Solubility of proline–leucine dipeptide in water and in aqueous sodium chloride solutions from T=(288.15 to 313.15)K

Temperature and salt addition effects on the solubility behaviour of some phenolic compounds in water

“…It can be noted that the increase of temperature leads to an easier solubility of vanillin in KCl solution (minimal D tr G value). Similar results were reported by Lampreia et al [19] in their study of the solubility of proline-leucine dipeptide in water and in aqueous NaCl solutions at different temperatures.…”

“…The first family is represented by gallic and protocatechuic acids, the second one is reserved to the other studied PhC. It is well known that the solubility of polar compounds which form hydrogenbond with water such as the studied PhC is significantly decreased due to an increase in the standard molar enthalpy values of solution (bond formation-release of energy) [18,19]. This is in good agreement with our above classification which can be explained by the fact that the first family carries more than one hydroxyl group and are thus more soluble, whereas the second family bears only one hydroxyl group and one methoxy group at least and are therefore less soluble compared to the first family (tables 2 and 4).…”

The effect of ammonium sulfate on the solubility of amino acids in water at (298.15 and 323.15)K

“…Alternatively, the empirical Setschenow equation usually used to describe the effect of the addition of an electrolyte on the solubility of a non-electrolyte in water [22,23], was applied to the systems studied in this work. Unfortunately, the quality of the correlations was not good enough even for the most simple systems with glycine or L-serine.…”

Temperature and sodium chloride effects on the solubility of anthracene in water

“…There can either be a decrease or an increase in solubility of the nonelectrolyte with increasing concentrations of added electrolyte. These phenomena are known as salting-out and salting-in, respectively [24,[25][26][27]. Salting effect can depend on temperature [28,29].…”