Theoretical confirmation of an established experimental phase diagram of ternary system (Cu(SO4)–Zn(SO4)–H2O) at 25 °C: Pitzer parameters determination | Zendy

Bouchra Mekkaoui | Zendy; Mohamed Jouaiti | Zendy; Abderrahim Barroug | Zendy; Ahmed Jouaiti | Zendy; Latifa Lâallam | Zendy

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Theoretical confirmation of an established experimental phase diagram of ternary system (Cu(SO4)–Zn(SO4)–H2O) at 25 °C: Pitzer parameters determination

Author(s) -

Bouchra Mekkaoui,

Mohamed Jouaiti,

Abderrahim Barroug,

Ahmed Jouaiti,

Latifa Lâallam

Publication year - 2019

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2019.04.010

Subject(s) - phase diagram , materials science , thermodynamics , ternary operation , ternary numeral system , phase (matter) , diagram , chemistry , physics , statistics , organic chemistry , mathematics , computer science , programming language

The isotherm phase diagram of the ternary system (Cu(SO4)–Zn(SO4)–H2O) was firstly established at 25 °C using a synthetic method of conductivity measurement. Then, we made use of volumetric dosing, in order to identify solid phases. The obtained isotherm has revealed the presence of two solid phases that having a stable equilibrium with the liquid phase, which are Cu(SO4)·5H2O, and the Zn(SO4)·7H2O. This study was confirmed numerically while going through the calculation of the binary and ternary Pitzer parameters for the studied salts through a Nelder Mead simplex algorithm. Indeed, the comparison of these with the bibliographic data has confirmed the accuracy of our experimental results.

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