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Prediction of activity and osmotic coefficients of fission product systems CsOH + CsX (X = Cl, Br, I) at 298.15 K

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Abstract

The activity and osmotic coefficients of fission product systems CsOH + CsCl, CsOH + CsBr and CsOH + CsI are of importance for studying the removal of cesium ions from radioactive wastewater and the hygroscopic growth of its aerosols. Various mixtures of alkali metal hydroxides and their halides are selected as the verification systems. Results indicate that the prediction effects of electrolyte MIVM (eMIVM) are better than that of Pitzer’s equation. Then, the activity coefficient, osmotic coefficient and excess Gibbs energy of the above mentioned systems are further predicted by both models. It is found that the predicted values of eMIVM are more reliable and reasonable.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China under Grant No. 51464022.

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Authors and Affiliations

  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan Province, People’s Republic of China

    Congyu Zhang, YuBo Xing & Dongping Tao

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  1. Congyu Zhang
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  2. YuBo Xing
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  3. Dongping Tao
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Correspondence to Dongping Tao.

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Zhang, C., Xing, Y. & Tao, D. Prediction of activity and osmotic coefficients of fission product systems CsOH + CsX (X = Cl, Br, I) at 298.15 K. J Radioanal Nucl Chem 323, 773–784 (2020). https://doi.org/10.1007/s10967-019-06989-6

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  • DOI: https://doi.org/10.1007/s10967-019-06989-6

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