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Solubility Prediction of FeSO4·7H2O–ZnSO4·xH2O–H2O (x = 6, 7) System Using the Pitzer Ion-Interaction Model

  • PHYSICOCHEMICAL ANALYSIS OF INORGANIC SYSTEMS
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Abstract

The component solubilities of FeSO4·7H2O–ZnSO4·xH2O–H2O (x = 6, 7) systems at 25 and 40°C were calculated using Pitzer’s ion-interaction model and its Harvie–Weare extension. The calculated results of FeSO4 · 7H2O–ZnSO4 · xH2O–H2O (x = 6, 7) systems are in good agreement with the experimental data both at 25 and 40°C. The model can be extended to a wider range of temperatures for single- or multi-component systems using temperature-dependent binary parameters, providing an alternative approach for the prediction of electrolyte solubilities.

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Funding

This work was financially supported by the National Natural Science Foundation of China (Grant nos. 51804146, 51964029), the National key R & D plan of China (Grant no. 2018YFC1900402), the Applied Basic Research Project of Yunnan Province in China (no. 202001AT070079), and the Analysis Testing Fund of Kunming University of Science and Technology (nos. 2020T20090030, 2020P20181102007).

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Authors and Affiliations

  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, China

    Yubo Xing, Zhigan Deng, Fuxian Yang, Chang Wei, Xingbin Li & Minting Li

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  1. Yubo Xing
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  2. Zhigan Deng
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  3. Fuxian Yang
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  4. Chang Wei
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  5. Xingbin Li
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  6. Minting Li
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Correspondence to Chang Wei.

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Yubo Xing, Deng, Z., Yang, F. et al. Solubility Prediction of FeSO4·7H2O–ZnSO4·xH2O–H2O (x = 6, 7) System Using the Pitzer Ion-Interaction Model. Russ. J. Inorg. Chem. 66, 1549–1553 (2021). https://doi.org/10.1134/S0036023621100211

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