Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Thiazolylazo)resorcinol and Monotetrazolium Salt
| Autor: | Petya Racheva, Kirila T. Stojnova, Vidka Divarova, Vanya Lekova |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Liquid-Liquid Extraction
Analytical chemistry Tetrazolium Salts Resorcinol 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences Chloride lcsh:Chemistry chemistry.chemical_compound Ultraviolet visible spectroscopy Liquid–liquid extraction ion-associated chelate complex formation medicine Equilibrium constant General Environmental Science Extraction (chemistry) extraction equilibria Cobalt Resorcinols UV-Vis spectroscopy 0104 chemical sciences chemistry lcsh:QD1-999 Reagent General Earth and Planetary Sciences Ternary operation Azo Compounds Nuclear chemistry medicine.drug |
| Zdroj: | Acta Chimica Slovenica, Vol 63, Iss 1, Pp 97-103 (2015) |
| ISSN: | 1580-3155 1318-0207 |
| Popis: | The ion-associated complex formed between anionic chelate of Co(II)-4-(2-Thiazolylazo)resorcinol (TAR) with the monotetrazolium cation of 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium chloride (INT) in the liquid-liquid extraction system Co(II)-TAR-INT-H(2)O-CHCl(3) was studied by the spectrophotometric method. The optimum extraction conditions of Co(II) were found. The extraction equilibria were studied. The equilibrium constants, the recovery factor and some analytical characteristics were calculated. The validity of Beer's law was checked. The molar ratio of the components in the ternary ion-associated complex Co(II)-TAR-INT was determined. The general formula of the complex was suggested. The effect of various foreign ions and reagents on the process of complex formation in the liquid-liquid extraction system was studied. |
| Databáze: | OpenAIRE |
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