Azocalixarene. 5: p-Substituted Azocalix4arenes as Extractants for Dichromate Anions

  • Hasalettin Deligz Pamukkale University, Department of Chemistry, 20017, Denizli, Turkey
  • Mine Sulak Ak Pamukkale University, Department of Chemistry, 20017, Denizli, Turkey
  • Shahabuddin Memon National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080-Pakistan
  • Mustafa Yilmaz Seluk University, Department of Chemistry, 42079, Konya, Turkey

Abstract

In this article, chromium(VI) extraction properties of two azocalix4arene based receptors (L4 and L6) are reported. A preliminary evaluation of the binding efficiencies of p-substituted azocalix4arene derivatives L4 and L6 was carried out by solvent extraction of Na-dichromate from aqueous solution into dichloromethane at different pH. It was observed that the new compounds are effective extractants for transferring the HCr2O7-/Cr2O72- anions at low pH. The binding ability of these compounds toward HCr2O7-/Cr2O72- anions depends upon Na+ extraction. 

Published
Jun 2, 2008
How to Cite
DELIGZ, Hasalettin et al. Azocalixarene. 5: p-Substituted Azocalix4arenes as Extractants for Dichromate Anions. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 9, n. 1, p. 5, june 2008. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/133>. Date accessed: 21 apr. 2018.