Vapor Pressure of Zinc in Liquid Sn-Zn-Tl and In-Zn-Tl Alloys

Abstract

Using Knundsen’s effusion method, the vapor pressure of zinc has been measured for two liquid ternary metallic solutions: Sn-Zn-Tl and In-Zn-Tl, in the range of 0∼0.15 zinc mole fraction in the neighborhood of 625°K. The results indicate that the activity of zinc of these systems can be expressed as that of regular solutions. In the Tl-rich portion of the Zn-Tl binary phase diagram, the liquidus curve obtained from the present investigation is slightly higher than that currently accepted.