Kinetics of the oxidative hydroxylation of tetraphosphorus in the presence of copper(II) chloride modified by humic (fulvo-) acid

  • Zhaksyntay Kairbekov al-Farabi Kazakh National University
  • Dina Akbayeva al-Farabi Kazakh National University
  • Zh. Eshova al-Farabi Kazakh National University
DOI: https://doi.org/10.15328/chemb_2012_470-74
Keywords: white phosphorus, oxidation, oxygen, humic (fulvo-) acid, hydroxylation, phosphoric acid, kinetics, optimum conditions

Abstract

It was established that in mild conditions (50-70 oC, РО2= 1 atm) white phosphorus effectively is oxidized by oxygen in water-toluene solutions of copper(II) chloride modified by humic (fulvo-) acid to give mainly phosphoric acid. Humic (fulvo-) acid was extracted from brown coal of domestic deposit Kiyakty. For determination of optimum parameters of fulvo-acid extraction the laboratory experiments were carried out using the method of experiment planning. The kinetics, intermediate and final products, optimum conditions of new catalytic reaction of P4 oxidation by oxygen in water medium were defined by kinetics, volumometry, redox-potentiometry, 31Р{1Н} NMR spectroscopy and  titration. 

References

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Published
2012-12-04
How to Cite
Kairbekov, Z., Akbayeva, D., & Eshova, Z. (2012). Kinetics of the oxidative hydroxylation of tetraphosphorus in the presence of copper(II) chloride modified by humic (fulvo-) acid. Chemical Bulletin of Kazakh National University, 68(4), 70-74. https://doi.org/https://doi.org/10.15328/chemb_2012_470-74
Issue
Vol 68 No 4 (2012): Chemical Bulletin of Kazakh National University
Section
Other Papers
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