Sustained and Damped Oscillations in the Permanganate-Hydroxylamine Reaction in a Continuous-Flow Stirred Tank Reactor

Article abstract of DOI:10.1021/j100168a019

The reaction system MnO4^--NH2OH-H3PO4 in a CSTR exhibits sustained and damped oscillations, if MnO4^- ions are at a stoichiometric ratio or in an excess.The design of this permanganate chemical oscillator is based on the phase diagrams in the ₀-k₀ and ₀-k₀ planes.An interaction of solvated Mn(IV)_sol ions, which are in equilibrium with (MnO2)_col stabilized by the presence of H2PO4^- ions, with manganese species mostly in higher oxidation states seems to be the core of our permanganate oscillator with hydroxylamine.