A Two-Parameter Theoretical Model for Predicting the Activity and Osmotic Coefficients of Aqueous Electrolyte Solutions

Journal of Solution Chemistry(2020)

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摘要
thermodynamic model of electrolyte solutions is proposed. The model consists of a long-range term expressed by the Pitzer–Debye–Hückel equation (PDH) and a short-range term expressed by the molecular interaction volume model (MIVM). The new model was fitted with 39 different types of single electrolyte systems and was compared with the Pitzer equation, and the mean standard deviation (SD) and the mean average relative deviation (ARD
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关键词
Aqueous electrolyte solution, MIVM, Pitzer equation, Activity and osmotic coefficient, eUNIQUAC-NRF model
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