Measurement and modelling of mean activity coefficients of aqueous mixed electrolyte solution containing glycine |
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| Institution: | 1. School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China;2. Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin 300457, China;1. Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran;2. Research Lab of Hydrometallurgy, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran |
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| Abstract: | Electrochemical measurements were made on (H2O + NaBr + K3PO4 + glycine) mixtures at T = 298.15 K by using ion selective electrodes. The mean ionic activity coefficients of NaBr at molality 0.1 were determined at five K3PO4 molalities (0.01, 0.03, 0.05, 0.07, and 0.1) mol · kg−1. The activity coefficients of glycine were evaluated from mean ionic activity coefficients of NaBr. The modified Pitzer equation was used to model the experimental data. |
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