Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium

B. Myek; S. O. Idris; J. F. Iyun

doi:doi:10.11648/j.sjc.20170506.11

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Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium

B. Myek, S. O. Idris, J. F. Iyun

Published in Science Journal of Chemistry (Volume 5, Issue 6)

Received: 7 March 2017 Accepted: 18 March 2017 Published: 22 November 2017

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Abstract

The kinetics of the redox reaction between naphthol green B and hydrazine dihydrochloride has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm^-3(NaCl), [H⁺] = 1.0×10^-4 moldm^-3 (HCl) and T = 21±1°C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -d[NGB^3-]/dt=k₂[NGB^3-][N₂H₄.2HCl]. Change in hydrogen ion concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions inhibited the rate of the reaction. The redox reaction showed negative salt effect, with the rate decreasing with increase in ionic strength of the reaction medium. Results of the Michaelis–Menten’s plot show that an intermediate complex was not formed during the course of the reaction. The outersphere mechanism is proposed for this reaction.

Published in	Science Journal of Chemistry (Volume 5, Issue 6)
DOI	10.11648/j.sjc.20170506.11
Page(s)	76-79
Creative Commons	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), 2017. Published by Science Publishing Group

Keywords

Kinetic, Naphthol Green B, Redox, Hydrazine Dihydrochloride, Intermediate

References

[1]	Zhao, Q., Yuan, R., Chang, L. M., Chai, Y. Q., Zhong, X. (2004). A new amperometric glucose biosensor with naphthol green B as mediator. Chinesechem. let. Vol. 5, No. 2, pp 208–211.
[2]	Cao, Y. I., Jiang, X. M., Kareem, A., Dou, Z. H., Rakeman, M. A., Zhan, M. L., Dulong, G. R. (1994). Iodination of irrigation waters as a method of supplying iodine to a severally iodine deficient population in Xinjing, China. The lancet, (344): 107-109.
[3]	Mshelia, M. S., Iyun, J. F., Uzairu, A., Idris, S. (2010). Kinetics and mechanism of the oxidation of hydrazine dihydrochloride by aqueous iodine. J. Am. Sci. 6(9).
[4]	Ulrich, N., Amelie, Z. C., Karin, P., Siegfried, S. (2000). Reduction of aqueous silver nitrate by hydrazine dihydrochloride. J. Am. Chem. Soc. 16(23), pp 9087–9091.
[5]	Yusuf, U. F., J. F. Iyun and G. A. Ayoko, 2004. Oxidation of hypophosphorus acid by poly pyridineiron (III) complexes. Chem. Class. J. 118–122.
[6]	Mohammed, Y., Iyun, J. F., Idris, S. O. (2009). Kinetic approach to the mechanism of the redox reaction of malachite green and permanganate ion in aqueous acidic medium. Afr. J. Pureand A ppl. Chem, 3: 12, 269.
[7]	Rao, K. V., Rao, J. K., Sivaswaroop, P and Kumar, A. K (1987). Kinetic of stepwise oxidation of manganese (II) by S₂O₈^2- in phosphoric acid medium. Trans. Met. Chem., 12: 442–448.
[8]	Przystas, T. J. and Sutin, N. (1973). Kinetic studies of anion assisted outersphere electron transfer reactions. J. Am. Chem. Soc., 95, 5545. 23: 27-35.

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APA Style

B. Myek, S. O. Idris, J. F. Iyun. (2017). Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Science Journal of Chemistry, 5(6), 76-79. https://doi.org/10.11648/j.sjc.20170506.11

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ACS Style

B. Myek; S. O. Idris; J. F. Iyun. Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Sci. J. Chem. 2017, 5(6), 76-79. doi: 10.11648/j.sjc.20170506.11

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AMA Style

B. Myek, S. O. Idris, J. F. Iyun. Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Sci J Chem. 2017;5(6):76-79. doi: 10.11648/j.sjc.20170506.11

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@article{10.11648/j.sjc.20170506.11,
  author = {B. Myek and S. O. Idris and J. F. Iyun},
  title = {Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium},
  journal = {Science Journal of Chemistry},
  volume = {5},
  number = {6},
  pages = {76-79},
  doi = {10.11648/j.sjc.20170506.11},
  url = {https://doi.org/10.11648/j.sjc.20170506.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjc.20170506.11},
  abstract = {The kinetics of the redox reaction between naphthol green B and hydrazine dihydrochloride has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm-3(NaCl), [H+] = 1.0×10-4 moldm-3 (HCl) and T = 21±1°C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -d[NGB3-]/dt=k2[NGB3-][N2H4.2HCl]. Change in hydrogen ion concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions inhibited the rate of the reaction. The redox reaction showed negative salt effect, with the rate decreasing with increase in ionic strength of the reaction medium. Results of the Michaelis–Menten’s plot show that an intermediate complex was not formed during the course of the reaction. The outersphere mechanism is proposed for this reaction.},
 year = {2017}
}

