Spectrophotometric Determination of Ionization Constants of Some Organic Compounds in Aqueous Solution

Ionization constants of some phenols and anilines in aqueous solution with a ionic strength of 0.01 were measured at 25 degrees C by spectrophotometric method. The set of substrates was selected on the basis of the results of preliminary calculations of ionization constants in terms of an elemental linear empirical approach with account taken of the lack of the corresponding consistent published data.