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Determination of the Critical Micelle Concentration of Cationic Surfactants: An Undergraduate Experiment

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Xirong Huang , Jinghe Yang , Wenjuan Zhang , Zhenyu Zhang and Zesheng An

Shandong University, Department of Chemistry, Jinan 250100, P. R. CHINA

J. Chem. Educ., 1999, 76 (1), p 93

DOI: 10.1021/ed076p93

Publication Date (Web): January 1, 1999

Section:

History, Education, and Documentation

Abstract

A novel method based on the catalytic effect of micelles exerted by cetyltrimethylammonium bromide (CTAB) and cetylpyridinium bromide (CPB), respectively, on the indicator reaction between H2O2 and bromopyrogallol red (BPR), a triphenylmethane dye, to determine the critical micelle concentration (cmc) of CTAB and CPB.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Dyes / Pigments

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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

Thermodynamics of Sodium Dodecyl Sulfate (SDS) Micellization: An Undergraduate Laboratory Experiment
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Journal of Chemical Education2011 88 (5), 629-633
- Thermodynamics of Sodium Dodecyl Sulfate (SDS) Micellization: An Undergraduate Laboratory Experiment
  Juan P. Marcolongo and Martín Mirenda
  Journal of Chemical Education2011 88 (5), 629-633
  An undergraduate laboratory experiment is presented that allows a thermodynamic characterization of micelle formation of sodium dodecyl sulfate (SDS) in aqueous solutions. The critical micelle concentration (CMC) and the degree of micelle ionization (α) ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
The Role of Bromide Ions in Seeding Growth of Au Nanorods
Niti Garg, Clark Scholl, Ashok Mohanty and Rongchao Jin
Langmuir2010 26 (12), 10271-10276
- The Role of Bromide Ions in Seeding Growth of Au Nanorods
  Niti Garg, Clark Scholl, Ashok Mohanty and Rongchao Jin
  Langmuir2010 26 (12), 10271-10276
  We report our findings on the important role of bromide ions in the seeding growth process of Au nanorods. The seed-mediated process constitutes a well-developed method for synthesizing gold nanorods in high yield, which is facilitated by a micelle-...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Surfactant Adsorption: A Revised Physical Chemistry Lab
Marc R. Bresler and John P. Hagen
Journal of Chemical Education2008 85 (2), 269
- Surfactant Adsorption: A Revised Physical Chemistry Lab
  Marc R. Bresler and John P. Hagen
  Journal of Chemical Education2008 85 (2), 269
  Many physical chemistry lab courses include an experiment in which students measure surface tension as a function of surfactant concentration. In the traditional experiment, the data are fit to the Gibbs isotherm to determine the molar area for the ...
  Abstract | Hi-Res PDF | PDF w/ Links
Modern Developments in the Physical Chemistry Laboratory
Samuel A. Abrash
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- Modern Developments in the Physical Chemistry Laboratory
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  Developments in the physical chemistry laboratory since the publication of the germinal text by Schwenz and Moore (1) are categorized and reviewed. The categories examined include modern instrumentation, current topics in chemistry, integrated ...
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