Abstract
By means of the TIE method, the activities for silver-antimony, silver-lead and silver-tin binary molten alloys were measured at temperatures between 500 and 620°C, a solid silver electrode being employed as a reference electrode in all measurements except for some cases.
Comparing the activities measured for the more noble component of the silver-lead system with the values estimated from its phase diagram, it was confirmed that the TIE method is capable of yielding accurate results.
From the activities of both components for the silver-tin system, the modified equation of Gibbs-Duhem relation was found to be reliable.
It was also found that the activity curves for the silver-base alloy systems took wavy forms which changed in a series.
