Results of experimental thermodynamic analysis of binary systems Ge-Ga and
Ge-Sb obtained by Oelsen calorimetry are presented in this paper. Activitie
s, activity coefficients, partial molar quantities for both components in t
he investigated systems at temperatures 1073, 1173 and 1273 K are determine
d. Also, integral mixing enthalpies in the temperature interval 350-1300 K
are determined and given in the enthalpy isotherm diagram. (C) 1999 Elsevie
r Science B.V. All rights reserved.