CONDUCTIVITIES AND DENSITIES OF NA2SO4-NAVO3 MELTS

Electrical conductivities and densities of Na2SO4-NaVO3 (0-30 m/o NaVO 3) melts have been measured in a temperature range of 1150 to 1220 K b y an electrochemical impedance technique and by an Archimedean method. The specific conductivities of the melts decrease with increasing amo unt of NaVO3 in the melts, which results from a decrease in the Na+ de nsities. As temperature increases, the specific conductivities of the melts increase. The densities of the melts increase both with increasi ng amount of NaVO3 in the melts and with decreasing temperature. From the specific conductivities and densities of the melts, the equivalent conductivities and the Na+ densities of the melts were calculated.