International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW

International Journal of Chemical Studies

Vol. 4, Issue 5 (2016)
Extraction concentrating of tungsten (VI) in complex form with 2-Hydroxy-5-Tret-Butylphenol-4´-Methyl-Azobenzene and Its determination by atomic-absorption spectrometry


Author(s): AM Pashajanov

Abstract: Complexation of tungsten (VI) with azo-compound synthesized with para-tret-butylphenol (2-hydroxy-5-tret-butylphenol-4´-methyl-azobenzene) was studied by using spectrophotometric method. Spectrophotometric characteristics of the complex were calculated, composition of the complex was determined by different techniques. Stability constant of the complex (lgKуст=4.2•1010), as well as equilibrium constant of the complexation reaction (3.2•104) were calculated by using Komar method. Molar absorption coefficient equals to (2.1±0.1).104. Calibration curve is linear at concentrations of tungsten 1.0–10 mkg/ml.

Pages: 49-51  |  1095 Views  18 Downloads

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How to cite this article:
AM Pashajanov. Extraction concentrating of tungsten (VI) in complex form with 2-Hydroxy-5-Tret-Butylphenol-4´-Methyl-Azobenzene and Its determination by atomic-absorption spectrometry. Int J Chem Stud 2016;4(5):49-51.
International Journal of Chemical Studies