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Hydrolysis of the Thorium(IV) Ion in Magnesium, Calcium, Strontium and Barium Chloride Media

Terezija M. Šuranji ; Faculty of Science, The University, 21000 Novi Sad
Nikola B. Milić ; Faculty of Science, Svetozar Markovic University, 34000 Kragujevac, Yugoslavia

Sažetak

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
6+ 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.

Ključne riječi

Hrčak ID:

194265

URI

https://hrcak.srce.hr/194265

Datum izdavanja:

1.9.1982.

Posjeta: 777 *