Hydrolysis of the Thorium(IV) Ion in Magnesium, Calcium, Strontium and Barium Chloride Media
نویسندگان
چکیده
The hydrolysis of the thorium(IV) ion in various concentrations of magnesium, calcium, strontium and barium chloride media was studied by the emf method at 25 °c. The data show that the extent of thorium hydrolysis decreases with increasing concentration and hydration energy of the medium ions. The contribution of the concentration of the medium ions to the total medium effect is higher than the contribution of their energy of hydration. The stability constants of the hydrolytic complexes Th2(0H)2+ and Th2(0H)3~+ also differ slightly from one concentration of medium to another. The obtained data a!'e in agreement with the linear free energy relationship proposed for metal ion hydrolysis.
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