A new form of the high-temperature isopiestic technique and its application to mercury–bismuth, mercury–cadmium, mercury–gallium, mercury–indium and mercury–tin binary amalgams

Abstract

A new form of the high-temperature isopiestic technique has been developed for measuring isothermal–isobaric compositions of different melts with only one common volatile component; this has been applied to mercury–bismuth, mercury–cadmium, mercury–gallium, mercury–indium and mercury–tin binary amalgams at 600 K. The activities of mercury in mercury–bismuth, mercury–gallium, mercury–indium and mercury–tin amalgams have been calculated from the measured isothermal–isobaric data, taking the mercury–cadmium amalgam as a reference system. Using the results the activities of bismuth, gallium, indium and tin in the amalgams have been calculated analytically.