Effect of some biologically important organic compounds on the miceller properties of sodium dodecyl sulphate. | [Proceedings of Pakistan Academy of Sciences • 2009]

Author(s):

1. M. Jahirul Islam: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet, Bangladesh

2. M. M. R. Choudhuri: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet, Bangladesh

3. S. M. F. Shahed: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet, Bangladesh

4. M. A. Subhan: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet, Bangladesh

Abstract:

The effect of some organic additives such as glucose, phenol, caffeine, urea and formamide on the critical micelle concentration (CMC) of an anionic surfactant sodium dodecyl sulfate (SDS) has been studied by conductance measurement. The investigation was performed in the additives concentration ranging from 0.01 M to 0.06 M. The presence of both urea and formamide cause a linear increase in the CMC from 8.10 mM to 9.5 mM and to 10.15 mM, respectively, while an exponential decreasing trend was observed with increasing the concentration of glucose, phenol and caffeine in the same range. In the latter case, the decreasing trend of the CMC values follows the order: caffeine > glucose > phenol.

Page(s): 91-95

DOI: DOI not available

Published: Journal: Proceedings of Pakistan Academy of Sciences, Volume: 46, Issue: 2, Year: 2009

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