Thermodynamics of Micelle Formation of Ionic Surfactants:  A Critical Assessment for Sodium Dodecyl Sulfate, Cetyl Pyridinium Chloride and Dioctyl Sulfosuccinate (Na Salt) by Microcalorimetric, Conductometric, and Tensiometric Measurements

Chatterjee, Arindam; Moulik, Satya P.; Sanyal, Shankha; Mishra, and B. K.; Puri, Pooja

doi:10.1021/jp0123029

Cited by 349 publications

(313 citation statements)

References 24 publications

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“…In the absence of CeCl 3 , SDS micellization is entropy-driven, whilst with an increase of temperature the SDS micellization clearly becomes enthalpy-driven, which is in good agreement with previous literature reports [21,22].…”

Section: Micellization Of Sds In the Presence Of Ce(iii)/sds Aggregatessupporting

confidence: 92%

“…The solution specific conductance value presented here, κ, was calculated from the experimental specific conductance and corrected for the experimental specific conductance of the water used under the present conditions. Table 1A (Supplementary material) shows the critical micelle concentrations (cmc) and the degree of counterion dissociation of micelles (α = number of counterions dissociated from the micelle/total number of counterions) of SDS at different temperatures; the experimental values are in good agreement with those reported elsewhere [21,22].…”

Section: Methodssupporting

confidence: 81%

“…The standard Gibbs free energy and enthalpy of micellization ( G 0 m and H 0 m ) of SDS in the absence and in the presence of the electrolyte were calculated using [22,33] …”

Section: Micellization Of Sds In the Presence Of Ce(iii)/sds Aggregatesmentioning

confidence: 99%

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Aggregation and micellization of sodium dodecyl sulfate in the presence of Ce(III) at different temperatures: A conductometric study

Valente

Burrows

Cruz

et al. 2008

Journal of Colloid and Interface Science

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Aggregation properties of sodium dodecyl sulfate (SDS) in the presence of cerium(III) chloride, at various temperatures (298.15-323.15 K) have been measured by the electrical conductance technique. The experimental data on aqueous solutions as a function of SDS concentration show the presence of two inflexion points indicating the presence of two distinct interaction mechanisms: the first, occurring at SDS concentrations below the critical micelle concentration of the pure surfactant, which can be explained by the formation of aggregates between dodecyl sulfate (DS − ) and Ce(III), while the second one, at SDS concentrations around the critical micelle concentration (cmc) of the pure surfactant which is due to the SDS micellization. The aggregation between DS − and Ce(III) was confirmed by static light scattering. The binding ratio of DS − /Ce(III) changes from 6 to 4, shows a slight dependence on the Ce(III) concentration and is independent of the temperature. The thermodynamic micellization parameters, Gibbs energy, enthalpy and entropy of micellization were calculated on the basis of the experimental data for the aggregation concentration, and the degree of counterion dissociation of the micelles. The SDS micellization is energetically favoured by increasing either the concentration of CeCl 3 or the temperature. Such behaviour is clearly dominated by a decrease of the micellization (exothermic) enthalpy. The entropy of micellization approaches zero as the cerium(III) chloride concentration and temperature increase.

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Section: Micellization Of Sds In the Presence Of Ce(iii)/sds Aggregatessupporting

confidence: 92%

Section: Methodssupporting

confidence: 81%

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Aggregation and micellization of sodium dodecyl sulfate in the presence of Ce(III) at different temperatures: A conductometric study

Valente

Burrows

Cruz

et al. 2008

Journal of Colloid and Interface Science

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“…This is converted to molarity with the molecular weight of Na and Cl, to be 0.6 M Na + . Using the Corrin-Harkins equation in Chatterjee et al [1], we can estimate the critical micelle concentration under seawater salinity:…”

Section: Supplementary Information Available 362mentioning

confidence: 99%

“…These results provide important constraints on accurate modeling of the 35 deepwater plume and critical geochemical contexts for future toxicological studies. 36 2010 [1]. In both modes, dispersant was added to lower the interfacial tension between oil and 42 water and thereby reduce the size of oil droplets formed by wave action (surface) or by ejection 43 of oil and gas out of the wellhead (deepwater).…”

mentioning

confidence: 99%

Fate of Dispersants Associated with the Deepwater Horizon Oil Spill

Kujawinski

Soule

Valentine

et al. 2011

Environ. Sci. Technol.

805

453

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21Response actions to the Deepwater Horizon oil spill included the injection of ~771,000 gallons 22 (2,900,000 L) of chemical dispersant into the flow of oil near the seafloor. Prior to this incident, 23 no deepwater applications of dispersant had been conducted and thus no data exists on the 24 environmental fate of dispersants in deepwater. We used ultrahigh resolution mass 25 spectrometry and liquid chromatography with tandem mass spectrometry (LC/MS/MS) to 26 identify and quantify one key ingredient of the dispersant, the anionic surfactant DOSS (dioctyl 27 sodium sulfosuccinate), in the Gulf of Mexico deepwater during active flow and again after 28 flow had ceased. Here we show that DOSS was sequestered in deepwater hydrocarbon plumes 29 at 1000-1200m water depth and did not intermingle with surface dispersant applications. 30Further, its concentration distribution was consistent with conservative transport and dilution 31 at depth and it persisted up to 300 km from the well, 64 days after deepwater dispersant 32 applications ceased. We conclude that DOSS was selectively associated with the oil and gas 33 phases in the deepwater plume, yet underwent negligible, or slow, rates of biodegradation in 34 the affected waters. These results provide important constraints on accurate modeling of the 35 deepwater plume and critical geochemical contexts for future toxicological studies. 36 37 38

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Ionic Liquids in Colloidal Regime

Mukherjee

Moulik

2015

Ionic Liquid‐Based Surfactant Science

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Thermodynamics of Micelle Formation of Ionic Surfactants: A Critical Assessment for Sodium Dodecyl Sulfate, Cetyl Pyridinium Chloride and Dioctyl Sulfosuccinate (Na Salt) by Microcalorimetric, Conductometric, and Tensiometric Measurements

Cited by 349 publications

References 24 publications

Aggregation and micellization of sodium dodecyl sulfate in the presence of Ce(III) at different temperatures: A conductometric study

Aggregation and micellization of sodium dodecyl sulfate in the presence of Ce(III) at different temperatures: A conductometric study

Fate of Dispersants Associated with the Deepwater Horizon Oil Spill

Ionic Liquids in Colloidal Regime

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