Acoustic studies of copper soap–urea complexes derived from groundnut and sesame oils

Sharma, Atul; Saxena, Meenakshi; Sharma, Rishabh

doi:10.30970/jps.21.4601

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…The increase in viscosity with the increase of soap concentration may be due to the increasing tendency of soap molecules to associate in the form of micelles. The existence of micelles of surfactants in organic solvents and mixed solvents has been reported by number of workers [29,30].The plots of viscosity η against the soap concentration c are characterized by an intersection of two straight lines corresponding to the CMC of the soap Fig. (1).…”

Section: Viscositymentioning

confidence: 78%

Surface Active Properties and Micellar Features of Copper Soaps Derived from Various Edible Oils

Sharma¹,

Saxena²,

Sharma³

2018

CHEM

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Introduction: The molar volume, viscosity, specific viscosity, and fluidity of copper surfactant derived from various edible oils in methanol -benzene solvent have been determined at a constant temperature 303 K. Methods / Results: The results were used to calculate (CMC), soap complex-solvent interactions and the effect of chain length of the surfactant molecule on various parameters. The conclusions with regard to soap-soap and soap- methanol -benzene interaction have been discussed in terms of well-known Moulik’s and Jones- Dole equations. The effect of surfactant concentration on viscosity of the solution in solvent mixture has been discussed. Conclusion: The observations suggested that the structure breaking effect by the solute on the solvent molecules is more prominent above CMC as compared to below CMC after the formation of the micelles. The vital information plays an important role in various industrial process as well as biological applications.

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Section: Viscositymentioning

confidence: 78%

Surface Active Properties and Micellar Features of Copper Soaps Derived from Various Edible Oils

Sharma¹,

Saxena²,

Sharma³

2018

CHEM

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“…Copper soap was prepared by refluxing the non-edible oil, i.e., karanj oil (extracted from kernels and purified) with ethyl alcohol and 2N KOH solutions for 3-4 h (Direct Metathesis). 19 The neutralisation of excess KOH present was done by slow addition of 0.5N HCl. 20 Saturated solution of copper sulphate was then added to it to convert neutralised potassium soap into their corresponding copper soap.…”

Section: Methodsmentioning

confidence: 99%

Volumetric and Viscometric Studies of Copper Surfactant Derived from Karanj (Pongamia pinnata) Oil in Methanol-benzene Mixture at 298.15 K

Khan¹,

Sharma²,

Sharma³

2019

JPS

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The density, molar volume, apparent molar volume, viscosity and other parameters of Cu(II) surfactant derived from karanj oil in non-aqueous solvents of varying compositions have been determined at constant temperature 298.15 K. The results were used to determine the critical micelle concentration (CMC), soap-solvent interactions and the effect of chain length of the surface active molecule on various parameters. The CMC values of copper karanj soap solutions decreased with the increase in the concentration of polar solvent methanol in the solvent mixture. These studies were done to study the solution behaviour, micellar features and various interactions of the derived biologically active surfactant with polar and non-polar solvents to understand the applied part of the molecule. The apparent molar volume has been examined in terms of Masson equation, and the limiting apparent molar volume has been interpreted in terms of solute-solvent interaction. The detailed study of aforesaid compounds clearly indicates that the solutesolvent interaction decreases with the increase in ring strain and size of the synthesised complexes. The conclusions with regard to solute-solute and solute-solvent interaction have been discussed in terms of well-known Moulik's and Jones-Dole equations. This vital information plays an important role in the selection of the synthesised molecule for various industrial and biological applications.

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“…The results are viceversa for β and L f for copper soap-urea complex system (Tables 3 to 6). 31,32 The values of CMC of ultrasonic parameters are higher in 40% methanol-benzene mixture as compared to 20% methanol-benzene mixture. With regards to chain length of the soap segment of the complex molecules, the CMC follows the order:…”

Section: Micellar Featuresmentioning

confidence: 98%

Ultrasonic Studies of Copper Soap-urea Complexes Derived from Mustard and Soybean Oils

Sharma¹,

Saxena²,

Sharma³

2018

JPS

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Ultrasonic velocities and densities have been measured in ternary mixtures containing copper soap-urea complexes derived from mustard and soybean oils in 20% and 40% methanol-benzene mixture to assess the effect of polarity of solvent on the micellar features of surfactant. The studies suggest that predomination of benzene (higher percentage of non-polar solvent) plays a significant role in compacting the molecular organisation of the micelles. From these values, the ultrasonic velocity (u), the specific acoustic impedance (Z), adiabatic compressibility (β), intermolecular free length (L f), apparent molar compressibility (f k), molar sound velocity (R) and primary solvation number (S n) have been calculated. The data clearly indicate that the values of u, Z, S n and R increase whereas the values β and L f decrease consistently with increase in the soap complex concentration. The critical micelle concentration (CMC) has also been determined and it has been found that CMC is dependent on the composition of the solvent mixture and composition of the edible oil. The results have been analysed in terms of Masson's equation. The results have been explained on the basis of intermolecular interactions between solute and solvent molecules and effect of polarity and concentration were accessed on various acoustic parameters.

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Acoustic studies of copper soap–urea complexes derived from groundnut and sesame oils

Cited by 6 publications

References 6 publications

Surface Active Properties and Micellar Features of Copper Soaps Derived from Various Edible Oils

Surface Active Properties and Micellar Features of Copper Soaps Derived from Various Edible Oils

Volumetric and Viscometric Studies of Copper Surfactant Derived from Karanj (Pongamia pinnata) Oil in Methanol-benzene Mixture at 298.15 K

Ultrasonic Studies of Copper Soap-urea Complexes Derived from Mustard and Soybean Oils

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