The kinetics of oxidation of inositol (INOS) by permanganate ion in both perchloric and sulfuric acids solutions was studied using a spectrophotometric technique at a constant ionic strength of 1.0 mol dm-3 and at 25°C. In both acids, the reactions showed a first order dependence with respect to [permanganate], whereas the orders with respect to [INOS] were found to be less than unity. The effect of acids concentrations suggests that the reactions were acid-catalyzed with fractional-second order kinetics in [H+]. Variation of either ionic strength or dielectric constant of the medium had no effect significantly on the oxidation rates. The reactions mechanism adequately describing the kinetic results was proposed. In both acids, the main oxidation products of inositol were identified by spectral and chemical tools as the corresponding monoketone derivative, namely inosose. Under comparable experimental conditions, the oxidation rate in sulfuric acid was approximately three times higher than that in perchloric acid. Regarding to the second order rate constants of these reactions, the activation parameters have been evaluated and discussed.
| Published in | American Journal of Chemical Engineering (Volume 4, Issue 5) |
| DOI | 10.11648/j.ajche.20160405.12 |
| Page(s) | 98-104 |
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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. |
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Inositol, Oxidation, Acid, Permanganate, Kinetics, Mechanism
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APA Style
Ahmed Fawzy, Ishaq A. Zaafarany, Hatem M. Altass, Moataz H. Morad, Jabir Alfahemi. (2016). Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions. American Journal of Chemical Engineering, 4(5), 98-104. https://doi.org/10.11648/j.ajche.20160405.12
ACS Style
Ahmed Fawzy; Ishaq A. Zaafarany; Hatem M. Altass; Moataz H. Morad; Jabir Alfahemi. Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions. Am. J. Chem. Eng. 2016, 4(5), 98-104. doi: 10.11648/j.ajche.20160405.12
AMA Style
Ahmed Fawzy, Ishaq A. Zaafarany, Hatem M. Altass, Moataz H. Morad, Jabir Alfahemi. Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions. Am J Chem Eng. 2016;4(5):98-104. doi: 10.11648/j.ajche.20160405.12
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Download@article{10.11648/j.ajche.20160405.12,
author = {Ahmed Fawzy and Ishaq A. Zaafarany and Hatem M. Altass and Moataz H. Morad and Jabir Alfahemi},
title = {Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions},
journal = {American Journal of Chemical Engineering},
volume = {4},
number = {5},
pages = {98-104},
doi = {10.11648/j.ajche.20160405.12},
url = {https://doi.org/10.11648/j.ajche.20160405.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20160405.12},
abstract = {The kinetics of oxidation of inositol (INOS) by permanganate ion in both perchloric and sulfuric acids solutions was studied using a spectrophotometric technique at a constant ionic strength of 1.0 mol dm-3 and at 25°C. In both acids, the reactions showed a first order dependence with respect to [permanganate], whereas the orders with respect to [INOS] were found to be less than unity. The effect of acids concentrations suggests that the reactions were acid-catalyzed with fractional-second order kinetics in [H+]. Variation of either ionic strength or dielectric constant of the medium had no effect significantly on the oxidation rates. The reactions mechanism adequately describing the kinetic results was proposed. In both acids, the main oxidation products of inositol were identified by spectral and chemical tools as the corresponding monoketone derivative, namely inosose. Under comparable experimental conditions, the oxidation rate in sulfuric acid was approximately three times higher than that in perchloric acid. Regarding to the second order rate constants of these reactions, the activation parameters have been evaluated and discussed.},
year = {2016}
}
TY - JOUR T1 - Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions AU - Ahmed Fawzy AU - Ishaq A. Zaafarany AU - Hatem M. Altass AU - Moataz H. Morad AU - Jabir Alfahemi Y1 - 2016/09/24 PY - 2016 N1 - https://doi.org/10.11648/j.ajche.20160405.12 DO - 10.11648/j.ajche.20160405.12 T2 - American Journal of Chemical Engineering JF - American Journal of Chemical Engineering JO - American Journal of Chemical Engineering SP - 98 EP - 104 PB - Science Publishing Group SN - 2330-8613 UR - https://doi.org/10.11648/j.ajche.20160405.12 AB - The kinetics of oxidation of inositol (INOS) by permanganate ion in both perchloric and sulfuric acids solutions was studied using a spectrophotometric technique at a constant ionic strength of 1.0 mol dm-3 and at 25°C. In both acids, the reactions showed a first order dependence with respect to [permanganate], whereas the orders with respect to [INOS] were found to be less than unity. The effect of acids concentrations suggests that the reactions were acid-catalyzed with fractional-second order kinetics in [H+]. Variation of either ionic strength or dielectric constant of the medium had no effect significantly on the oxidation rates. The reactions mechanism adequately describing the kinetic results was proposed. In both acids, the main oxidation products of inositol were identified by spectral and chemical tools as the corresponding monoketone derivative, namely inosose. Under comparable experimental conditions, the oxidation rate in sulfuric acid was approximately three times higher than that in perchloric acid. Regarding to the second order rate constants of these reactions, the activation parameters have been evaluated and discussed. VL - 4 IS - 5 ER -
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