Experimental and theoretical determination of vapor pressures of NaClKCl, NaBrKBr and NaClCaCl2 aqueous solutions at 298 to 343 K

摘要: Abstract In this study the vapor pressures of three mixed electrolyte aqueous solutions, NaClKClH 2 O, NaBrKBrH O and NaClCaCl H have been measured in temperature range 298–343 K by static method. The maximum ionic strength solutions under is 4 m. A primary model based on mean spherical approximation principle proposed to predict pressure solutions. parameters used are obtained directly from results single reported our previous work. No additional needed. predicted agree well with experimental ones, overall deviations being 0.70, 1.02 0.64% for respectively. concentrated strengths higher than 3 m much larger those dilute order obtain more accurate results, a modified introducing an adjustable parameter account interactions between ions. correlated satisfactory. calculated largely reduced, 0.42, 0.71 0.47%