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KMID : 1059520120560060720
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Journal of the Korean Chemical Society
2012 Volume.56 No. 6 p.720 ~ p.724
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Micellar Catalysis on 1,10-Phenanthroline Promoted Chromic Acid Oxidation of Ethane-1,2-diol in Aqueous Media at Room Temperature
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Ghosh Sumanta K.
Saha Rumpa
Ghosh Aniruddha
Basu Ankita
Mukherjee Kakali
Saha Indrajit
Saha Bidyut
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Abstract
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Under pseudo-first order conditions, the monomeric species of Cr(VI) was found to be kinetically active in the absence of phenanthroline (phen) whereas in the phen-promoted path, the Cr(VI)-phen complex undergoes a nucleophilic attack by etane-1,2-diol to form a ternary complex which subsequently experience a redox decomposition leading to hydroxy ethanal and Cr(III)-phen complex. The effect of the cationic surfactant (CPC), anionic surfactant (SDS) and neutral surfactant (TX-100) on the unpromoted and phen-promoted path have been studied. Micellar effects have been explained by considering the preferential partitioning of reactants between the micellar and aqueous phase. Combination of TX-100 and phenanthroline will be the ideal for chromic acid oxidation of ethane-1,2-diol in aqueous media
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KEYWORD
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1,10-Phenanthroline, Ethane 1,2-diol, SDS, CPC, TX-100
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