A Three Equation Method for the Numerical Evaluation of Acidity Constants of Single Equilibria from Spectrophotometric Data

Abstract

In this paper we devise a numerical method for the evaluation of acidity constants of single equilibria suitable for use when the limit absorbance of the pure species are unavailable since these species cannot be obtained pure in solutions. The method has been applied to the evaluation of the first acidity constant of methylglyoxal bis (4-pheny1-3-thiosemicarbazone) (MGBPT).