Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts

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• 作者：Parampaul K. Banipal ; Neha Aggarwal ; Tarlok S. Banipal
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2016
• 出版时间：June 9, 2016
• 年：2016
• 卷：61
• 期：6
• 页码：1992-2001
• 全文大小：541K
• 年卷期：0
• ISSN：1520-5134

文摘

The viscosities η of some monosaccharides, their methyl- and deoxy- derivatives, disaccharides, and trisaccharides have been measured in (0.25, 0.5, 1.0, and 1.25) mol·kg^–1 aqueous solutions of potassium phosphate (KH₂PO₄) and (0.5, 1.0, 1.5, and 2.0) mol·kg^–1 aqueous solutions of sodium phosphate (NaH₂PO₄) and ammonium phosphate (NH₄H₂PO₄) monobasic salts, and potassium phosphate (K₃PO₄) tribasic salt over the temperature range (288.15 to 318.15) K and at atmospheric pressure, P = 0.1 MPa. The viscosity data have been utilized to calculate the Jones–Dole viscosity B-coefficients and their corresponding coefficients of transfer, Δ_tB. The Δ_tB values were found to be positive and their magnitudes vary depending on the nature of solutes and cosolutes. The dB/dT coefficients and pair η_AB and triplet η_ABB interaction coefficients have also been calculated and discussed in terms of solute–solvent/cosolute interactions. The results have been compared in phosphate-based salts on the basis of the nature of the cation and anion.