LIQUID-LIQUID SOLVENT EXTRACTION OF FE (III) USING 1, 5-DIMETHYL- 2-PHENYL-4-[(E)-(2,3,4-TRIHYDROXYLPHENYL)DIAZENYL]-1,2-DIHYDRO-3H-PYRAZOL-3-ONE.

Authors

  • I.J. Opara
  • P.O. Ukoha
  • N.R. Ekere Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Nigeria

Abstract

The work reports the synthesis and use of an azo ligand, 1,5-dimethyl- 2- phenyl-4-[(E)-(2,3,4-trihydroxylphenyl) diazenyl]- 1,2-dihydro-3H-pyrazol-3-one (H3L) in solvent extraction studies of its Iron (III) complex. Extraction studies at pH range 1-13, indicates that quantitative extraction of Fe (III) using 8.0×10-3   % H3L/CH2Cl2 is observed at pH 6. Fe(III) was quantitatively extracted at pH 6 up to 98.75%  as well as  in 0.001 M HClO4 up to 96.25% within five minutes. Extraction up to 96.25 % was observed with 10-3 MHClO4 and it was observed that as the concentration of various mineral acids increases the amount extracted decreases. 10-3 M KClO4 and Na2SO4 proved to be good salting out agents for the extraction of Fe (III). The ligand has potentials for use in large scale environmental clean-up of iron overload and other analytical determinations of Iron (III) ions. Keywords:  Iron (III), liquid-liquid, extraction, chelation, H3L, synthesis, ligand, spectrophotometry

Downloads

Published

2017-02-14

How to Cite

Opara, I., Ukoha, P., & Ekere, N. (2017). LIQUID-LIQUID SOLVENT EXTRACTION OF FE (III) USING 1, 5-DIMETHYL- 2-PHENYL-4-[(E)-(2,3,4-TRIHYDROXYLPHENYL)DIAZENYL]-1,2-DIHYDRO-3H-PYRAZOL-3-ONE. Journal of Chemical Society of Nigeria, 41(2). Retrieved from http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/83

Issue

Vol. 41 No. 2 (2016)

Section

Articles

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution (CC-BY) 4.0 License that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.