European Journal of Chemistry 2012, 3(1), 112-118 | doi: https://doi.org/10.5155/eurjchem.3.1.112-118.532 | Get rights and content

Issue cover





  Open Access OPEN ACCESS | Open Access PEER-REVIEWED | RESEARCH ARTICLE | DOWNLOAD PDF | VIEW FULL-TEXT PDF | TOTAL VIEWS

Oxidative decolorization of carmosine with acidic chloramine-T: Spectrophotometric, kinetic and mechanistic chemistry


Jayachamarajapura Pranesh Shubha (1,*) , Puttaswamy Puttaswamy (2)

(1) Department of Chemistry, Don Bosco Institute of Technology, Kumbalagodu, Bangalore, 560060, India
(2) Department of Chemistry, Bangalore University, Central College Campus, Bangalore, 560001, India
(*) Corresponding Author

Received: 23 Sep 2011 | Revised: 13 Nov 2011 | Accepted: 21 Nov 2011 | Published: 31 Mar 2012 | Issue Date: March 2012

Abstract


Carmosine is mainly used as a colorant in food industries. The oxidative decolorization of this dye is of greater significance and understanding of its kinetic and mechanistic aspects in redox reactions is important. Chloramine-T bears diverse chemical properties and has been exploited as oxidant for a variety of substrates. It is commercially available, inexpensive, non toxic, water tolerant and easy to handle. A systematic kinetic study of the oxidation of carmosine with acidic chloramine-T (CAT: TsNClNa here Ts = CH3C6H4SO2-) has been carried out in order to explore the mechanistic aspects of this redox system. UV-Visible spectrophotometry is used to monitor the reaction. Optimum conditions for the oxidative decolorization of carmosine with CAT were established. The kinetic results revealed that the reaction rate exhibits a first-order dependence each on [CAT]o and [carmosine]o and less than unit order dependence on [H+]. The reaction rate was examined for the effects of (a) p-toluenesulfonamide, (b) halide ions, (c) ionic strength, (d) dielectric permittivity and (e) solvent isotope. The reaction was studied at different temperatures and the activation parameters have been deduced. Oxidation products were characterized. Test for free radicals was found to be negative. The derived rate law based on the proposed mechanism is in complete agreement with the observed kinetic data.

3_1_112_118_800


Keywords


Azo dye; Carmosine; Acid medium; Chloramine-T; Decolorization; Oxidation-kinetics

Full Text:

PDF
PDF    Open Access

DOI: 10.5155/eurjchem.3.1.112-118.532

Links for Article


| | | | | | |

| | | | | | |

| | |

Related Articles




Article Metrics

icon graph This Abstract was viewed 754 times | icon graph PDF Article downloaded 328 times


References


[1]. Zollinger, H; Colour chemistry: Synthesis, properties and applications of organic dyes and pigments, New York, VCH, 1981.

[2]. Perkowski, J.; Ledakowicz, S. Fibres Text East Eur. 2002, 38(3), 72-77.

[3]. Waters, B. D.; Colour in Dyehouse Effluent, Cooper, P. Ed. Society of Dyers and Colourists, Bradford, 1995.

[4]. Pearce, C. I.; Lloyd, J. R.; Guthrie, J. T. Dyes Pigments 2003, 58, 179-196.
http://dx.doi.org/10.1016/S0143-7208(03)00064-0

[5]. Umbuzeiro, G. D. A.; Freeman, H. S.; Warren, S. H.; De Oliveira, D. P.; Terao, Y.; Watanabe, T.; Claxton, L. D. Chemosphere 2005, 60, 55-64.
http://dx.doi.org/10.1016/j.chemosphere.2004.11.100
PMid:15910902

[6]. Oakes, J.; Gratton, P. J. Chem. Soc. Perkin Trans 2 1998, 2201-2206.
http://dx.doi.org/10.1039/a805949g

[7]. Puttaswamy; Shubha, J. P.; Jagadeesh, R. V. Trans. Metal Chem. 2007, 32, 991-999.

[8]. Puttaswamy; Vinod, K. N.; Ninge, G. K. N. Dyes Pigments 2008, 78, 131-138.

[9]. Vinod, K. N.; Puttaswamy; Ninge, G. K. N. Inorg. Chim. Acta 2009, 32, 2044-2051.
http://dx.doi.org/10.1016/j.ica.2008.09.038

[10]. Campbell, M. M.; Johnson, G. Chem. Rev. 1978, 78, 65-79.
http://dx.doi.org/10.1021/cr60311a005

[11]. Banerji, K. K.; Jayaram, B.; Mahadevappa, D. S. J. Sci. Ind. Res. 1987, 46, 65-76.

[12]. Agarwal, M. C.; Upadhyay, S. K. J. Sci. Ind. Res. 1990, 49, 13-32.

[13]. Armesto, X. L.; Canle, L.; Garia, M. V.; Santaballa, J. Chem. Soc. Rev. 1998, 27, 453-460.

[14]. Kolvari, E. E.; Ghorbani-Chogamarani, A.; Salehi, P.; Shirini, F.; Zolfigol, M. A. J. Iran. Chem. Soc. 2007, 4, 126-174.

