On the basis of elementary chemical considerations, it is shown that proton-producing redox reactions of oxyanions are expected to be autocatalytic and to manifest propagating acidity fronts. The conditions of proton production in redox reactions are established and verified experimentally by the reactions of S2O32, S4O62, S2O42, SO32, S2O62, and N2H5+ with BrO3, IO3, CIO3, CIO2, and S2O82. Twenty new propagating acidity front reactions have been discovered among the possible combinations of these reactions.
ASJC Scopus subject areas
- Colloid and Surface Chemistry