抄録
Acid-base equilibria in supercritical water and alcohols are of great importance in controlling chemical processes in the high-temperature and high-pressure media. Recent advances in spectroscopic measurement of acid-base equilibria in supercritical water are reviewed together with those in conductmetric and potentiometric methods. I also present our recent study of acid-base equilibria in supercritical methanol using a flow-through apparatus and 2,5-dichlorophenol (DCP) as an indicator. It is explained how to determine the degree of dissociation of DCP in ambient to supercritical methanol from the absorption spectra at various concentrations of base.
