The use of glass electrodes for the determination of formation constants-III Optimization of titration data: The esta library of computer programs.

Difficulties with the analysis of titration data for the determination of formation constants are discussed. Considerable differences between published values can, in part, be attributed to incorrect "model selection", i.e., incorrect selection of chemical species. Experimental errors also contribute to the problem in ways that are neither well understood nor easy to overcome. The library of computer programs described, called ESTA (Equilibrium Simulation for Titration Analysis), has been written to investigate better methods of optimizing formation constants from potentiometric titration data.