Journal of Engineering and Applied Sciences
ISSN: Online 1818-7803ISSN: Print 1816-949x
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Potentiometric Study of the Complexing Ability of 2-Mono(Dihydroxyphosphonyl) Methyl 4-Nitro 6-Methyl Phenol (P2N4M6) and of 2-Mono(Dihydroxyphosphonyl) Methyl 4, 6-Dinitrophenol (P2N46) with Metal Cations Al(III), Cr(III) and Fe(III)
Fadila Djabi and Fatiha Benghanem
Page: 828-832 | Received 21 Sep 2022, Published online: 21 Sep 2022
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Abstract
The interaction of ligands 2-mono(dihydroxyphosphonyl) methyl 4-nitro 6-methyl phenol (P2N4M6) and of 2-mono(dihydroxyphosphonyl) methyl 4,6-dinitrophenol (P2N4.6) with 3 metal ions, Al(III) Cr(III) and Fe(III) was studied . By means of potentiometry, the stability constants of the complexes formed were calculated at 25.0 ± 0.1°C. The ionic strength was maintained at 0.1 M with an aqueous solution of NaClO4. Complexes of 1:1 metal to ligand ratio are formed and the logarithmic values of the stability constants of the model ML are: For P2N4M6: Al(III) = 7.99; Cr(III) = 6.30; Fe(III) = 6.70. For P2N4.6: Al(III) = 6.72; Cr(III) = 7.45; Fe(III) = 6.19. The stability of the 2 ligands is compared and a further comparison of the complexing ability with other ligands is attempted.
How to cite this article:
Fadila Djabi and Fatiha Benghanem . Potentiometric Study of the Complexing Ability of 2-Mono(Dihydroxyphosphonyl) Methyl 4-Nitro 6-Methyl Phenol (P2N4M6) and of 2-Mono(Dihydroxyphosphonyl) Methyl 4, 6-Dinitrophenol (P2N46) with Metal Cations Al(III), Cr(III) and Fe(III).
DOI: https://doi.org/10.36478/jeasci.2007.828.832
URL: https://www.makhillpublications.co/view-article/1816-949x/jeasci.2007.828.832