Molten potassium pyrosulfate: the reactions of alkali metal oxides, peroxides, nitrites and nitrates

Abstract

The reactions of lithium oxide, sodium peroxide, the nitrites of sodium and potassium, and the nitrates of lithium, sodium and potassium with molten potassium pyrosulfate were investigated. It was found that gaseous products of reactions of peroxide, nitrites and nitrates consisted of, respectively, oxygen, nitrogen dioxide plus nitric oxide, and nitrogen dioxide plus oxygen. Pyrosulfate, after accepting an oxide ion from each of the above oxyanions, was converted into sulfate. The range of temperatures and stoichiometries of these reactions have been established.