Polarographic Study of the Mixed-Coordinated System Cadmium-Ii Valine Alanine
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1991Subject/s
Abstract
The mixed-coordinated system Cd(II)-valinate ion-alaninate ion in aqueous medium has been studied polarographically. The ionic strength has been maintained constant at I = 1,0 M adjusted with NaClO4. The stabilization of the coordinated species Cd(V-) (A-)], Cd(V-) (A-)2]- and Cd(V-)2(A-)]-, has been established, with stability constants .beta.11 = 4,9 .times. 107, .beta.12 = 1,8 .times. 1010 and .beta.21 = 1,2 .times. 1010, respectively.
The mixed-coordinated system Cd(II)-valinate ion-alaninate ion in aqueous medium has been studied polarographically. The ionic strength has been maintained constant at I = 1,0 M adjusted with NaClO4. The stabilization of the coordinated species Cd(V-) (A-)], Cd(V-) (A-)2]- and Cd(V-)2(A-)]-, has been established, with stability constants .beta.11 = 4,9 .times. 107, .beta.12 = 1,8 .times. 1010 and .beta.21 = 1,2 .times. 1010, respectively.
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