Volumetric and viscometric studies of -alanine in water and ammonia solution at 293- 313K: structure making and breaking effect

Abstract

The physicochemical properties of solute in solutions provide valuable information on solute –<br />solvent, solute – solute and solvent – solvent interactions. The intermolecular forces between the<br />liquids molecules and solvent molecules affect the viscosity of the solution. Information regarding<br />inter and intra molecular interactions can be obtained from volumetric, and viscometric data in a<br />solute solvent system. This study reports the volumetric and viscometric properties of solution of :-<br />alanine at the concentration range of 0.05 - 0.5 mol dm-3 in water and liquid ammonia at temperature<br />range of 293 - 313K. Apparent molar volume at infinite dilution ( o<br />v <br />) was estimated from the least<br />square fit of v<br /> vs concentration. Viscosity coefficients A and B were calculated from the viscosity<br />data Jones–Dole equation. Viscosity coefficients A and B were calculated from the viscosity data<br />Jones–Dole equation. The activation parameters for viscous flow #<br />1<br />#<br />2<br />#<br /> μ1 , μ , S and #<br />1 H were<br />also estimated using Eyring equation. The data are explained vis-à-vis structure making or breaking<br />effect of : - Alanine in the solvents under conditions of investigation.