SOLUBILITIES FOR THE 2 TERNARY-SYSTEMS WATER PLUS LITHIUM BROMIDE PLUS LITHIUM IODIDE AND WATER PLUS LITHIUM-CHLORIDE PLUS LITHIUM-NITRATE AT VARIOUS TEMPERATURES

Solubilities for the water + lithium bromide + lithium iodide (salt mole ratio 4:1) and the water + lithium chloride + lithium nitrate (salt mole ratio 2.8:1) systems were measured by means of a visual polythermal method from 277.75 to 415.15 K and from 284.85 to 351.75 K, respectively. The transition point for the water + lithium bromide + lithium iodide system existed at 65.3 mass % salts and 293.85 K and at 54.2 mass % salts and 295.75 K for the water + lithium chloride + lithium nitrate system. Two solid-liquid phases for these two ternary systems were stable below and above the individual transition point. Two least-squares regression equations as a function of absolute temperatures were obtained from the individual measured solubility data for these two ternary systems. The maximum and average absolute deviations of the calculated values from the individual experimental data were 0.29 and 0.10 % for the water + lithium bromide + lithium iodide system and 0.93 and 0.32% for the water + lithium chloride + lithium nitrate system, respectively.