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Osmotic and activity coefficient of 1-ethyl-3-methylimidazolium chloride in aqueous solutions of tri-potassium phosphate, potassium carbonate, and potassium chloride at T=298.15 K
Physical Chemistry Department, Faculty of Chemistry (Excellence of Science for New Materials and Clean Chemistry) University of Tabriz.
Physical Chemistry Department, University of Tabriz.ORCID iD: 0000-0002-6516-1230
2011 (English)In: Calphad, ISSN 0364-5916, E-ISSN 1873-2984, Vol. 35, no 3, p. 331-341Article in journal (Refereed) Published
Abstract [en]

Vapour–liquid equilibrium data (water activity, vapour pressure, osmotic coefficient, and activity coefficient) of the mixed electrolyte aqueous solutions, 1-ethyl-3-methylimidazolium chloride, (EmimCl) + tri-potassium phosphate, EmimCl + potassium carbonate, EmimCl + potassium chloride and their corresponding binary aqueous solutions have been measured by the isopiestic method at a temperature of 298.15 K. The osmotic coefficients for binary aqueous solutions were correlated to the Pitzer, modified Pitzer and TCPC models. The osmotic coefficient of mixed electrolyte with common anion was correlated to the Pitzer model. From these data, the corresponding mean activity coefficients, γ±">γ± , have been calculated. The activity coefficients of mixed electrolytes were calculated by Scatchard’s neutral electrolyte method. A modified Pitzer model has been used to predict the osmotic and activity coefficients of mixed electrolyte solution with common anion.

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 35, no 3, p. 331-341
National Category
Engineering and Technology Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-61899DOI: 10.1016/j.calphad.2011.04.008Scopus ID: 2-s2.0-79957505880OAI: oai:DiVA.org:ltu-61899DiVA, id: diva2:1073167
Available from: 2017-02-09 Created: 2017-02-09 Last updated: 2018-03-06Bibliographically approved

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Sarmad, Shokat

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