Solute-solvent effects on the dissociation of oxalic acid in aqueous mixtures of ethylene glycol solvent at different temperatures

摘要

The dependence of the dissociation constants of oxalic acid on temperature and composition of ethylene glycol-water binaryl mixtures have been studied. Thermodynamic and extrathermodynamic analysis of the obtained results have been examined. The pK values have been correlated with the dielectric constant of the medium according to Born's electrostatic equation.