Stepwise dissociation constants of N-(β-hydroxyethyl) ethylenediamine-N, N',N'-triacetic acid
The stepwise dissociation constants of N-(β-hydroxyethyl)ethylenediamine-N,N',N'-triacetic acid have been determined potentiometrically at 298.15K and at ionic strength of 0.1; 0.5; 1.0. Potassium nitrate and chloride were used as background electrolytes. The thermodynamic constants have been calculated by extrapolation to the zero ionic strength of the obtained constants using the equation with one individual parameter. The results were compared with the data from literature on related compounds.