Determination of dissociation constants for some pyrogallol azo derivatives and stability constants of their complexes with rare-earth metals |
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Authors: | S. R. Gadzhieva F. E. Guseinov F. M. Chyragov |
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Affiliation: | (1) Baku State University, ul. Khalilova 23, Baku, 1148, Azerbaijan |
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Abstract: | The dissociation constants of some haloazo derivatives of pyrogallol and the stability constants of their complexes with rare-earth metals (La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) are determined by potentiometric titration in aqueous ethanol (3: 7). A correlation between the dissociation constants of the reagents and the stability constants of their complexes is found. |
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