• Rahul. S. Garud
• Gokul. P. Borse
• Kalpesh. H. Patil

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.

Viscosity, density, 18-crown-6, Surfactant, Complexation, interaction, Rb+ ion.

"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. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 11, page no.c841-c847, November-2025, Available :http://www.jetir.org/papers/JETIR2511300.pdf

"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. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 11, page no. ppc841-c847, November-2025, Available at : http://www.jetir.org/papers/JETIR2511300.pdf