Influence of solvent permittivity and divalent salt on micellization behavior of sodium dodecyl sulfate: Conductivity measurements and simulation study

Niraula, Tulasi Prasad; Shah, Renu; Kumar, Dileep; Domínguez, Héctor; Ríos‐López, Marlene; Salazar-Arriaga, Ana Beatriz; De, Ranjit; Bhattarai, Ajaya

doi:10.1016/j.molliq.2021.118186

Cited by 19 publications

(7 citation statements)

References 63 publications

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“…The cmc in both aqueous and bromophenol blue environments was pinpointed at the intersection of two linear segments. Furthermore, the β value, indicative of the micellization efficiency, was derived from the ratio of the slopes before and after reaching the cmc [56–58] . The detailed values are presented in columns two and three of Tables 1 and 2.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, the β value, indicative of the micellization efficiency, was derived from the ratio of the slopes before and after reaching the cmc. [56][57][58] The detailed values are presented in columns two and three of Tables 1 and 2. The Gibbs free energy changes (ΔG c ) for the micellization of CTAB, both in the absence and presence of the dye as derived from Equation ( 7), are listed in the fourth column of both tables.…”

Section: The Micellization Thermodynamic Parameters Of Ctab In Absenc...mentioning

confidence: 99%

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Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Zheng,

Ma,

Zhang

et al. 2024

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The interactions between surfactants and dyes in aqueous solutions are essential for gaining insights into dyeing processes across various industries and for driving advancements in chemical research. This paper investigates the interaction between the anionic dye bromophenol blue (BPB) and the cationic surfactant cetyltrimethylammonium bromide (CTAB) in aqueous solutions. It was observed that the absorbance value at the maximum absorption peak of BPB changes systematically with increasing CTAB concentration, revealing the critical premicelle concentration (cpc) and critical micelle concentration (cmc) of CTAB. Employing a micellization model and measuring the electric conductivity across different concentrations of CTAB, the micellization thermodynamic parameters of CTAB, both in the absence and presence of BPB, were determined. The findings indicate that the associative interaction between BPB and CTAB significantly influences the formation of CTAB micelles.

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Section: Resultsmentioning

confidence: 99%

Section: The Micellization Thermodynamic Parameters Of Ctab In Absenc...mentioning

confidence: 99%

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Zheng,

Ma,

Zhang

et al. 2024

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“…There is the calculation of Gibbs free energy of micellization (∆𝐺 m o ) [8] as ∆𝐺 m o = (2 − α)𝑅𝑇 ln𝑋 cmc (1) Here, R is the universal gas constant, T is the absolute temperature and 𝑋 cmc is the mole fraction of surfactant at CMC. The critical micelle concentration (CMC), degree of micelle ionization (α) and standard free energy of micellization (∆𝐺 m o ) of SDS in the absence and presence of salts in water are given in Table 1.…”

Section:  (Ms/cm)mentioning

confidence: 99%

“…When salts are added to surfactants, their properties change, which plays an influential role in many research fields. Conductivity measurements in aqueous and ethanol-water systems at 298.15 K, Niraula et al investigated the influence of solvent permittivity and salt on sodium dodecyl sulphate micellization behavior [8]. Ren studied the mechanism of salt effect on micellization of sodiumdodecyl diamino sulphonate amphoteric surfactant in aqueous medium by tensiometry using the Wilhelmy plate method at 298.15 K [9].…”

Section: Introductionmentioning

confidence: 99%

Micellization of sodium dodecyl sulphate in the presence and absence of potassium sulphate and nickel sulphate

et al. 2022

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The effect of addition of salts on the micellization of anionic surfactant sodium dodecyl sulphate (SDS) in aqueous medium has been studied by conductance measurement at 298.15 K. The critical micelle concentration (CMC) as well as thermodynamic properties was evaluated. From the premicellar and postmicellar slopes, the degree of dissociation (α) of SDS was also calculated. On adding the salts, CMC decreased whereas degree of dissociation increased. Employing these CMC and α values, the standard free energy of micellization was also evaluated. The negative values of was decreased when K2SO4 was added but increased when NiSO4 was added. BIBECHANA 19(2022)195-200

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“…In recent years, micellar systems have been widely used in formulation development to resolve poor solubility issues [ 9 – 12 ]. These are colloidal micro-/nanodispersion particles that are present in the core–shell of surfactant/polymer or both [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Physico-chemical and spectroscopic investigation of flavonoid dispersed C _n TAB micelles

et al. 2022

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In this study, kaempferol (0.2 m/mmol kg −1 ) dispersed cationic surfactant micelles were prepared as a function of alkyltrimethylammonium bromide (C n TAB) hydrophobicity (C = 12 to C = 16). The dispersion study of kaempferol in different C n TAB, i.e. dodecyltrimethylammonium bromide (C = 12), tetradecyltrimethylammonium bromide (C = 14) and hexadecyltrimethylammonium bromide (C = 16), was conducted with the physico-chemical properties of density, sound velocity, viscosity, surface tension, isentropic compressibility, acoustic impedance, surface excess concentration and area occupied per molecule and thermodynamic parameters Gibbs free energy, enthalpy and activation energy measured at 298.15 K. These properties were measured with varying concentration of C n TAB from 0.0260 to 0.0305 mol kg −1 in a 10% (w/w) aqueous dimethyl sulfoxide solvent system. The variations in these measured properties have been used to infer the kaempferol dispersion stability via hydrophobic–hydrophilic, hydrophilic–hydrophilic, van der Waals, hydrogen bonding and other non-covalent interactions.

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Influence of solvent permittivity and divalent salt on micellization behavior of sodium dodecyl sulfate: Conductivity measurements and simulation study

Cited by 19 publications

References 63 publications

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Micellization of sodium dodecyl sulphate in the presence and absence of potassium sulphate and nickel sulphate

Physico-chemical and spectroscopic investigation of flavonoid dispersed C _n TAB micelles

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Influence of solvent permittivity and divalent salt on micellization behavior of sodium dodecyl sulfate: Conductivity measurements and simulation study

Cited by 19 publications

References 63 publications

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Micellization of sodium dodecyl sulphate in the presence and absence of potassium sulphate and nickel sulphate

Physico-chemical and spectroscopic investigation of flavonoid dispersed C n TAB micelles

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Product

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Physico-chemical and spectroscopic investigation of flavonoid dispersed C _n TAB micelles