Mixing effects on the protonation of some polycarboxylates in NaClaq + KClaq at different ionic strengths |
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| Authors: | Clemente Bretti |
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| Institution: | Department Chimica Inorganica, Chimica Analitica e Chimica Fisica dell’Università, Salita Sperone 31, 98166 Messina, Italy |
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| Abstract: | Protonation constants of succinic, 1,2,3-propanetricarboxylic and 1,2,3,4-butanetetracarboxylic anions were determined in NaClaq + KClaq mixtures, at three ionic strengths, I = 1.2, 3 and 4.5 mol L−1. Experimental evidences showed that the function log KH = f(y) (y = Na+]/(Na+] + K+])) is not linear, indicating mixing effects on the protonation constants. The Guggenheim zeroth approximation holds that the above function can be written as: |
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| Keywords: | Protonation constants Polycarboxylates Electrolyte mixtures Mixing effects |
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