- Gazi University Journal of Science
- Vol: 36 Issue: 1
- Interaction of Methyl Red with Cetylpyridinium Chloride in Methanol-Water System
Interaction of Methyl Red with Cetylpyridinium Chloride in Methanol-Water System
Authors : Neelam Shahi, Sujit Kumar Shah, Amar Prasad Yadav, Ajaya Bhattarai
Pages : 120-134
Doi:10.35378/gujs.978088
View : 6 | Download : 3
Publication Date : 2023-03-01
Article Type : Research
Abstract :The interaction between methyl red (azo dye) and cetylpyridinium chloride (cationic surfactant) in the methanol-water system were studied using a spectrophotometric technique. Variable parameters like constant dye concentration and its structure, surfactant concentration, pH, absorbance, and solvent composition were studied. Using the UV-Vis technique, critical micelle concentrations (CMCs) of cetylpyridinium chloride were measured with methyl red. The spectral data were analyzed and determined the differential absorbance, binding and partition constants, partition coefficient, the Gibbs free energy of binding and partition in mixed solvent media (0.1, 0.2, 0.3, 0.4 volume fraction (v.f.)s of methanol, respectively).Keywords : Azo Dye, Cationic surfactant, CMC, Absorbance, Hypochromic shift