Influence of Organic Salts on the Phase Equilibrium of Biphasic Systems Containing the Nonionic Surfactant (Triton X-100): Experiment and Correlation

Liquid–Liquid Equilibrium of Aqueous Two-Phase Systems Formed by Nonionic Surfactants (Triton X-100, Triton X-165, or Triton X-305), Salts (NaNO3 or KNO3), and Water at Different Temperatures

“…The turbidimetric curves exhibit "L-type" profiles, as is usually observed in ATPSs formed by surfactants and electrolytes, 11,20,40 and the data at 298.2 K are similar to those obtained by Khayati et al 27 It is noteworthy that in the turbidimetric curve for the system formed by TX-100, NaNO 3 , and water at 328.2 K, there was a range in which the surfactant concentration slightly increased as the salt concentration also increased. This behavior has been reported by Silva et al 20 for systems formed by TX-100, choline chloride, and water.…”

“…From the analysis of the works reported in Table , there remains a need to comprehend the influence of temperature on the equilibrium data for ATPS formed by Triton surfactants and inorganic salts. Therefore, we evaluated the effect of temperature on the size of the biphasic region by comparing the turbidimetric curves and liquid–liquid equilibrium data obtained for the ATPS formed by TX-100, NaNO 3 , and water at 298.2, 313.2, and 328.2 K. The choice of this ATPS for this investigation is based on its distinction as the most recently published ATPS encompassing Triton surfactants and inorganic salts at a single temperature Figure illustrates the profile of the turbidimetric curves for the systems formed by TX-100, NaNO 3 , and water at different temperatures.…”

Liquid–Liquid Equilibrium Data of Various Micellar Aqueous Two-Phase Systems for the Extraction of Rhodamine B and Hexavalent Chromium

“…Owing to the comparatively minimal effect of temperature (as compared to the effect of salt) on the two-phasic region for micellar ATPSs, this article focuses on generating the equilibrium data for micellar ATPSs at ambient conditions (298.15 T/K and 101.325 P/kPa). Also, this further eases the applicability of the studied ATPSs for downstream processing. , …”

“…Also, this further eases the applicability of the studied ATPSs for downstream processing. 14,30 In this article, the phase-forming capability of 2-[4-(2,4,4trimethylpentan-2-yl) phenoxy] ethanol (hereafter referred to as Triton X-100 (TX-100)) surfactant was studied for ATPS formation with two organic and two inorganic salts. The phase diagrams/ binodal curves and tie-lines are generated for four different ATPSs at ambient conditions (298.15 T/K and 101.325 P/kPa).…”