Estimation of solubility parameter using equations of state

Estimation of solubility parameter by the modified ER equation of state

“…As can be seen, the values of the solubility parameters decrease with increasing the temperature of the system at constant pressure. This is due to this fact that when the temperature increases, the cohesive forces decrease [20]. Thus, the value of the solubility parameter is reduced.…”

“…The latest EOS approach has been done by Zeng et al [18] who used the PC SAFT (perturbed-chain statistical associating fluid theory) equation of state for calculation of the HSPs of n-alkanes and 1-alcohols. In addition, the relations between the temperature and internal pressure with the solubility parameter have been studied by several authors [19,20].…”

Correlation of solid solubility of 1‐hydroxy‐9,10‐anthraquinone derivatives in supercritical carbon dioxide

“…[13] The solubility parameters of CO 2 , δ 1 , is calculated by the internal pressure using Peng-Robinson equation of state. [14,15] The equation for calculating δ 1 is finally expressed as…”

Solubility prediction of bioantioxidants for functional solvent by group contribution method

“…The internal pressure is defined as the difference between the thermal pressure and the external pressure [12,13].…”

“…The above expression, Eq. (13), was combined with the regular solution theory to obtain the expression, for the solubility as follows:…”