Measurement and correlation of osmotic coefficients and evaluation of vapor pressures for solutions of CaCl2 and Ca(NO3)2 in ethanol at 298 K

Apparent molal volumes of the solutions of CaCl2 and Ca(NO3)2 in ethanol at 298.15: experimental data and correlation by local composition models

“…The results show that the considered models correlate the apparent molal volume with a good precision. The excess Gibbs energy parameters needed for the e-NRTL and the NRF are taken from [18] and those needed for MNRTL and EW models have been obtained by fitting of the model equations to the osmotic coefficients reported in reference [18] and tabulated in Table 6.…”

Isopiestic study of the solutions of MnCl2, CoCl2 and NiCl2 in methanol and ethanol at 298.15K

“…The isopiestic apparatus employed in the present work is essentially similar to the one used previously by ZafaraniMoattar and co-workers [5][6][7]13,14]. This apparatus consisted of a five-leg manifold attached to round-bottom flasks.…”

“…The local composition models used in this work previously have been applied for correlation of the osmotic coefficient data in the case of electrolyte solutions of alcohols by ZafaraniMoattar and Jahanbin Sardroodi [5][6][7]14] and the details of these models have been given there, hence, we are not present details of the models here.…”

“…Zafarani-Moattar and Jahanbin Sardroodi [5][6][7]14] have shown that for electrolyte solutions of methanol and ethanol the values of ρ giving the best results are 26 and 27, respectively. Here, we used these values for the studied solutions.…”

“…However, contrary to the solutions of 1:1 electrolytes, solutions of non 1:1 solutes in non aqueous solvents rarely have been studied. There are some reports in the literature for vapor pressure and osmotic coefficients of the solutions of CaCl 2 , Ca(NO 3 ) 2 , CuCl 2 and ZnCl 2 in methanol and ethanol [2][3][4][5][6][7][8]. However, there is not any report regarding to the thermodynamic properties of the solutions of the transition metal chlorides in alcohols.…”