The influence of an electrolyte on micelle formation in aqueous solutions of sodium monoalkyl sulfosuccinates

Kolesnikova, E. N.; Glukhareva, N. A.

doi:10.1134/s0036024409120206

Cited by 9 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is possibly due to differences in technique and the purity of NaDS used (a problem also seen in CMC measurements for instance [18,36,45,47]). Moreover, earlier studies proposed that the existence of the linearity in Corrin-Harkins plot can be reconciled using a model to directly estimate the apparent counterion binding onto the micelle parameter as the slope K g is equivalent to b Na þ [12,48]. In this study, the value of K g (0.59-0.63) is roughly equivalent to the value predicted by Stellner and Scamehorn [1] of b Na þ , 0.67.…”

Section: Measurement and Modeling Of Counterion Binding To The Micellesupporting

confidence: 55%

Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Maneedaeng

Haller

Grady

et al. 2011

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Section: Measurement and Modeling Of Counterion Binding To The Micellesupporting

confidence: 55%

Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Maneedaeng

Haller

Grady

et al. 2011

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…The physical methods for CMC determination includes conductivity, solubility, viscosity, light scattering, measuring the surface tension by Wiebelmy slide method or by the method of maximum bubble pressure, measurement of ion activity and by dye incorporation method, Gel filtration spectrophtometrically and counter ion magnetic resonance [2][3][4][5][6]. Some authors had been used the conductivity measurements to study the micellization of; SDS surfactant in water and in propanol-water mixed solvent [7][8][9][10][11][12], other surfactant [13,14] and ionic liquids [15][16][17][18][19]. The density measurements had been used to calculate the molar volume of some surfactants [20] and other substances in different solutions [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Solvation thermodynamic parameters for sodium dodecyl sulfate (SDS) and sodium lauryl ether sulfate (SLES) surfactants in aqueous and alcoholic-aqueous solvents

El–Dossoki

Gomaa

Hamza³

2019

SN Appl. Sci.

View full text Add to dashboard Cite

Conductivity of sodium dodecyl sulfate (SDS) and sodium lauryl ether sulfate (SLES) surfactants in aqueous and in alcoholic-aqueous mixed solvents (methanol, ethanol, and glycerol) with different mole fractions of alcohols has been measured experimentally at different temperatures (298.15, 303.15, 308.15 and 313.15 K). Surface tension was also measured experimentally for SDS and SLES in aqueous solution at 298.15 K. Critical micelle concentration (CMC) of both SDS and SLES was determined from the measured conductivity and surface tension data. The CMC was found to increase as the temperature and alcohol mole fraction increased in all solvents used. Depending on the conductivity data, the association constant (K a ) of both SDS and SLES was also determined applying Shedlowsky conductance equation. The thermodynamic parameters (ΔG˚, ΔH˚, and ΔS˚) of the micellization and association processes were evaluated from the temperature dependence of micellization and association constants. The results indicate that the association constant of both SDS and SLES decrease as the temperature and alcohol mole fraction increased in all solvents used. Also it was found that CMC and K a of both SDS and SLES increase in the order: methanol > ethanol > glycerol. The association process was found to be spontaneous one. The density and refractive index of both SDS and SLES in aqueous and in alcoholicaqueous mixed solvents (methanol, ethanol, and glycerol) with different mole fractions of alcohols, has been measured experimentally at 298.15 K. Depending on the density data, the molar volume of the two surfactants was determined and discussed. Also depending on the refractive index data, the molar refraction and the polarizability of both SDS and SLES was calculated and discussed. A computer programs were used for all calculations.

show abstract

“…Inorganic electrolytes influence all the colloidal properties of surfactants, increasing their micelle forming ability, solubilizing action, and wetting. The introduction of electrolytes also decreases the critical micelle concentration of ionogenic surfactants (Kolesnikova and Glukhareva, 2009). The addition of NaCl to the SDS medium increased the solubility of orlistat, in agreement with reported data (Table 2).…”

Section: Solubility and Dissolution Studiesmentioning

confidence: 99%

Nanosized particles of orlistat with enhanced in vitro dissolution rate and lipase inhibition

Dolenc

Govedarica

Dreu

et al. 2010

International Journal of Pharmaceutics

View full text Add to dashboard Cite

The influence of an electrolyte on micelle formation in aqueous solutions of sodium monoalkyl sulfosuccinates

Cited by 9 publications

References 10 publications

Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Solvation thermodynamic parameters for sodium dodecyl sulfate (SDS) and sodium lauryl ether sulfate (SLES) surfactants in aqueous and alcoholic-aqueous solvents

Nanosized particles of orlistat with enhanced in vitro dissolution rate and lipase inhibition

Contact Info

Product

Resources

About