On the hydrolysis of niobium(V) and tantalum(V) in 3 mol dm–3 KCl at 25 °C. Part 1. Construction of a thermodynamic model for NbV

Abstract

The hydrolysis of Nb^V in 3.0 mol dm^–3 KCl has been studied by potentiometric measurement of the H₃O⁺ ion concentration with a glass electrode. The results have been treated both graphically and numerically, and show that the hydrolysis process can be considered to be homonuclear. A comparison has been made with other data in the literature and a hydrolysis model for Nb^V proposed using the modified Bromley theory.