Cathodic Action of Uranyl‐5‐Sulfosalicylate Complexes at Dropping Mercury Electrode

Abstract

The uranyl ion in 5‐sulfosalicylic acid (5‐SSA) solution has been investigated by polarography. The constitution of the chelate species was confirmed by conductometric titration, under the experimental conditions: temperature 25±0.1C. pH = 2.0‐9.0. ligand concentration 10‐200 mM. At pH < 4.8, the chelate species, UO2(HA)22−, is predominant. At pH 6.0. the complex species. UO2(A)24 mainly exists. The chelate species. UO2(HA)22−, and UO2(A)24, co‐exist between pH 4.8‐6.0. The diffusion coefficients and stability constants have been determined by equations derived from Ilkovic equation.