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Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP)

Received: 8 July 2022     Accepted: 26 July 2022     Published: 5 August 2022
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Abstract

The role of some common acids CH3COOH, HCl, HNO3, H3PO4 and H2SO4 in the multi-metal distribution/extraction of Cadmium, Nickel, Lead and Iron from aqueous media buffered to either pH 4.75 or 7.5 using the ligand 4´4-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-yl-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) H2BuEtP alone and in the presence of 1-(3-hydroxy-5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) butan-1-one (HBuP) was studied using solvent-solvent extraction method. An equilibration time of 60 minutes was used. The extraction raffinates were analysed for Cadmium, Nickel and Lead with an Atomic Absorption Spectrophotometer (AAS) while Iron was colorimetrically determined with 1,10-phenanthroline and absorbances compared with standards and extraction parameters; distribution ratios, percentage % E and number of batches n needed to achieve 99.9% extraction of the four metals calculated. The distribution ratios of the metals were statistically analysed for differences between the two buffers, organic extractants and the acids. All the acids showed good potentials in the selective separation of Iron from Cadmium, Nickel and Lead. The conditions for the use of the different acids for the selective separations of Cadmium/Iron from Nickel/Lead, Nickel/Iron from Cadmium/Lead and Lead/Iron from Cadmium/Nickel were established with calculated number of batches needed to obtain 99.9% extractions of the metals. Only 0.01 M – 0.05 M H3PO4 showed good potentials in the mult-imetal extraction of the four metals from an aqueous medium containing the four metals and buffered to pH 7.5 using the mixed ligands H2BuEtP/HBuP organic phase and 99.9% extraction of the four metals calculated to be achievable after 9 batches of extractions with fresh organic phase. The synergic effect of the second ligand HBuP was observed in only a few cases.

Published in World Journal of Applied Chemistry (Volume 7, Issue 3)
DOI 10.11648/j.wjac.20220703.11
Page(s) 54-72
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Distribution Ratio, Multimetal, Acids, Buffers and Ligands

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    Godwin Jackson, Bennett Victoria. (2022). Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP). World Journal of Applied Chemistry, 7(3), 54-72. https://doi.org/10.11648/j.wjac.20220703.11

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    Godwin Jackson; Bennett Victoria. Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP). World J. Appl. Chem. 2022, 7(3), 54-72. doi: 10.11648/j.wjac.20220703.11

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    Godwin Jackson, Bennett Victoria. Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP). World J Appl Chem. 2022;7(3):54-72. doi: 10.11648/j.wjac.20220703.11

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  • @article{10.11648/j.wjac.20220703.11,
      author = {Godwin Jackson and Bennett Victoria},
      title = {Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP)},
      journal = {World Journal of Applied Chemistry},
      volume = {7},
      number = {3},
      pages = {54-72},
      doi = {10.11648/j.wjac.20220703.11},
      url = {https://doi.org/10.11648/j.wjac.20220703.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20220703.11},
      abstract = {The role of some common acids CH3COOH, HCl, HNO3, H3PO4 and H2SO4 in the multi-metal distribution/extraction of Cadmium, Nickel, Lead and Iron from aqueous media buffered to either pH 4.75 or 7.5 using the ligand 4´4-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-yl-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) H2BuEtP alone and in the presence of 1-(3-hydroxy-5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) butan-1-one (HBuP) was studied using solvent-solvent extraction method. An equilibration time of 60 minutes was used. The extraction raffinates were analysed for Cadmium, Nickel and Lead with an Atomic Absorption Spectrophotometer (AAS) while Iron was colorimetrically determined with 1,10-phenanthroline and absorbances compared with standards and extraction parameters; distribution ratios, percentage % E and number of batches n needed to achieve 99.9% extraction of the four metals calculated. The distribution ratios of the metals were statistically analysed for differences between the two buffers, organic extractants and the acids. All the acids showed good potentials in the selective separation of Iron from Cadmium, Nickel and Lead. The conditions for the use of the different acids for the selective separations of Cadmium/Iron from Nickel/Lead, Nickel/Iron from Cadmium/Lead and Lead/Iron from Cadmium/Nickel were established with calculated number of batches needed to obtain 99.9% extractions of the metals. Only 0.01 M – 0.05 M H3PO4 showed good potentials in the mult-imetal extraction of the four metals from an aqueous medium containing the four metals and buffered to pH 7.5 using the mixed ligands H2BuEtP/HBuP organic phase and 99.9% extraction of the four metals calculated to be achievable after 9 batches of extractions with fresh organic phase. The synergic effect of the second ligand HBuP was observed in only a few cases.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Role of Acids in Multimetal Distributions Using 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-YL-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP)
    AU  - Godwin Jackson
    AU  - Bennett Victoria
    Y1  - 2022/08/05
    PY  - 2022
    N1  - https://doi.org/10.11648/j.wjac.20220703.11
    DO  - 10.11648/j.wjac.20220703.11
    T2  - World Journal of Applied Chemistry
    JF  - World Journal of Applied Chemistry
    JO  - World Journal of Applied Chemistry
    SP  - 54
    EP  - 72
    PB  - Science Publishing Group
    SN  - 2637-5982
    UR  - https://doi.org/10.11648/j.wjac.20220703.11
    AB  - The role of some common acids CH3COOH, HCl, HNO3, H3PO4 and H2SO4 in the multi-metal distribution/extraction of Cadmium, Nickel, Lead and Iron from aqueous media buffered to either pH 4.75 or 7.5 using the ligand 4´4-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-yl-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) H2BuEtP alone and in the presence of 1-(3-hydroxy-5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) butan-1-one (HBuP) was studied using solvent-solvent extraction method. An equilibration time of 60 minutes was used. The extraction raffinates were analysed for Cadmium, Nickel and Lead with an Atomic Absorption Spectrophotometer (AAS) while Iron was colorimetrically determined with 1,10-phenanthroline and absorbances compared with standards and extraction parameters; distribution ratios, percentage % E and number of batches n needed to achieve 99.9% extraction of the four metals calculated. The distribution ratios of the metals were statistically analysed for differences between the two buffers, organic extractants and the acids. All the acids showed good potentials in the selective separation of Iron from Cadmium, Nickel and Lead. The conditions for the use of the different acids for the selective separations of Cadmium/Iron from Nickel/Lead, Nickel/Iron from Cadmium/Lead and Lead/Iron from Cadmium/Nickel were established with calculated number of batches needed to obtain 99.9% extractions of the metals. Only 0.01 M – 0.05 M H3PO4 showed good potentials in the mult-imetal extraction of the four metals from an aqueous medium containing the four metals and buffered to pH 7.5 using the mixed ligands H2BuEtP/HBuP organic phase and 99.9% extraction of the four metals calculated to be achievable after 9 batches of extractions with fresh organic phase. The synergic effect of the second ligand HBuP was observed in only a few cases.
    VL  - 7
    IS  - 3
    ER  - 

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Author Information
  • Department of Chemical Sciences, Niger Delta University, Wilberforce Island, Nigeria

  • Department of Chemical Sciences, University of Africa, Toru-Orua, Nigeria

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