Health & Environmental Research Online (HERO)


Print Feedback Export to File
2893909 
Journal Article 
Micellar catalyzed chlorination of phenol by chloramine-T 
Sarasan, G 
2003 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
15 
133-138 
The chlorination of phenol by chloramine-T (CAT) has been catalysed by cetyl pyridinium bromide (CPBr). The reaction was followed titrimetrically in acetic acid-water (20% v/v) medium at 313 K. The plot of observed rate constant vs. [CAT] proves the first order dependency of the reaction with respect to [CAT] both in presence and absence of the micelle. Though the rate with respect to CAT is one, the orders in phenol are fractional and zero in the presence and absence of the surfactant respectively. The rate of reaction increases with increase in concentration of surfactant. The positive cooperativity obtained indicates the possible interaction between micelle and substrate. 
micellar; catalyzed; chlorination; phenol; chloramine-T