SOLUBILITIES, VAPOR-PRESSURES, DENSITIES, AND VISCOSITIES OF THE (WATER PLUS LITHIUM BROMIDE PLUS LITHIUM IODIDE PLUS LITHIUM-CHLORIDE) SYSTEM

Measurements of thermophysical properties of the (water + lithium brom ide + lithium iodide + lithium chloride) system (LiBr:LiI:LiCl = 4.5:1 :2 by mole ratio) were performed as functions of concentration and tem perature. Solubilities were measured by a visual polythermal method at temperatures from (248.59 to 350.46) K. Regression equations were obt ained with a least-squares method, and the average absolute deviations of the calculated values from the experimental data were 0.10% (solut ion temperature 284.59 K) and 0.12% (temperature > 284.59 K), respecti vely. The vapor pressures were measured by a boiling point method at l ithium salts concentrations from (50.0 to 70.0) mass % and temperature s from (318.36 to 455.75) K. The experimental data were correlated wit h an Antoine-type equation. The average absolute deviation of the calc ulated values from the experimental data was 1.83%. Densities and visc osities were measured at concentrations from (50.0 to 64.0) mass % and temperatures from (283.15 to 333.15) K. Regression equations for dens ities and viscosities were obtained with a least-squares method, and t he average absolute deviations of the calculated values from the exper imental data were 0.08% and 0.87%, respectively.