Abstract
The effect of the ionic environment on the dissociation constant of acid-base indicators is accounted for by using the specific interaction theory (SIT) of Broensted, Scatchard, and Guggenheim. It is shown that the SIT may be applied to evaluate the activity coefficients of organic ions, regardless of their size and structure, if suitable modifications are introduced.
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Salvatore, F., Ferri, D. & Palombari, R. Salt effect on the dissociation constant of acid-base indicators. J Solution Chem 15, 423–431 (1986). https://doi.org/10.1007/BF00646265
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DOI: https://doi.org/10.1007/BF00646265