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Voltammetric study of cadmium complexation in halogenide mixtures of high ionic strength
Author(s) -
Zelić Marina,
Branica Marko
Publication year - 1992
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140040706
Subject(s) - chemistry , iodide , ionic strength , bromide , polarography , inorganic chemistry , cadmium , chloride , halide , ionic bonding , mercury (programming language) , adsorption , ion , dropping mercury electrode , electrochemistry , electrode , organic chemistry , aqueous solution , computer science , programming language
Cadmium complexation in chloride‐bromide and chloride‐iodide mixtures of a high ionic strength (I = 4 mol/L) was studied by polarographic/voltammetric methods. In the first case, statistically expected formation constants of mixed‐ligand complexes were confirmed. The presence of iodide ions, however, makes interpretation of the experimental data more difficult because the electrode process becomes complex. In addition to CdI 2 , which is a well‐known surface‐active species, CdCl a I 2 a− seems to be adsorbed at the mercury surface.