No abstract

The apparent molar volume (ϕV) and viscosity B-coefficient of N-methyl glycine of 0.01 M, 0.02 M and 0.03 M aqueous solutions have been estimated in presence of paracetamol at three temperatures namely 298.15 K, 303.15 K and 308.15 K from physicochemical study such as density (ρ) and viscosity (η) and refractive index measurements and 1 H NMR spectroscopy. The volumetric study was employed to evaluate limiting apparent molar volumes (ϕV 0) and experimental slopes (SV*) by using Masson equation for explaining solute-solvent and solute-solute interactions, respectively. The nature of group interactions between the solute, solvent and co-solute have been examined from limiting apparent molar volumes of transfer (∆ϕV 0) values. The viscosity data were employed to determine viscosity A and B coefficients from Jones-Dole equation and the resulting parameters were used to examine the solutesolute and solute-solvent interactions in the solutions. Molar refraction values calculated from refractive indices by applying Lorentz-Lorenz equation were used to depict the intermolecular interactions between N-methyl glycine and paracetamol in their aqueous solution. However, the 1 H NMR spectroscopy supports the existence of diverse interactions concretely.