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TY  - JOUR
T1  - Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium
AU  - B. Myek
AU  - S. O. Idris
AU  - J. F. Iyun
Y1  - 2017/11/22
PY  - 2017
N1  - https://doi.org/10.11648/j.sjc.20170506.11
DO  - 10.11648/j.sjc.20170506.11
T2  - Science Journal of Chemistry
JF  - Science Journal of Chemistry
JO  - Science Journal of Chemistry
SP  - 76
EP  - 79
PB  - Science Publishing Group
SN  - 2330-099X
UR  - https://doi.org/10.11648/j.sjc.20170506.11
AB  - The kinetics of the redox reaction between naphthol green B and hydrazine dihydrochloride has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm-3(NaCl), [H+] = 1.0×10-4 moldm-3 (HCl) and T = 21±1°C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -d[NGB3-]/dt=k2[NGB3-][N2H4.2HCl]. Change in hydrogen ion concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions inhibited the rate of the reaction. The redox reaction showed negative salt effect, with the rate decreasing with increase in ionic strength of the reaction medium. Results of the Michaelis–Menten’s plot show that an intermediate complex was not formed during the course of the reaction. The outersphere mechanism is proposed for this reaction.
VL  - 5
IS  - 6
ER  -

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Author Information

B. Myek

Department of Chemistry, Kaduna State University, Kaduna, Nigeria
S. O. Idris

Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria
J. F. Iyun

Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria

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APA Style

B. Myek, S. O. Idris, J. F. Iyun. (2017). Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Science Journal of Chemistry, 5(6), 76-79. https://doi.org/10.11648/j.sjc.20170506.11

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ACS Style

B. Myek; S. O. Idris; J. F. Iyun. Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Sci. J. Chem. 2017, 5(6), 76-79. doi: 10.11648/j.sjc.20170506.11

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AMA Style

B. Myek, S. O. Idris, J. F. Iyun. Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium. Sci J Chem. 2017;5(6):76-79. doi: 10.11648/j.sjc.20170506.11

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@article{10.11648/j.sjc.20170506.11,
  author = {B. Myek and S. O. Idris and J. F. Iyun},
  title = {Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium},
  journal = {Science Journal of Chemistry},
  volume = {5},
  number = {6},
  pages = {76-79},
  doi = {10.11648/j.sjc.20170506.11},
  url = {https://doi.org/10.11648/j.sjc.20170506.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjc.20170506.11},
  abstract = {The kinetics of the redox reaction between naphthol green B and hydrazine dihydrochloride has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm-3(NaCl), [H+] = 1.0×10-4 moldm-3 (HCl) and T = 21±1°C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -d[NGB3-]/dt=k2[NGB3-][N2H4.2HCl]. Change in hydrogen ion concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions inhibited the rate of the reaction. The redox reaction showed negative salt effect, with the rate decreasing with increase in ionic strength of the reaction medium. Results of the Michaelis–Menten’s plot show that an intermediate complex was not formed during the course of the reaction. The outersphere mechanism is proposed for this reaction.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Kinetics and Mechanism of the Redox Reaction of Naphthol Green B with Hydrazine Dihydrochloride in Aqueous Acidic Medium
AU  - B. Myek
AU  - S. O. Idris
AU  - J. F. Iyun
Y1  - 2017/11/22
PY  - 2017
N1  - https://doi.org/10.11648/j.sjc.20170506.11
DO  - 10.11648/j.sjc.20170506.11
T2  - Science Journal of Chemistry
JF  - Science Journal of Chemistry
JO  - Science Journal of Chemistry
SP  - 76
EP  - 79
PB  - Science Publishing Group
SN  - 2330-099X
UR  - https://doi.org/10.11648/j.sjc.20170506.11
AB  - The kinetics of the redox reaction between naphthol green B and hydrazine dihydrochloride has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm-3(NaCl), [H+] = 1.0×10-4 moldm-3 (HCl) and T = 21±1°C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -d[NGB3-]/dt=k2[NGB3-][N2H4.2HCl]. Change in hydrogen ion concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions inhibited the rate of the reaction. The redox reaction showed negative salt effect, with the rate decreasing with increase in ionic strength of the reaction medium. Results of the Michaelis–Menten’s plot show that an intermediate complex was not formed during the course of the reaction. The outersphere mechanism is proposed for this reaction.
VL  - 5
IS  - 6
ER  -

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