Metal(II) Complexes of Ethylenediaminemonoacetic Acid (EDMA). Polarographic Studies of Cadmium(II) and Lead(II)-EDMA Complexes
- 1 February 1970
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 43 (2) , 409-414
- https://doi.org/10.1246/bcsj.43.409
Abstract
In the present paper, the d.c. polarographic behavior of cadmium(II) and lead(II) ions in ethylenediaminemonoacetate (EDMA) solutions was studied systematically. Since these metal(II) ions in an EDMA solution behave reversibly in a polarographic electrolysis, the compositions and the stability constants of cadmium(II)- and lead(II)-EDMA complexes could be estimated successfully from the shift of the half-wave potential of these metal(II) ions due to the complex formation with EDMA. The cadmium (II) ion was found to form complexes of 1-to-1 and 1-to-2 compositions with EDMA, and the electrode reaction mechanism was established to be:Keywords
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