The electrical conductance of fused sodium nitrate to 475 °C and 12 kbars

The electrical conductance of fused sodium nitrate has been measured in a piston-cylinder pressure apparatus between 320 and 475 °C to pressures of 12 kbars. The value of the activation volume for the specific conductance [math] equals 2.5 cm3/mole at 380 °C and is almost independent of temperature. Using PVT-data for sodium nitrate, isochoric activation energies have been calculated from measured isobaric activation energies