Quenching of Oscillations in the Permanganate-Hydroxylamine Reaction

Reduction of Colloidal Manganese Dioxide by Manganese(II)

“…A comparison of Eqs. [9] and [15] leads to the requirement that the value of the kinetic order of Mn 2+ be the same for both the parent and pyrophosphate-catalyzed reactions. Indeed, reasonably close values were obtained (0.58 ± 0.02 and 0.64 ± 0.01, respectively).…”

Quenching Analysis of the Permanganate−Hydroxylamine Oscillator

“…The quenching method often can provide a large set of fairly precise data of direct kinetic relevance, which can be used for selection and optimization of models for oscillating reactions, as we have demonstrated previously. , The possibility of quenching small-amplitude oscillations in a permanganate system was demonstrated in ref . The purpose of the present paper is to undertake a detailed experimental study to get the quenching data for the most important manganese species in the oscillatory system.…”

“…32,33 The possibility of quenching small-amplitude oscillations in a permanganate system was demonstrated in ref 34. The purpose of the present paper is to undertake a detailed experimental study to get the quenching data for the most important manganese species in the oscillatory system.…”

Normal Modes for Chemical Reactions from Time Series Analysis

“…Quenching techniques, where an oscillatory reaction is driven to its unstable stationary state by precisely timed perturbations, have been successfully applied to several experimental chemical systems. [7][8][9][10] These studies have focused on the Jacobian matrix of the nonequilibrium stationary state to provide insights into the possible restrictions of a scheme of mechanistic steps. The elements of the Jacobian matrix tell how each dynamical species responds to all of the other dynamical species, as well as to itself, and therefore provide vital information on allowed and forbidden steps in a chemical mechanism.…”

“…The quenching method has been used to investigate the mechanisms of a number of different chemical systems. 9,10 In this paper we present a new method for determining the complete Jacobian matrix of an n-species chemical system in a stable stationary state. The method consists of making n time series measurements of a single property that is a linear (but not necessarily known) function of the concentrations.…”