Studies of the rate of inversion of sucrose in aqueous solutions of some strongly dissociated acids. Part II. Acidity constants for acetylenedicarboxylic and propiolic acids

Abstract

The rates of inversion of sucrose in dilute aqueous solutions of acetylenedicarboxylic acid and of its monopotassium salt have been measured at 25 °C. The first and second acidity constants have been calculated. The exact values found depend upon the magnitude of the primary kinetic salt effect on the reaction. Measurements have also been made on solutions of propiolic acid. The acidity constant values have been confirmed by pH titration.