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Beyond biochemical functions, carbohydrates have great industrial and economic importance. To improve industrial processes and to develop new applications for these substances, the knowledge of their solubility behavior in different solutions is often necessary. Therefore, the purpose of this work was to collect experimental data on the solubility of fructose and sucrose in hydroalcoholic solutions of methanol and water, using a chromatographic method. The solubility was evaluated for the entire mole fractions of the binary mixture covering the temperatures from 298.15 K to 323.15 K. The results indicated that the chromatographic method is suitable for determining sugar concentration, but it implies an increased uncertainty over the results. The solubility of both sugars was low in methanol-rich binary mixtures, rising with the increasing proportion of water. Greater dependence of the solubility as a function of the composition of the binary mixture was observed for sucrose, indicating stronger molecular interaction and therefore greater deviation from ideality. The NRTL activity coefficient model and the PC-SAFT and CPA equations of state were successfully employed to correlate the solid-liquid equilibrium. The binary interaction parameters were optimized as a function of temperature. The NRTL model has shown greater deviations than those presented by the equations of state. Meanwhile, the equations of state have presented a similar performance. • Sucrose and fructose solubility in water-methanol mixtures determined by HPLC. • The experimental data were analyzed using CPA and SAFT equations of state along with the NRTL activity coefficient model. • Binary interaction parameters were generated as a function of temperature. • The equations of state CPA e SAFT worked better than the NRTL model. [ABSTRACT FROM AUTHOR]

• Solubility of K 2 SO 4 , Li 2 SO 4 , and (NH 4) 2 SO 4 in mixtures of water and methanol was determined. • The experimental data was correlated by the modified Pitzer model. • The modeling parameters were employed to predict salting-out precipitation. The study of electrolyte solutions is crucial for various industrial sectors. A thorough understanding of the solid–liquid equilibrium associated with mathematical models is necessary for the separation and purification of these materials, as well as for developing solution theories and process simulators. This study focuses on the solubility of K 2 SO 4 , Li 2 SO 4 , and (NH 4) 2 SO 4 in binary liquid solutions of water and methanol, at temperatures ranging from 283.2 K to 323.2 K. The results show that as the concentration of methanol increases, solubility decreases drastically while increasing temperature leads to an increase in solubility (except for Li 2 SO 4). The modified Pitzer model was successfully applied to describe the solid–liquid equilibrium, and it also explained the salting-out precipitation by the addition of an antisolvent. [ABSTRACT FROM AUTHOR]

The present work studies of NaCl, KCl and NH 4 Cl solubility in binary liquid solutions containing water and ethanol in the temperature range from 288.15 K to 328.15 K. Results showed that solubility decreases with increasing ethanol concentration and increases with increasing temperature, with exception of the NaCl, where the temperature has a minimum effect on its solubility. The modified Pitzer model was successfully applied to represent the solid-liquid equilibrium of the studied systems, describing the drowning-out precipitation by the addition of an antisolvent. • Solubility of NaCl, KCl and NH 4 Cl in mixtures of water and ethanol was determined. • The experimental data was correlated by the modified Pitzer model. • The modeling parameters were employed to predict salting-out precipitation. [ABSTRACT FROM AUTHOR]

• Solubility of NaCl, KCl and NH 4 Cl in mixtures of water and methanol was determined. • The experimental data was correlated by the modified Pitzer model. Experimental data and modelling of electrolyte solutions are important in different fields. Separation and purification of such materials depend on knowledge of solid-liquid equilibrium as well as the mathematical models allow the development of solution theories and process simulators. Therefore, the current work presents the study of NaCl, KCl and NH 4 Cl solubility in binary liquid solutions formed by water and methanol at temperatures ranging from 288.15 K to 328.15 K. Solubility decreases with increasing methanol concentration and increases with increasing temperature, with the exception of the NaCl, where the temperature has a minimum effect on its solubility. The modified Pitzer model was applied to describe the solid-liquid equilibrium and its successful implementation also described the salting-out precipitation by the addition of an anti-solvent. [ABSTRACT FROM AUTHOR]