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Journals / Turkish Journal of Chemistry / 2005 / Cilt: 29 - Sayı: 6

Investigation of Electron Transfer Reaction Between Diphenylbenzidine and Ascorbic Acid

Iftikhar Imam NAQVI
Abida PERVEEN
Pages
627–634
Publication Date
2005-06-01
DOI
—
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

The following rate law is recommended: Rate = {k1 [C12H10N2C12H10] + k2K [C12H10N2C12H10][H+]}[C6H8O6] where k1 and k2 have the values of 2.0 \times 104 dm3mol-1 s-1 and 6.58 \times 103 dm3.mol-1.s-1 , respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The kinetics of the reduction of diphenylbenzidine by ascorbic acid were investigated in the pH range 3.5 to 5.0.
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Key Findings & Data:Diphenylbenzidine was prepared by the oxidation of diphenylamine with cerium(IV) sulfate tetra hydrate.
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Conclusion & Impact:The following rate law is recommended: Rate = {k1 [C12H10N2C12H10] + k2K [C12H10N2C12H10][H+]}[C6H8O6] where k1 and k2 have the values of 2.0 \times 104 dm3mol-1 s-1 and 6.58 \times 103 dm3.mol-1.s-1 , respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Turk. J. Chem. · (2005) · 627-634. Full text: pdf Other articles published in the same issue: Turk. J. Chem.

Abstract

The kinetics of the reduction of diphenylbenzidine by ascorbic acid were investigated in the pH range 3.5 to 5.0. Diphenylbenzidine was prepared by the oxidation of diphenylamine with cerium(IV) sulfate tetra hydrate. The order of the reaction with respect to each of the reactants, i.e ascorbic acid (ASC), diphenylbenzidine (DPB) and H+ ,was found to be first. The following rate law is recommended: Rate = {k1 [C12H10N2C12H10] + k2K [C12H10N2C12H10][H+]}[C6H8O6] where k1 and k2 have the values of 2.0 \times 104 dm3mol-1 s-1 and 6.58 \times 103 dm3.mol-1.s-1 , respectively. K is the protonation constant of DPB, having a value of 476 dm3 mol-1. A possible mechanism for the reaction is also proposed.

Özet

The kinetics of the reduction of diphenylbenzidine by ascorbic acid were investigated in the pH range 3.5 to 5.0. Diphenylbenzidine was prepared by the oxidation of diphenylamine with cerium(IV) sulfate tetra hydrate. The order of the reaction with respect to each of the reactants, i.e ascorbic acid (ASC), diphenylbenzidine (DPB) and H+ ,was found to be first. The following rate law is recommended: Rate = {k1 [C12H10N2C12H10] + k2K [C12H10N2C12H10][H+]}[C6H8O6] where k1 and k2 have the values of 2.0 \times 104 dm3mol-1 s-1 and 6.58 \times 103 dm3.mol-1.s-1 , respectively. K is the protonation constant of DPB, having a value of 476 dm3 mol-1. A possible mechanism for the reaction is also proposed.

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Cite This Article

NAQVI, I. I., PERVEEN, A. (2005). Investigation of Electron Transfer Reaction Between Diphenylbenzidine and Ascorbic Acid. Turkish Journal of Chemistry, Cilt: 29 - Sayı: 6, 627–634. https://ajindex.com/articles/227800

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References (11)

  1. N.H. William and J.K. Yandell, Aust. J. Chem. 35, 1133(1982).
  2. S.N. Gershoff., Am. J. Clin. Nut. 51, 313 (1993).
  3. A. Perveen, M.A. Farrukh and I.I. Naqvi, J. Indian. Chem. Soc. 82, 49-51 (2005). K. Fukuzawa; W. Ikebata; and K. Sohmi, J. Nutr. Sci. Vitaminol. 2, 39 (1993).
  4. N.V. Gorbunov, A.N. Osipov, M.A. Sweetland, B. W/Day, N.M. Elsayed and V.E. Kagan, Res. Commun., 835-41 (1996).
  5. B.D. Mckersie, F.A. Hoekstra and L.C. Krieg, Biochim. Biophys. Acta. 1030, 119 (1990).
  6. B. Halliwell, Free Rad. Res. 25, 439-54 (1996).
  7. D.Yu.Marchenko, E.I.Morosanova, N.M.Kuzmin, Yu.A.Zolotov, J. Anal. Chem. 2, 58 (1997). http://www.people.virginia.edu/ “The University of Virginia Charlottesville” VA22908 USA (2005).
  8. E. Pelizzetti, E. Mentasti and E. Pramauro, Inorg. Chem. 15, 2898 (1976).
  9. J. Xu and R.B. Jordon, Inorg. Chem. 29, 4180-85 (1990).
  10. L.J.A. Martins and S.B de Costa, J. Chem. Edu. 65, 176-80 (1988).
  11. G.H. Jeffery, J. Bassett, J. Mendham and R.C. Denney, “Vogel’s Text Book of Quantitative Inorganic Chemical Analysis ”5thed. Bath Press Ltd, 292-94(1989).