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Isopiestic determination of the osmotic and activity coefficients of the {yKCl + (1-y)K2HPO4}(aq) system at T=298.15 K
dc.creator | Popović, Daniela | |
dc.creator | Miladinović, Jelena | |
dc.creator | Todorović, Milica D. | |
dc.creator | Zrilić, Milorad | |
dc.creator | Rard, Joseph A. | |
dc.date.accessioned | 2021-03-10T11:34:08Z | |
dc.date.available | 2021-03-10T11:34:08Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 0021-9614 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1872 | |
dc.description.abstract | The osmotic coefficients of aqueous mixtures of KCl and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic vapor pressure method over the range of ionic strengths from (2.3700 to 11.250) mol . kg(-1) using CaCl2(aq) as the reference solution. Our new experimental results were modeled with an extended form of Pitzer's ion-interaction model equations, both with the usual mixing terms and with Scatchard's neutral-electrolyte mixing terms, and with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There is a dearth of previously published isopiestic data for mixtures containing salts of HPO42- (aq) and, consequently, no previous measurements are available for comparison with the present results. The present study yields Cl--HPO42- mixing parameters for these three models that are needed for modeling the thermodynamic activities of solute components of natural waters and other complex aqueous electrolyte mixtures. | en |
dc.publisher | Academic Press Ltd- Elsevier Science Ltd, London | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172063/RS// | |
dc.rights | restrictedAccess | |
dc.source | Journal of Chemical Thermodynamics | |
dc.subject | Aqueous solutions | en |
dc.subject | Isopiestic measurements | en |
dc.subject | KCl | en |
dc.subject | K2HPO4 | en |
dc.subject | Osmotic coefficients | en |
dc.subject | Activity coefficients | en |
dc.title | Isopiestic determination of the osmotic and activity coefficients of the {yKCl + (1-y)K2HPO4}(aq) system at T=298.15 K | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 1885 | |
dc.citation.issue | 12 | |
dc.citation.other | 43(12): 1877-1885 | |
dc.citation.rank | M21 | |
dc.citation.spage | 1877 | |
dc.citation.volume | 43 | |
dc.identifier.doi | 10.1016/j.jct.2011.06.017 | |
dc.identifier.scopus | 2-s2.0-84865208468 | |
dc.identifier.wos | 000295442500014 | |
dc.type.version | publishedVersion |