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Abstract
Photochemic al reduction of Cr (VI) i nto Cr (III) has been reported earlier in the presence of glycerol (Yurkow et al., 2002). The introduction of EDTA salt in the reagent that is prepared to have an incomplete reaction enhances the rate of reduction as it enhances th e ionic strength considerably. The acid and a carbon source was provided through the reaction of glycerol and concentrated Sulphuric acid. The reagent thus formulated is efficient enough to reduce the hexavalent chromium as evident by its appearance in the solut i on .
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References
- Yurkow, E. J., Hong, J., Min, S. and Wang Su*; 2002. Photochemical reduction of hexavalent chromium in glycerol-containing solutions. Environmental pollution , 117:1-3 DOI: https://doi.org/10.1016/S0269-7491(01)00297-4
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References
Yurkow, E. J., Hong, J., Min, S. and Wang Su*; 2002. Photochemical reduction of hexavalent chromium in glycerol-containing solutions. Environmental pollution , 117:1-3 DOI: https://doi.org/10.1016/S0269-7491(01)00297-4
Chen, H. and Cutright, T., 2001. EDTA and HEDTA effects on Cd, Cr, and Ni uptake by Helianthus annuus. Chemosphere, 45:21 – 28. DOI: https://doi.org/10.1016/S0045-6535(01)00031-5
Chou, I. N., 1989. Distinct cytoskeleton injuries induced by As, Cd, Co, Cr, and Ni compounds. Biomed. Environ. Sci., 2:358-365.
Frank C. Lu, 1996. Basic Toxicology. Third Edition, published at Taylor and Francis publishers USA.
Gibbs, H. J., Lees, P. S., Pinsky, P. F., Rooney, B. C., 2000. Lung Cancer among workers in chromium chemical production. Am. J. Ind. Med., 38 (2): 115 – 126. DOI: https://doi.org/10.1002/1097-0274(200008)38:2<115::AID-AJIM1>3.0.CO;2-Y
Headlam, H.A. and Lay, P.A., 2001. EPR spectroscopic studies of the reduction of chromium (VI) by methanol in the presence of peptides Formation of long lived chromium (V) peptide complexes. Inorg. Chem., 40 (1):78 – 86. DOI: https://doi.org/10.1021/ic000299m
Ignaz J. Buerge and Stephan J. Hug; 1998. Influence of Organic Ligands on Chromiumn (VI) Reduction by Iron (II). Environ. Sci. Technol., 32:2092 – 2099. DOI: https://doi.org/10.1021/es970932b
Jeremy F., Joshua C., David F., Ken K., Bruce B. and Maxim B. Non-Metabolic reduction of Cr(VI) by bacterial surfaces under nutrient absent conditions. Journal of conference abstracts, 5(2): 396.
Calder, L.M., 1988. In Chromium in the Natural and Human Environments; Nriagu, I.O., Nieboer, E. Eds.; Wiley: New York, pp 215 – 229.
Bartlett, R. J. and James, B. R., 1988. In Chromium in the Natural and Human Environments; Nriagu, I.O., Nieboer, E. Eds.; Wiley: New York, pp 267 – 304.
Palmer, C.D.; Wittbrodt, P.R., 1991. Processes affecting the remediation of chromium contaminated sites. Enviorn. Health Perspectives 92: 25-40. DOI: https://doi.org/10.1289/ehp.919225