Determination of densities, apparent molar volume and apparent molar volume of transfer of some R4NI salt solutions in NMF-DMSO mixtures using magnetic float densitometer and then to study of ionic Interaction at 303.15 K

Abstract

Binary solvent mixtures of different (%) compositions have been prepared at 303.15 K using tetra alkyl ammonium iodides (R₄NI) of 0.02 M to 0.14 M to investigate inter ionic interaction, ion-ion and ion solvent interactions in NMF-DMSO solvent mixture containing large cations of tetra alkyl ammonium iodides (R₄NI). The densities (ρ₀) of binary solvent mixtures and salt solutions have been measured by magnetic float densitometer. The apparent molar volume at infinite dilution ф_v⁰, in the solvent mixtures, have been utilized to estimate the apparent molar volumes of transfer ∆ф_v⁰ (tr), for various tetra alkyl ammonium iodide salts (R₄NI) from NMF-DMSO mixtures. The observed trend and variations of dielectric constant and density with different (%) composition of NMF – DMSO provide useful information about the structural interactions.