Paper Title
INVESTIGATION OF DENSITY, VISCOSITY, AND EXCESS THERMODYNAMIC PARAMETERS IN TERNARY SYSTEMS COMPRISING ONE MOLAL AQUEOUS ALKALI METAL SALT, 18 CROWN 6 ETHER, AND 1 CMC SURFACTANT.
Keywords
- Viscosity
- density
- 18-crown-6
- Surfactant
- Complexation
- interaction
Article Type
Research Article
Research Impact Tools
Publication Info
Volume: 12 | Issue: 11 | Pages: c841-c847
Published On
November, 2025
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Abstract
The effect of surfactant and temperature on the Complexation of 18-crown-6 with aqueous alkali metal ion. The viscosities and densities of aqueous solution of RbBr with various Concentrations of 18-crown-6 with one CMC Surfactant (1-Decyl Trimethyl Ammonium Bromide) have been measured at 298.15K and 308.15K. The experimental data obtained were used to calculate the excess volume (VE) and Viscosity deviation (∆η). These results are interpreted in terms of interaction and Complexation Rb+ ion with Cavities of 18-Crown-6 in presence and absence of Surfactant. Water is the high polarity solvent therefore Rb+ ion has more solvation. In presence of surfactant reduce the ability of complexation. Generally at higher temperature hydration of Rb+ ion with water decreases and enhances the Complexation between 18-crown-6 with Rb+ ion.
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