The thermodynamics of the vaporization of liquid indium(I) bromide by modified entrainment

Abstract

The transport of gaseous In(I)Br in an argon carrier gas was studied in the temperature range 680 to 935 K by the modified entrainment method. Combination of the entrainment results with a literature equation for the total vapour pressure above the liquid gave the following expressions for the temperature dependence of the vapour pressures of the monomer (In2Br2) and dimer (In2Br2) respectively: [Formula: see text] ln T − 0.001164 ± 0.00021)T, (680 −950 K) and [Formula: see text] (680–810 K); p0 = 105 Pa. The dimer concentration is ca. 14% at 680 K and decreases to ca. 4% at 810 K. Key words: high temperature thermodynamics, indium(I) bromide, vaporization thermodynamics.