Prediction of vapor pressure for nonaqueous electrolyte solutions using an electrolyte equation of state

Thermodynamic Properties of Nonaqueous Single Salt Solutions Using the Q-Electrolattice Equation of State

“…The vapor pressure results of Zuo and Fürst (1997) are generally better than those of this work. However, vapor pressure was the only property they considered for parameter fitting and comparison to experimental data.…”

“…Its evaluation is performed by coupling the Pottel model for dielectric constant presented by Zuo and Fürst (1997) to the EOS. This model takes into account the change in the dielectric constant of the solvent due to the presence of electrolytes.…”

“…(2) are presented in Table 1. For ethanol, the parameters are equal to those presented by Zuo and Fürst (1997). For methanol, new parameters have been obtained based on the experimental dielectric constant presented by Davidson (1957) and Shirke et al (2000), in a temperature range from 176.60 to 318.15 K. The average absolute relative deviation (AARD(%)) for dielectric constant of methanol obtained with the new set of parameters is 1.81%.…”

“…In addition to vapor pressure, this work focuses on density, mean ionic activity coefficient, and osmotic coefficient. The performance of the Zuo and Fürst (1997) model for predicting those properties is unknown. Figure 4 shows examples of thermodynamic properties of LiCl in methanol modeled by the Qelectrolattice EOS.…”

“…Zuo and Fürst (1997) applied an EOS constituted of four terms (one repulsive term, two attractive shortrange terms, and one long-range term) to correlate vapor pressures and mean ionic activity coefficients of single salts in methanol, ethanol, 2-propanol, and acetonitrile solutions. Held et al (2012) employed the ePC-SAFT EOS in order to correlate liquid densities, osmotic coefficients, and mean ionic activity coefficients at 298.15 K of single salts in methanol and ethanol solutions, presenting also new experimental data for many electrolyte systems.…”