Premium
Volumetric, Compressibility, and Surface Tension Studies on Micellization Behavior of SDS in Aqueous Medium: Effect of Sugars
Author(s) -
Chauhan Suvarcha,
Kumar Kuldeep,
Singh Kailash,
Jyoti Jiwan
Publication year - 2014
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-013-1532-7
Subject(s) - chemistry , pulmonary surfactant , surface tension , critical micelle concentration , molar volume , aqueous solution , isentropic process , gibbs isotherm , micelle , compressibility , thermodynamics , sodium dodecyl sulfate , molality , chromatography , analytical chemistry (journal) , organic chemistry , biochemistry , physics
The densities ( d ) , velocities of sound ( v ) , and surface tension ( γ ) , of anionic surfactant sodium dodecyl sulfate in presence of aqueous saccharides (fructose and maltose) with concentrations 0.01 and 0.10 mol kg −1 have been reported over a wide temperature range (293.15–313.15 K) at an interval of 5 K. The apparent molar volume ( φ v ) , isentropic compressibility ( κ s ) , and apparent molar adiabatic compression ( φ κ ) values have been calculated using densities and velocities of sound data. Both, φ v and φ κ vary non‐linearly at lower concentration of surfactant and tend to achieve linearity at higher concentration of surfactant in presence of saccharides. From the surface tension data, parameters like surface excess ( Γ max ) , minimum area occupied by the surfactant molecule at the saturated air/solution interface ( A min ) and surface film pressure ( Π CMC ) have been computed. The effect of additives on these parameters has been discussed in terms of different types of the interactions pertaining in the micellar system. An attempt has also been made to draw an inference regarding the effect of these additives on the critical micelle concentration of the surfactant.