A Conductometric Study of the Bi-HgI2 System

Abstract

The electric conductivity of the homogeneous liquid Bi-HgI2 System was measured in the temperature range 260—540 °C for several Bi mole fractions ranging from 0.00 to 0.38. The specific conductivity-composition isotherms are indicative of the occurrence of electronic conductivity also before reaching a bismuth concentration sufficient for a complete conversion of HgI2 into Hg2I2. As the temperature rises the share of electronic conductivity in the total conductivity abruptly increases. Comparing the properties of this system with those of the BiI3-Bi System the conclusion is drawn that electronic conductivity in liquids is due to free metal atoms.