Liquid-liquid partition of perchlorate ion in the aqueous two-phase system formed by NaNO3 + Poly(ethylene glycol) + H2O

Partitioning of water‐soluble vitamins in biodegradable aqueous two‐phase systems: Electrolyte perturbed‐chain statistical associating fluid theory predictions and experimental validation

“…The number of ePC‐SAFT binary interaction parameters (≤4) between species and ATPS phase formers used for the prediction of K is lower than the number of parameters used only for data correlation, for example, with extended Chen‐NRTL (6 interaction parameters) 24 . Also, the high deviations of extended Chen‐NRTL of ≈30% between the experimental and correlated data have been much reduced with ePC‐SAFT (Table 6).…”

“…For VB3 amide just one binary interaction parameter was introduced (vitamin- The number of ePC-SAFT binary interaction parameters (≤4) between species and ATPS phase formers used for the prediction of K is lower than the number of parameters used only for data correlation, for example, with extended Chen-NRTL (6 interaction parameters). 24 Also, the high deviations of extended Chen-NRTL of ≈30% between the experimental and correlated data have been much reduced with ePC-SAFT (Table 6). This is a great result; it means that using these parameters ePC-SAFT allows a priori predicting K values in similar systems with reasonable accuracy ( Table 6).…”

“…The experimental effort can be much reduced with thermodynamic models that are capable to predict the partitioning of different vitamins in ATPS. In previous works, authors tried to describe and correlate partitioning of different compounds in ATPS using models for example, extended Chen‐NRTL, 24 Wilson 25 in PEG–inorganic salt ATPS and with Pitzer model, 26 extended NRTL 27 and modified UNIQUAC 27 in PEG–organic salt ATPS. Also, one model based on Statistical Associating Fluid Theory (SAFT) has been used for the modeling of protein partitioning in PEG–inorganic salt ATPS 28 .…”

Activity Coefficients of CsCl in PEG 200–H2O and PEG 600–H2O Mixtures at 298.15 K

“…Electrolyte solutions widely exist in nature and have been applied extensively. Especially, the systems composed of inorganic salts + polymer + water have been used to form the aqueous two phase systems (ATPSs). − During the past decades, ATPs were greatly developed for applications in extraction, separation, and recycling protein, antibiotics, and enzymes, etc., therefore the thermodynamic properties are very important for understanding various interactions in the solution.…”