[15]. Murthy, A. R. V.; Rao, B. S. Proc. Indian Acad. Sci. 1952, 35, 69-70.

[16]. Rangappa, K. S.; Manjunathaswamy, K.; Raghavendra, M. P.; Gowda, N. M. Int. J. Chem. Kinet. 2002, 34, 49-55.
http://dx.doi.org/10.1002/kin.10011

[17]. Kambo, N.; Upadhyay, S. K.; Jain, A. K. Oxid. Commun. 2003, 26, 502-509.

[18]. Saldanha, R. J. D.; Ananda, S.; Venkatesha, B. M.; Gowda, N. M. M. J. Mol. Struct. 2002, 606, 147-154.
http://dx.doi.org/10.1016/S0022-2860(01)00859-6

[19]. Hegde, A. C.; Gowda, B. T. Oxid. Commun. 2000, 23, 546-564.

[20]. Puttaswamy; Jagadeesh, R. V.; Nirmala, V.; Radhakrishna, A. J. Mol. Catal. A: Chem. 2005, 229, 211-220.

[21]. Morris, J. C.; Salazar, J. A.; Wineman, M. A. J. Am. Chem. Soc. 1948, 70, 2036-2041.
http://dx.doi.org/10.1021/ja01186a016
PMid:18863795

[22]. Akerloff, G. J. Am. Chem. Soc. 1932, 54, 4125-4139.
http://dx.doi.org/10.1021/ja01350a001

[23]. Bishop, E.; Jennings, V. J. Talanta 1959, 1, 197-212.
http://dx.doi.org/10.1016/0039-9140(58)80034-X

[24]. Hardy, F. F.; Johnston, J. P. J. Chem. Soc., Perkin Trans. 2 1973, 742-746.
http://dx.doi.org/10.1039/p29730000742

[25]. Pryde, B. G.; Soper, F. G. J. Chem. Soc. 1931, 1514-1418.
http://dx.doi.org/10.1039/jr9310001514

[26]. Amis, E. S. Solvent effects on reaction rates and mechanisms, Academic Press, New York, 1966, pp. 1672.

[27]. Collins, C. J.; Bowman M. N. Isotope effects in chemical reactions, Van Nostrand Reinhold, New York, 1970, pp. 267.

[28]. Kohen, A.; Limbach, H. H. Isotope effects in chemistry and biology, CRC Press, Florida, 2006, pp. 827.


How to cite


Shubha, J.; Puttaswamy, P. Eur. J. Chem. 2012, 3(1), 112-118. doi:10.5155/eurjchem.3.1.112-118.532
Shubha, J.; Puttaswamy, P. Oxidative decolorization of carmosine with acidic chloramine-T: Spectrophotometric, kinetic and mechanistic chemistry. Eur. J. Chem. 2012, 3(1), 112-118. doi:10.5155/eurjchem.3.1.112-118.532
Shubha, J., & Puttaswamy, P. (2012). Oxidative decolorization of carmosine with acidic chloramine-T: Spectrophotometric, kinetic and mechanistic chemistry. European Journal of Chemistry, 3(1), 112-118. doi:10.5155/eurjchem.3.1.112-118.532
Shubha, Jayachamarajapura, & Puttaswamy Puttaswamy. "Oxidative decolorization of carmosine with acidic chloramine-T: Spectrophotometric, kinetic and mechanistic chemistry." European Journal of Chemistry [Online], 3.1 (2012): 112-118. Web. 22 Jan. 2021
Shubha, Jayachamarajapura, AND Puttaswamy, Puttaswamy. "Oxidative decolorization of carmosine with acidic chloramine-T: Spectrophotometric, kinetic and mechanistic chemistry" European Journal of Chemistry [Online], Volume 3 Number 1 (31 March 2012)

The other citation formats (EndNote | Reference Manager | ProCite | BibTeX | RefWorks) for this article can be found online at: How to cite item



DOI Link: https://doi.org/10.5155/eurjchem.3.1.112-118.532

CrossRef | Scilit | GrowKudos | Researchgate | Publons | Microsoft | scibey | Scite | Lens | OUCI

WorldCat Paperbuzz Citeas | Dimensions | Semanticscholar | Plumx | Kopernio | Zotero | Mendeley

ZoteroSave to Zotero MendeleySave to Mendeley



European Journal of Chemistry 2012, 3(1), 112-118 | doi: https://doi.org/10.5155/eurjchem.3.1.112-118.532 | Get rights and content

Refbacks

  • There are currently no refbacks.


Bookmark and Share


Copyright (c)




© Copyright 2010 - 2021 • Atlanta Publishing House LLC • All Right Reserved.

The opinions expressed in all articles published in European Journal of Chemistry are those of the specific author(s), and do not necessarily reflect the views of Atlanta Publishing House LLC, or European Journal of Chemistry, or any of its employees.

Copyright 2010-2021 Atlanta Publishing House LLC. All rights reserved. This site is owned and operated by Atlanta Publishing House LLC whose registered office is 2850 Smith Ridge Trce Peachtree Cor GA 30071-2636, USA. Registered in USA.