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Cathodic Action of Uranyl‐5‐Sulfosalicylate Complexes at Dropping Mercury Electrode
Author(s) -
Chen ShouNen,
Gi HungJang,
Li DingTzay
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000018
Subject(s) - chemistry , uranyl , polarography , chelation , inorganic chemistry , stability constants of complexes , glass electrode , mercury (programming language) , titration , ion , electrode , electrochemistry , reference electrode , organic chemistry , computer science , programming language
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, UO 2 (HA)2 2− , is predominant. At pH 6.0. the complex species. UO 2 (A) 2 4 mainly exists. The chelate species. UO 2 (HA) 2 2− , and UO 2 (A) 2 4 , co‐exist between pH 4.8‐6.0. The diffusion coefficients and stability constants have been determined by equations derived from Ilkovic equation.