الفهرس 
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Abstract
Despite the observation that ion-association is kinetically in solution there are relatively few studies of the kinetic nature of these ion paired entities in mixed solvent media especially for those of inorganic reactions although amira et al surveyed studies on the equilibria and kinetics behaviours of the aquation of some halogenopentamminecobalt III and CrIII complex ions in aqueous and in 10% of some organic solvents there seems a little information about the solvent effects on the ion pair rate constant of the studied reactions.