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Effect of Acetic Acid on Chlorination of some Phenols by Chloramine-T: A Kinetic Approach

Author Affiliations

  • 1Department of Chemistry, Govt. Holkar Science College, Indore, MP, INDIA

Res.J.chem.sci., Volume 4, Issue (3), Pages 86-89, March,18 (2014)


Chlorination of some phenols viz., o-Cresol, m-Cresol, p-Nitrophenol, Phenol, p-Cresol and p-Chlorophenol by Chloramine-T have been investigated in the absence and presence of the surfactant, Cetylpyridinium bromide (CPBr). The role of acetic acid in this oxidation reaction has been studied for all the phenols mentioned and summarised in this paper. It is very interesting to note that the reaction rate has a sudden fall by the increase of 5% to 10% acetic acid and further increase of acetic acid the rate of reaction becomes almost constant for all the phenols studied. The order of the reaction with respect to Chloramine -T is found to be one and that of with substrate is positive fractional. For the chlorination of phenols by chloramine-T, Acetic Acid plays a vital role. The experimental results reveals the importance of selection of optimum concentration of acetic acid for the chlorination of phenols by Chloramine–T in the absence and presence of Cetylpyridinium bromide (CPBr).


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