Chemical selectivities disguised by mixing
The disguising of the intrinsic selectivity of cornpetitive reaction systems by the mixing process is dernonstrated experimentally using the fast nitrations of a number of aromatic compounds, a fast azo coupling reaction and a fast brornination. A mixing-reaction model is presented which allows a description and simulation of the coupling of the mass diffusion with the chemical reaction during the mixing process of two miscible reactant solutions. The usefulness of this model is demonstrated by comparison of prediction and experiment in the examples used.