Critical evaluation of CuSO4-H2O system up to solubility limit, from eutectic point to 373.15 K

David Sibarani, Hannu Sippola*, Pekka Taskinen, Daniel Lindberg

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

66 Lataukset (Pure)

Abstrakti

The solubility of copper(II) sulfate in water as a function of temperature and ionic strength is successfully modelled using Pitzer formalism. Four types of experimental data from the literature were implemented for the assessment, namely activity and osmotic coefficients, freezing point depression and solubility of CuSO4 in water. This work proved that four Pitzer parameters with eight terms are sufficient to create a consistent thermodynamic model of the CuSO4-H2O system up to 5 mol/kg-H2O of CuSO4, from the eutectic point to 373.15 K. The whole optimization study included a critical deviation analysis to sort out less reliable experimental data. To verify the results of this work, comparisons were carried out with experimental data which were not included in the assessment, i.e. the vapour pressure of the saturated solution, thermodynamic values of the cell reaction as well as electrochemical cell potential (EMF).

AlkuperäiskieliEnglanti
Artikkeli117689
Sivumäärä18
JulkaisuChemical Engineering Science
Vuosikerta257
Varhainen verkossa julkaisun päivämäärä27 toukok. 2022
DOI - pysyväislinkit
TilaJulkaistu - 10 elok. 2022
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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