THERMODYNAMIC PROPERTIES OF AQUEOUS-ELECTROLYTE SOLUTIONS .3. VAPOR-PRESSURE OF AQUEOUS-SOLUTIONS OF LINO3, LICI + LINO3, AND LIBR + LINO3

Vapor pressures were determined for binary and ternary mixtures of H2O-LiNO3, H2O-LiCl + LiNO3 (salt mole ratio 0.88:0.12), and H2O-LiBr + LiNO3 (salt mole ratio 0.70:0.30) at 303.15-373.15 K and in the range of concentration from 9.874 to 60.687 wt %. The vapor pressure measurements were made by the differential static method. Experimental data were fitted to the Antoine type of equation log (P/kPa) = A (X) + B(X)/(T/K-1) + C(X)/(T2/K-2), where A, B, and C are concentration-dependent parameters. The calculated values from these equations were in good agreement with the experimental data.