Study of the effect of the medium on the reaction constants for the dissociation of nitrophenols in water—dimethylsulfoxide mixtures at 25°C

Abstract

The effect of the medium on the reaction constants of the dissociation of nitrophenols in water—dimethylsulfoxide mixtures ranging from 0.0 to 0.8 mole fraction of DMSO is presented. In this study, use has been made of some linear free energy relationships. For standard reactions, the ionization processes of nitrobenzoic acids, at the same mole fractions, are used. The trend of the three reaction constants is very similar and their values are quite close.