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Journal

2012 | 10 | 4 | 1262-1270

Article title

Extraction-spectrophotometric investigations on two ternary ion-association complexes of gallium(III)

Content

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EN

Abstracts

EN
Complex formation and liquid-liquid extraction were studied in systems containing Ga(III), azoderivative of resorcinol {4-(2-pyridylazo)resorcinol (PAR) or 4-(2-thiazolylazo)resorcinol (TAR)}, 2,3,5-triphenyltetrazolium chloride (TTC), water and chloroform. The optimum conditions w.r.t. pH, extraction time, concentration of ADR and concentration of TTC for the extraction of Ga(III) as an ion-associate complex were found.. The composition of the extracted complexes, (TT+)[Ga(PAR)2] (I), (TT+)[Ga(TAR)2] (II) or (TT+)2[Ga(OH)(TAR)2] (III), and the constants of association (β) between 2,3,5-triphenyltetrazolium cation (TT+) with corresponding anionic chelates were established by several methods. The constants of distribution (KD) and extraction (Kex) of the principal species I and III were determined as well. The apparent molar absorptivities of the chloroform extract at the optimum extraction-spectrophotometric conditions were ɛ′510=9.5×104 L mol−1 cm−1 (I) and ɛ′530=4.6×104 L mol−1 cm−1 (III). The validity of Beer’s law was checked and analytical characteristics that were calculated are reported herein. [...]

Publisher

Journal

Year

Volume

10

Issue

4

Pages

1262-1270

Physical description

Dates

published
1 - 8 - 2012
online
29 - 5 - 2012

Contributors

  • Department of General and Inorganic Chemistry, University of Plovdiv, 4000, Plovdiv, Bulgaria
author
  • Department of General and Inorganic Chemistry, University of Plovdiv, 4000, Plovdiv, Bulgaria
  • Department of General and Inorganic Chemistry, University of Plovdiv, 4000, Plovdiv, Bulgaria
author
  • Department of General and Inorganic Chemistry, University of Plovdiv, 4000, Plovdiv, Bulgaria
  • Department of General and Inorganic Chemistry, University of Plovdiv, 4000, Plovdiv, Bulgaria

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11532-012-0045-y
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