Determination of Densities of some R4NI–Solutions in DMSO–Dioxane Solvent Mixtures at 250cby Magnetic float Densitometer and then study Masson‘s Equation from ϕvData.

DR. INDU SAXENA; RIKKAM DEVI; VIJAY KUMAR

Volume : V, Issue : III, March - 2015

Determination of Densities of some R4NI–Solutions in DMSO–Dioxane Solvent Mixtures at 250cby Magnetic float Densitometer and then study Masson‘s Equation from ϕvData.

Dr. Indu Saxena, Rikkam Devi, Vijay Kumar

Abstract :

Magnetic Float Densitometer (MFD) measures the densities of very dilute as well as very concentrated solutions accurately. It has been seen experimentally that for the same solution, if the weight on the float is increased, corresponding current will decrease and vice versa. Using this technique, the densities (ρ?’s) of DMSODioxane solvent mixtures at different % compositions and those of solution (ρ?’s) of some tetraalkylammonium iodide, namely Et4NI, Pr4NI, Bu4NI & Pen4NI have been determined experimentally by MFD at 25? c. ?v vs √c curves were plotted for all the four electrolytes, are straight lines which indicates that the Masson’s equation applies in all the cases. the slope, Sv, is positive for each electrolyte in all the five solvent Mixtures (ranges from ? 10.75 to 46.60).However as the dielectric constant is slowly increased, the Sv values goes on decreasing for the electrolytes.