Densities and Viscosities of Sugar Alcohols in Vitamin B6 Aqueous Solutions at (293.15 to 323.15) K

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• 作者：Xiaohui Xu ; Chunying Zhu ; Youguang Ma
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：June 11, 2015
• 年：2015
• 卷：60
• 期：6
• 页码：1535-1543
• 全文大小：299K
• ISSN：1520-5134

文摘

The densities and viscosities of ternary solutions (erythritol/xylitol/sorbitol/maltitol + vitamin B₆ + water) were measured at 293.15 K, 303.15 K, 313.15 K, 323.15 K and atmospheric pressure. The experimental densities were correlated in terms of the Guimar茫es equation, and the apparent molar volumes (V_蠁), the limiting partial molar volumes (V_蠁⁰), and the limiting partial molar volumes of transfer (螖_trV_蠁⁰) were calculated through the densities. The experimental viscosities were correlated according to the extended Jones鈥揇ole equation to obtain the viscosity B coefficients, and the free energies of activation per mole of solute (螖渭₂^{0鈮?/sup>) and per mole of solvent (螖渭₁0鈮?/sup>) were calculated. These obtained thermodynamical properties and transport properties of multicomponents are useful to understand the structural change and strong solute鈥搒olvent interaction in the ternary solutions (sugar alcohols + vitamin B₆ + water).}