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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 19, No. 4, 2015, pp. 577-582
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Bioline Code: ja15073
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 19, No. 4, 2015, pp. 577-582
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Micellization of a Cationic Surfactant in Mixed Aqueous and Non-aqueous Solvent Systems
GRACE, AGBIZU COOKEY & DANIEL, OZIOMA UZOMA
Abstract
The Micellisation behaviour of sodium dodecyl sulfate (SDS) in different
mole fractions (0.1 0.5 and 0.9) of propylene glycol (PG) – water mixed solvents was
investigated using electrical conductivity measurement at temperatures of 30, 35 and 40 °C.
The critical micelle concentration (CMC) increased and the degree of counterion dissociation
values (α) decreased with increase in the composition of PG. Variation of CMC with
temperature is marked with U-shaped curves while the degree of counterion dissociation is
linear with temperature. These results have been discussed based on the influence of PG on
the cohesive forces of the mixed solvents as well as temperature effect on the thermal motion
of mixed solvent molecules
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© Copyright 2015 - Journal of Applied Sciences and Environmental Management
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