<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Cetyltrimethylammonium bromide (CTAB) micelles catalyzed the degradation of fuchsin in the entire surfactant concentration range investigated. The pseudo first order rate constants increased with CTAB concentrations. However, there was a decrease in the rate constant at higher concentrations of CTAB. Increase in the rate constant was attributed to the incorporation of fuchsin and hydroxide ion in the stern layer of the CTAB micelles. The kinetics involved the removal of the π-conjugation in fuchsin due to its attack by hydroxide ion on the central C atom of the planar ring which led to the formation of carbinol. The reaction showed first order each to fuchsin and OH<sup>-</sup>. Menger-Portnoy and Piszkiewicz cooperative models were used to explain the micellar and kinetic effects.</p>
</abstract>

Cetyltrimethylammonium bromide (CTAB) micelles catalyzed the degradation of fuchsin in the entire surfactant concentration range investigated. The pseudo first order rate constants increased with CTAB concentrations. However, there was a decrease in the rate constant at higher concentrations of CTAB. Increase in the rate constant was attributed to the incorporation of fuchsin and hydroxide ion in the stern layer of the CTAB micelles. The kinetics involved the removal of the π-conjugation in fuchsin due to its attack by hydroxide ion on the central C atom of the planar ring which led to the formation of carbinol. The reaction showed first order each to fuchsin and OH-. Menger-Portnoy and Piszkiewicz cooperative models were used to explain the micellar and kinetic effects.

Dynamics of CTAB micelle mediated reaction of fuchsin degradation in alkaline medium

Ovidius University Annals of Chemistry

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Cetyltrimethylammonium bromide (CTAB) micelles catalyzed the degradation of fuchsin in the entire surfactant concentration range investigated. The pseudo first...

Dynamics of CTAB micelle mediated reaction of fuchsin degradation in alkaline medium

Published Online: Jul 28, 2022

Page range: 108 - 112

Received: Mar 23, 2022

Accepted: Jul 16, 2022

DOI: https://doi.org/10.2478/auoc-2022-0016

Keywords
cetyltrimethylammonium bromide (CTAB), fuchsin, sodium hydroxide, potassium nitrate, pseudo-phase model

© 2022 Dayo Felix Latona et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dynamics of CTAB micelle mediated reaction of fuchsin degradation in alkaline medium

Published Online: Jul 28, 2022

Page range: 108 - 112

Received: Mar 23, 2022

Accepted: Jul 16, 2022

DOI: https://doi.org/10.2478/auoc-2022-0016

Keywordscetyltrimethylammonium bromide (CTAB), fuchsin, sodium hydroxide, potassium nitrate, pseudo-phase model

© 2022 Dayo Felix Latona et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
cetyltrimethylammonium bromide (CTAB), fuchsin, sodium hydroxide, potassium nitrate, pseudo-phase model