On Interaction of Sulfur(IV) Oxide with Aqueous Solutions of Ethanolamines

摘要

Potentio- and conductometric titration was used to study the interaction in sulfur(IV) oxide-ethanolamines-water systems in comparison with the previously obtained pH-metric data on how the corresponding onium sulfites, hydrosulfites, and pyrosulfites are formed. The ionic and molecular compositions of these solutions were calculated. Correlations between the characteristics of pH-metric titration curves of aqueous solutions of ethanolamines with sulfur(IV) oxide and the relative stability of onium sulfates were revealed.