Liquid–liquid equilibrium of the Ucon 50-HB5100/sodium citrate aqueous two-phase systems
- Tubio, Gisela
- Nerli, Bibiana B.
- Picó, Guillermo A.
- Venâncio, Armando
- Teixeira, J. A.
Publication date
February 2009
DOI Publisher
Elsevier BV ISSN
1383-5866 Journal
Separation and Purification Technology Citation count (estimate)
23Abstract
The phase diagrams of Ucon 50-HB5100/sodium citrate aqueous two-phase systems were determined at 5, 20 and 40 ◦C. Two medium pHs 5.20 and 8.20 were assayed. The binodal curves were satisfactorily described using a four-parameter sigmoidal equation. The two-phase area was expanded by increasing both pH and temperature. The reliability of the measured tie line compositions was ascertained by correlation equations given by Othmer–Tobias and Bancroft.VALNATURACONICETALFA II-0440-FA-Exchange programme between Universities of the European Union and Latin Americ
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