Partial molar volumes and viscous properties of glycine-aqueous urea solutions at 298.15 K

作者：Deosarkar S D^*; Ban A R; Tawde P D; Sawale R T

来源：Russian Journal of Physical Chemistry, 2015, 89(7): 1233-1237.

DOI：10.1134/S0036024415070080

• glycine
• partial molar volumes
• viscosity B-coefficients

Density (rho) and viscosity (eta) of glycine (c = 0.02-0.22 mol dm(-3)) in aqueous urea (c = 0.5, 1.5, and 3.0 mol dm(-3)) solutions were measured at 298.15 K. Experimental density data has been used to calculate apparent molar volumes (phi(v)) of glycine in aqueous and aqueous-urea solutions at 298.15 K. The dependence of apparent molar volumes on concentration of glycine was fitted to the Massons relation and apparent molar volume of glycine at infinite dilution (partial molar volume, phi (v) (0) ) was determined graphically. The partial molar volumes of transfer (Delta(tr)phi (v) (0) ) of glycine at infinite dilution from pure water to aqueous-urea solutions at 298.15 K were calculated and interpreted in terms of various interactions and structural fittings in studied solutions. The relative viscosity data has been analyzed by Jones-Dole relation and viscosity B-coefficients were determined graphically. Viscosity B-coefficient of transfer (Delta B) was also calculated and compared with Delta(tr)phi (v) (0) .

• 出版日期2015-7