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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
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.