A computational method for approximate evaluation of ionization constants from potentiometric data.
A general equation is given for the evaluation of proton dissociation constants from potentiometric data. The method is applicable to monobasic acids, and also polybasic acids, where the successive dissociation steps may or may not overlap. A computer program was employed for the calculations. The method was tested by evaluation of the constants for 22 acids, from monobasic to octobasic, with satisfactory agreement with literature data.
Gonzalez
A G
AG
Department of Analytical Chemistry, Faculty of Chemistry, University of Sevilla, 41012-Sevilla, Spain.
Rosales
D
D
Gomez Ariza
J L
JL
Perez
A G
AG