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 AJAC  Vol.1 No.1 , May 2010
Kinetic Studies on Hexavalent Chromium Reduction
Abstract: r(VI) is a known human carcinogen. It is a wide spread environmental contaminant as it is extensively used in different industry. The kinetic study of reduction of Cr(VI) by a known organic substance, 1-butanol in micellar media have been studied spectrophotometrically. The reduction of Cr(VI) to Cr(III) occurs in a micro- heterogeneous system in cell cytoplasm. As micelles are considered to mimic the cellular membranes, the reduction process occurring in the micellar system is considered as a model to obtain insight in to the reduction process prevailing in body systems. Micellar media is also a probe to establish the mechanistic paths of reduction of Cr(VI) to Cr(III) and the effects of some electrolytes common to a biological systems are studied to establish the proposed reaction mechanism strongly. The overall reaction follows a first order dependency on substrate and hexavalent chromium and second order dependency on hydrogen ion. Suitable surfactant & suitable concentration of electrolyte enhance the rate of the reaction.
Cite this paper: nullA. Basu and B. Saha, "Kinetic Studies on Hexavalent Chromium Reduction," American Journal of Analytical Chemistry, Vol. 1 No. 1, 2010, pp. 25-30. doi: 10.4236/ajac.2010.11003.
References

[1]   V. Sarin and K. K. Pant, Removal of Chromium from Industrialwaste by Using Eucalyptus Bark, Bioresource Technology, Vol. 97, No. 1, 2006, pp. 15-20.

[2]   D. Park, Y. S. Yun and J. M. Park, “Use of Dead Fungal Biomass for the Detoxification of Hexavalent Chromium: Screening and Kinetics,” Process Biochemistry, Vol. 40, No. 7, 2005, pp. 2559-2565.

[3]   Z. Kowalski, “Treatment of Chromic Tannery Wastes,” Journal of Hazardous Materials, Vol. 37, No. 1, 1994, pp. 137-144.

[4]   U. Thacker, R. Parikh and Y. Shouche, D. Madamwar, Hexavalent Chromium Reduction by Providencia sp., Process Biochemistry, Vol. 41, No. 6, 2006, pp. 1332- 1337.

[5]   J. T. O’Brien, J. L. Fornsaglio, S. Ceryak, R. S. Patierno, Effects of Hexavalent Chromium on the Survival and Cell Cycle Distribution of DNA Repair—Deficient S. ce-revisiae, DNA Repair, Vol. 1, No. 8, 2002, pp. 617-627.

[6]   P. Pattanapipitpaisal, A. N. Mabbett, J. A. Finalay, A. J. Beswick, M. Paterson-Beedle and A. Essa, “Reduction of Cr(VI) and Bioaccumulation of Chromium by Gram Pos-itive and Gram Negative Microorganisms not Previously Exposed to CR-Stress, Environmental Technology, Vol. 23, No. 7, 2002, pp. 731-745.

[7]   A. N. Mabbett and L. E. Macaskie, “A Novel Isolate of Desulfovibrio sp. with Enhanced Ability to Reduce Cr(VI),” Biotechnology Letters, Vol. 23, No. 9, 2001, pp. 683-687.

[8]   W. A. Smith, W. A. Apel and J. N. Petersen, “Effect of Carbon and Energy Source on Bacterial Chromate Re-duction,” Bioremediation Journal, Vol. 6, No. 3, 2002, pp. 205-215.

[9]   J. V. Bhinde, P. K. Dhakephalkar and K. M. Paknikar, “Microbiological Process for the Removal of Cr(VI) from Chromate Bearing Cooling Tower Effluent,” Biotechnol-ogy Letters, Vol. 18, No. 6, 1996, pp. 667-672.

[10]   S. S. Ahluwalia and D. Goyal, “Microbial and Plant De-rived Biomass for Removal of Heavy Metals from Wastewater,” Bioresouce Technology, Vol. 98, No. 12, 2007, pp. 2243-2257.

[11]   X. Zhou, T. Korenaga, T. Takahashi, T. Moriwake and S. Shinoda, “A Process Monitoring/Controlling System for the Treatment of Wastewater Containing Chromium(VI),” Water Research, Vol. 27, No. 6, 1993, pp. 1049-1054.

[12]   M. Islam, B. Saha and A. K. Das, “Kinetics and Mechanism of 2,2’-Bipyridyl and 1,10-Phenanthroline- Catalysed Chromium(VI) Oxidation of D-Fructose in Aqueous Micellar Media,” Journal of Molecular Catalysis A: Chemical, Vol. 236, No. 1-2, 2005, pp. 260-266.

