Measurement and Correlation of Phase Equilibria in Aqueous Two-Phase Systems Containing Polyoxyethylene Cetyl Ether and Three Organic Salts at ...
By a News Reporter-Staff News Editor at Chemicals & Chemistry -- Current study results on Engineering - Chemical and Engineering Data have been published. According to news reporting out of Changchun, People’s Republic of China, by VerticalNews editors, research stated, “The polymer polyoxyethylene(20) cetyl ether (C56H114O21, POELE20) and three salts (K2C2O4, K2C4H4O6, and K3C6H5O7) were the phase-forming materials to build the aqueous two-phase system (ATPS) at the temperatures 288.15, 298.15, and 308.15 K The data of the phase diagram including binodal curve data and tie-line data were determined and fitted by classical equations, and they obtained the satisfactory correlation effect. The phase-forming ability of salt composed of the same cation was investigated by three factors, namely, the valence of the anion, the Gibbs free energy of the anion, and the value of effective excluded volume (EEV).”
Funders for this research include Natural Science Foundation of Jilin Province, Natural Science Foundation of Jiangsu Province, National Natural Science Foundation of China, Science and Technology Research Foundation of Jilin Province Department of Education.
Our news journalists obtained a quote from the research from Jilin Normal University, “It was found that the phase-forming ability of salt strengthened when the values of said three factors went up. The results of the analysis on the data from the present work and that in our previous paper showed that the order of the phase-forming ability of salts was KOH < K2C2O4 < K2C4H4O6 < K2CO3 < K3C6H5O7 < K3PO4. The effect of temperature on phase-forming of the studied ATPSs was discussed through the phase diagram and EEV value, and it was showed that the increase in temperature is beneficial to separating two phases for ATPSs.”
According to the news editors, the research concluded: “For the investigated systems, the effect of temperature on the liquid liquid equilibrium of ATPSs was studied by the phase diagram and the slope of the tie-line (STL), and it was found that the absolute value of the STL increased with rising temperature.”
For more information on this research see: Measurement and Correlation of Phase Equilibria in Aqueous Two-Phase Systems Containing Polyoxyethylene Cetyl Ether and Three Organic Salts at Different Temperatures. Journal of Chemical and Engineering Data , 2018;63(3):625-634. Journal of Chemical and Engineering Data can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Chemical and Engineering Data - http://www.pubs.acs.org/journal/jceaax)
Our news journalists report that additional information may be obtained by contacting Y. Lu, Jilin Normal Univ, Minist Educ, Key Lab Preparat & Applicat Environm Friendly Mat, Changchun 130103, Jilin, People’s Republic of China. Additional authors for this research include X.Q. Yang, Z. Sun, K.Y. Cui and Z.J. Tan.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1021/acs.jced.7b00831. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
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CITATION: (2018-04-13), Researchers from Jilin Normal University Report Recent Findings in Chemical and Engineering Data (Measurement and Correlation of Phase Equilibria in Aqueous Two-Phase Systems Containing Polyoxyethylene Cetyl Ether and Three Organic Salts at ...), Chemicals & Chemistry, 3645, ISSN: 1944-1525, BUTTER® ID: 015480081
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