Chlorine bleaching kinetics

The stoichiometric relationship between chlorine dioxide added and color removed during bleaching is nonlinear, but it is independent of temperature, pH, and pulp concentration under conditions normally used. Models used to explain the kinetics and stoichiometry show a strong dependence on chromophore concentration that probably results from differences in the reaction rates of the various chromophores present in the pulps (80). 

Gunnarsson, N. P-L, and S. Ljunggren. 1996. The kinetics of hgnin reactions during chlorine dioxide bleaching. Part I. Influence of pH and temperature on the reaction of l-(4, 4-dimethoxyphenyl) ethanol with chlorine dioxide in aqueous solution. Acta Chem. Scand. 50 422-431. 

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