[13]   M. Islam, B. Saha and A. K. Das, “Kinetics and Mechanism of Picolinic Acid Promoted Chromic Acid Oxidation of Maleic Acid in Aqueous Micellar Media, ” Journal of Molecular Catalysis A: Chemical, Vol. 266, No. 1-2, 2007, pp. 21-30.

[14]   S. Ghosh, A. Basu, K. K. Paul and B. Saha, “Micelle Catalyzed Oxidation of Propan-2-ol to Acetone by Penta-Valent Vanadium in Aqueous Acid Media, ” Molecular Physics, Vol. 107, No. 7, 2009, pp. 615-619.

[15]   A. Basu, T. Ghosh and B. Saha, “Effect of some Non Functional Surfactants and Electrolytes on the Chro-mium(VI) Reduction by Glycerol: A Mechanistic Study,” International Journal of Chemical Kinetics, (manuscript has sent for consideration).

[16]   V. R. Bhalerao and F. A. Kummerow, “Paper Chromato-graphy of 2,4-Dinitrophenylhydrazones of Saturated Ali-phatic Aldehydes,” Vol. 36, No. 10, 1959, pp. 461-463.

[17]   C. A. Bunton and G. Cerichelli, “Micellar Effects upon Electron Transfer from Ferrocenes,” International Journal of Chemical Kinetics, Vol. 12, No. 8, 1980, pp. 519-533.

[18]   F. M. Menger and C. E. Portnoy, “Chemistry of Reactions Proceeding inside Molecular Aggregates,” Journal of the American Chemical Society, Vol. 89, No. 8, 1967, pp. 4698-4703.

[19]   J. W. Mc Bain, “Colloids and their Viscosity,” Transac-tions of the Faraday Society, Vol. 9, 1913, pp. 34-46.

[20]   G. S. Hartle, “The application of the Debye-Hückel Theory to Colloidal Electrolytes,” Transactions of the Faraday Society, Vol. 31, 1935, pp. 31-50.

[21]   J. W. Mc Bain, “Colloid Chemistry, Theoretical and Ap-plied, In: J. Alexander, Ed., New York, 1944.

[22]   R. H. Mattan, R. S. Stearns and W. D. Harkins, “Structure for Soap Micelles as Indicated by a Previously Un-recognized X-Ray Diffraction Band,” Journal of Chemical Physics, Vol. 15, 1947, pp. 209-210.

[23]   W. D. Harkins, “A Cylindrical Model for the Small Soap Micelle,” Journal of Chemical Physics, Vol. 16, 1948, pp. 156-157.

[24]   P. Debye and E. W. Anacker, “Micelle Shape from Dis-symmetry Measurement,” Journal of Physical Chemistry, Vol. 55, No. 5, 1951, pp. 644-655.

[25]   I. Reich, “Factors Responsible for the Stability of Deter-gent Micelles,” Journal of Physical Chemistry, Vol. 60, No. 3, 1956, pp. 257-262.

[26]   C. A. Bunton, “Reaction Kinetics in Aqueous Surfactant Solutions,” Catalysis Reviews, Science and Engineering, Vol. 20, No. 1, 1979, pp. 1-56.

[27]   H. Morawetz, “Catalysis and Inhibition in Solutions of Synthetic Polymers and in Micellar Solutions,” Advances in Catalysis & Related Subject, Vol. 20, In: D. D. Eley, Ed., Academic Press, New York, 1969, pp. 341-371.

[28]   E. M. Cordes and R. B. Dunlop, “Kinetics of Organic Reactions in Micellar Systems,” Accounts of Chemical Research, Vol. 2, No. 11, 1969, pp. 329-337.

[29]   E. J. Fendler and J. H. Fendler, “Micellar Catalysis in Organic Reactions: Kinetic and Mechanistic Implications,” Advances in Physical Organic Chemistry, Vol. 8, 1970, pp. 271-406.

[30]   C. A. Bunton, M. Minch and L. Sepulveda, “Enhancement of Micellar Catalysis by Added Electrolyte,” Journal of Physical Chemistry, Vol. 75, No. 17, 1971, pp. 2707-2709.

[31]   A. K. Das, “Micellar Effect on the Kinetics and Mechan-ism of Chromium(VI) Oxidation of Organic Substrates,” Coordination Chemistry Reviews, Vol. 248, No. 1-2, 2004, pp. 81-99.

[32]   K. J. Mysels and L. H. Princen, “Light Scattering by Ideal Colloidal Electrolyte,” Journal of Colloid Science, Vol. 12, No. 6, 1957, pp. 594-605.

[33]   K. Shinoda, “The Critical Micellar Concentrations in Aqueous Solutions of Potassium Alkyl Malonates,” Journal of Physical Chemistry, Vol. 59, No. 5, 1955, pp. 432-435.

 
 
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