HYDROLYSIS OF NB(V) AND TA(V) IN AQUEOUS KCL AT 25-DEGREES-C .2. CONSTRUCTION OF A THERMODYNAMIC MODEL FOR TA(V)

In this work the hydrolysis of Ta(V) in 3.0M KCI has been studied by m easuring the N3O+ ion concentration with a glass electrode. The experi mental work consisted of automatically controlled potentiometric titra tions. The results were treated using graphical and numerical methods and, as a result, the hydrolysis process can be considered as a homonu clear protolysis. Finally, the results obtained were compared with oth er data found in the literature and a hydrolysis model for Ta(V) was b uilt by means of the modified Bromley theory.