Distribution of the reagent and the complex:
After we have considered the formation of the complex, the next step will be its distribution between the aqueous and the organic phases. Once we are considering the distribution of the complex, we will have to consider the distribution of the reagent also.
Distribution of the reagent
KDR=[(R4As+ .Cl - )]o/[(R4As+ .Cl - )]a
Distribution of the complex
KDX = [(R4As + .MnO4- )]o/[(R4As + .MnO4- )]a