2016
DOI: 10.1021/acs.jced.5b00845
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Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts

Abstract: 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 … Show more

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Cited by 16 publications
(11 citation statements)
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“…In most of the solutes (except for Raf), the Δ t K ° s,2 values in various salts follow the order NH 4 H 2 PO 4 > K 3 PO 4 > NaH 2 PO 4 > KH 2 PO 4 > CH 3 COONa (organic salt), indicating that phosphate anions undergo higher hydration as compared to acetate anions . The Δ t K ° s,2 results are in line of volumetric, , viscometric, and calorimetric studies that saccharides and their derivatives act as structure makers in mixed aqueous solutions.…”
Section: Resultssupporting
confidence: 76%
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“…In most of the solutes (except for Raf), the Δ t K ° s,2 values in various salts follow the order NH 4 H 2 PO 4 > K 3 PO 4 > NaH 2 PO 4 > KH 2 PO 4 > CH 3 COONa (organic salt), indicating that phosphate anions undergo higher hydration as compared to acetate anions . The Δ t K ° s,2 results are in line of volumetric, , viscometric, and calorimetric studies that saccharides and their derivatives act as structure makers in mixed aqueous solutions.…”
Section: Resultssupporting
confidence: 76%
“…These results indicate that phosphate salts enhance the overall structural order due to the hydrophilic–ionic type of interactions between polar sites of the saccharide molecules and ions of the salts. The volumetric and viscometric properties also suggest that the saccharides and their derivatives behave as structure makers in mixed aqueous solvent. These studies also support the view of higher structure-making nature of K 3 PO 4 due to more hydration of triply charged PO 4 3– anions than singly charged H 2 PO 4 – anions.…”
Section: Resultsmentioning
confidence: 99%
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“…where S S * is the experimental slope (in cm 3 kg mol -2 ). The standard partial molar volume of the saccharide, V 0 F;S , characterizes the solute-solvent interactions since solute-solute interactions are negligible at infinite dilutions [41].…”
Section: Standard Partial Molar Volumesmentioning
confidence: 99%
“…Although this parameter depends slightly on temperature, 59 we disregard this dependence, as an appropriate activation energy is lower (by at least an order of magnitude) than the enthalpy characterizing the effect of T on χ 13 (see Fig. S-3, † where experimental data 60 on aqueous solutions of glucose and sucrose are presented).…”
Section: Swelling Of Tr Gels In Solutions Of Additivesmentioning
confidence: 99%