Kinetics of Oxidation of Indigo Carmine by Vanadium (V) in Presence of Surfactants

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Kinetics of Oxidation of Indigo Carmine by Vanadium (V) in Presence of Surfactants

Author Affiliations

¹Mahatma Gandhi Institute of Technical Education and Research Centre, Navsari, Eru-Aat road, Gujarat, INDIA

Res.J.chem.sci., Volume 5, Issue (11), Pages 24-30, November,18 (2015)

Abstract

The kinetics of oxidation of Indigo carmine by V (V) has been investigated in aqueous sulphuric acid media. The reaction studied spectrophotometrically in aqueous sulphuric acid medium is first order in vanadium (V) and indigo carmine. Plots of k_obs versus [H⁺] are linear with positive intercepts on k_obs axes, suggesting the formation of a complex between vanadium (V) and dye. The oxidation of indigo carmine by V (V) in aqueous sulphuric acid media in the presence of cationic, anionic and non-ionic surfactants at different temperatures has been investigated. The activation and thermodynamic parameters have been calculated.

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[ref1] Dwars T., Pactzold B. and Oehme G., Angew. Chem. Int. Edn., 44, 7174 (2005)

[ref2] Seo S.H., Chang J.Y. and Tew G.N., Angew. Chem. Int. Edn., 45, 7526 (2006)

[ref3] Ryu J.H., Hong D.J. and Lee M., Chem Commun, 1043 (2008)

[ref4] Islam M., Saha B. and Das A.K., J. Mol. Catal, A Chem., 236, 260 (2005)

[ref5] Bayer R., Islam M., Saha B. and Das A.K., Carbohyd. Res., 340, 2163 (2005)

[ref6] Islam M., Saha B. and Das A.K., J. Mol. Catal, A Chemical, 266, 21 (2007)

[ref7] SahaB., SarkarS. and Choudhury K.M., Int. J. Chem. Kinet., 40, 282 (2008)

[ref8] SahaB., Choudhury K.M., and Mandal J., J. Sol. Chem., 37, 1321 (2008)

[ref9] Choudhury K.M., Mandal J. and Saha B., J. Coord. Chem., (in press)

[ref10] Gopala Rao G., Rao VP and Murty BVSR, Z analyt chem.,147, 161 (1955)

[ref11] Gopala Rao G and Venkateswara Rao N, Talanta,8, 539 (1961)

[ref12] Bruice T.C., Katzhendler J. and Fedor L.R., J. Am. Chem. Soc.,90, 1333 (1968)

[ref13] Piszkiewicz D., J. Am. Chem. Soc.,99, 1550 (1977); 99, 7695 (1977); 98, 3053 (1976)

[ref14] Waters W.A. and Littler J.S., J chem. Soc., 3014 (1959)

[ref15] Jones J.R. and Waters WA, J chem. Soc., 352 (1963)

[ref16] Shankar J. and Joshi S.N., Indian J. Chem., 1, 289 (1963)

[ref17] Sengupta K.K., Chakladar J. K., PalB.P. and Mukherjee D.C., J. Chem. Soc., Perkin, 11, 7, 926 (1973)