Molten potassium pyrosulfate: the reactions of alkali metal hydroxides, hydrogen carbonates and carbonates

Abstract

The reactions of hydroxides of lithium, sodium and potassium; hydrogen carbonates of sodium and potassium and carbonates of lithium, sodium and potassium with molten potassium pyrosulfate were studied. It was found that during these Lux-Flood acid-base reactions, hydroxides, hydrogen carbonates and carbonates reacted with pyrosulfate to produce water, water plus carbon dioxide and carbon dioxide alone respectively, as the gaseous products. Pyrosulfate, after accepting oxide ions from these bases, was found in each case to be converted into sulfate. The temperatures and stoichiometries of these reactions have been established.