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Determination of dissociation constants for some pyrogallol azo derivatives and stability constants of their complexes with rare-earth metals

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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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Authors and Affiliations

  1. Baku State University, ul. Khalilova 23, Baku, 1148, Azerbaijan

    S. R. Gadzhieva, F. E. Guseinov & F. M. Chyragov

Authors
  1. S. R. Gadzhieva
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  2. F. E. Guseinov
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  3. F. M. Chyragov
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Additional information

Original Russian Text © S.R. Gadzhieva, F.E. Guseinov, F.M. Chyragov, 2006, published in Zhurnal Neorganicheskoi Khimii, 2006, Vol. 51, No. 7, pp. 1226–1227.

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Gadzhieva, S.R., Guseinov, F.E. & Chyragov, F.M. Determination of dissociation constants for some pyrogallol azo derivatives and stability constants of their complexes with rare-earth metals. Russ. J. Inorg. Chem. 51, 1146–1148 (2006). https://doi.org/10.1134/S0036023606070205

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  • DOI: https://doi.org/10.1134/S0036023606070205

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