Journal of Chemical and Engineering Data, Vol.58, No.11, 2970-2978, 2013
Densities and Viscosities of Erythritol, Xylitol, and Mannitol in L-ascorbic Acid Aqueous Solutions at T = (293.15 to 323.15) K
The densities and viscosities of ternary solutions (erythritol/xylitol/mannitol + L-ascorbic acid + water) and binary solutions (erythritol/xylitol/mannitol + water), were measured under atmospheric pressure and the temperature range of (293.15 to 323.15) K. The apparent molar volumes (V-phi,), the limiting partial molar volumes (V-phi(0)) and the limiting partial molar volumes of transfer (Delta V-tr(phi)0) were calculated through densities, respectively. Guimaraes equation and extended Jones-Dole equation were applied to correlate the densities and viscosities of erythritol/xylitol/mannitol in L-ascorbic acid aqueous solutions, respectively. The free energy of activation per mole of solvent (Delta mu(0#)(1)) and solute (Delta mu(0#)(2)) were obtained through the viscosity B-coefficients. These significant parameters are helpful to understand the interactions in sugar alcohols + L-ascorbic acid + water ternary solutions.