis of the cyclic voltammogram, An analysis based on the electron tr ansference number revealed that the solubility of reduced silver incre ased with increasing temperature, Ag+/Ag-o equilibrium in glass was su ggested because the rest potential of the platinum electrode in glass was a mixed potential, No relation was observed between the redox beha vior of silver in glass and optical basicity. O-type redox behavior of silver in glass was shown.