Overview
Applied Photophysics SX20 stopped-flow spectrometer can be used to study the species-specific rate constants of the reactions between FeVI and SAs. Values of k at pH 7.0 and 8.0 were used in this study, to learn the half-lives of the elimination of SAs by FeVI. For the practical application of this work, if FeVI concentration is in excess at pH 8.0 and 25.0 °C then the removal of SAs would be short and in the range of 12.52 – 361.20 s depending on the SA species. Due to the dependence of this oxidation reaction on FeVI concentration and pH, application conditions could be fine tuned to majorly reduce time spent in the removal of SAs.
