STUDIES ON THE HYDROLYSIS OF METAL IONS, PART 35. THE HYDROLYSIS OF THE LANTHANUM ION, LA3+

Abstract : The hydrolysis equilibria of the La(III) ion have been studied at 25C by hydrogen ion concentration measurements, using a glass electrode. The total (La(III)) was varied between 0.1 and 1.0 M, whilst the concentration of the ClO4- ion was held constant at 3 M by the addition of LiClO4. The experimental conditions necessary for accurate results to be obtained, when the hydrolysis equilibria must be studied in poorly buffered solutions, are discussed in some detail.