The Phase Relationships in the Sb-S-I System and Thermodynamic Properties of the SbSI

The phase relationships in the Sb-S-I ternary system were determined experimentally over entire concentration range by means of differential thermal analysis (DTA) and x-ray diffraction (XRD) techniques. Two quasi-binary, three isopleth sections, 300 K isothermal section and liquidus surface projection of the system were revised. The primary crystallization fields of all existing phases, the types and coordinates of all invariant and monovariant equilibria were determined. The electromotive force measurements (EMF) method was used to calculate the partial molar functions of antimony in alloys and the standard integral thermodynamic functions of SbSI.