Activity coefficients and conductivities of calcium nitrate in glucose/galactose–water mixtures at 298.15K

Zhuo, Kelei; Liu, Guanjie; Wang, Yaping; Ren, Qiuhe; Wang, Jianji

doi:10.1016/j.fluid.2007.05.025

Cited by 17 publications

(3 citation statements)

References 36 publications

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“…Morel and co-workers [42][43][44][45][46][47][48][49], Wang and co-workers [50][51][52][53][54][55][56][57][58][59][60][61], and Hernandez-Luis et al [62,63] used the transfer functions approach and reported a very comprehensive set of data for the interaction parameters of sugars with several electrolytes.…”

Section: Empirical Virial Expansionsmentioning

confidence: 99%

Empirical and theoretical models of equilibrium and non-equilibrium transition temperatures of supplemented phase diagrams in aqueous systems (IUPAC Technical Report)

Corti

Angell

Auffret

et al. 2010

Pure and Applied Chemistry

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This paper describes the main thermodynamic concepts related to the construction of supplemented phase (or state) diagrams (SPDs) for aqueous solutions containing vitrifying agents used in the cryo-and dehydro-preservation of natural (foods, seeds, etc.) and synthetic (pharmaceuticals) products. It also reviews the empirical and theoretical equations employed to predict equilibrium transitions (ice freezing, solute solubility) and non-equilibrium transitions (glass transition and the extrapolated freezing curve). The comparison with experimental results is restricted to carbohydrate aqueous solutions, because these are the most widely used cryoprotectant agents. The paper identifies the best standard procedure to determine the glass transition curve over the entire water-content scale, and how to determine the temperature and concentration of the maximally freeze-concentrated solution.

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Section: Empirical Virial Expansionsmentioning

confidence: 99%

Empirical and theoretical models of equilibrium and non-equilibrium transition temperatures of supplemented phase diagrams in aqueous systems (IUPAC Technical Report)

Corti

Angell

Auffret

et al. 2010

Pure and Applied Chemistry

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“…In spite of the weak metal-saccharide complexes formed, their interactions are selective. Still, their binding preferences, structural and stereochemical features and stabilities of the complexes formed are not well understood [9][10][11][12][13]. Aqueous solutions of sodium acetate are biologically and chemically important as these are widely used in molecular biology applications, purification and precipitation of nucleic acids, protein crystallization, staining of gels in protein gel electrophoresis, and HPLC.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium acetate on the volumetric behaviour of some mono-, di-, and tri-saccharides in aqueous solutions over temperature range (288.15 to 318.15)K

Banipal

Singh

Banipal

2010

The Journal of Chemical Thermodynamics

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Effect of sodium acetate on the volumetric behaviour of some mono-, di-, and tri-saccharides in aqueous solutions over temperature range (288.15 to 318.15) K a b s t r a c tThe standard partial molar volumes, V 2 at infinite dilution of eight monosaccharides [D(+)-xylose, D(À)-arabinose, D(À)-ribose, L(À)-sorbose, D(À)-fructose, D(+)-galactose, D(+)-glucose, and D(+)-mannose], six disaccharides [D(+)-cellobiose, sucrose, D(+)-melibiose, D(+)-lactose monohydrate, D(+)-trehalose dihydrate, and D(+)-maltose monohydrate] and two trisaccharides [D(+)-melizitose and D(+)-raffinose pentahydrate] (molalities of saccharides range from (0.03 to 0.12) mol Á kg À1 ) have been determined in water and in (0.5, 1.0, 2.0, and 3.0) mol Á kg À1 aqueous sodium acetate solutions at temperatures, T = (288. 15, 298.15, 308.15, and 318.15) K from density measurements using a vibrating-tube digital densimeter. From these results, corresponding standard partial molar volumes of transfer, D t V 2 have been determined for the transfer of various saccharides from water to aqueous solutions of sodium acetate. Positive values of D t V 2 were obtained for most of the saccharides, whose magnitude increase with the concentration of sodium acetate as well as temperature. However, negative D t V 2 values were observed for L(À)-sorbose, D(À)-fructose and D(+)-xylose at lower concentrations of co-solute. The negative magnitude of D t V 2 values decrease with rise of temperature from (288.15 to 318.15) K. Pair and higher order volumetric interaction coefficients have been determined by using McMillan-Mayer theory. Partial molar expansion coefficients, ð@V 2 =@TÞ p and the second derivatives ð@ 2 V 2 =@T 2 Þ p have also been estimated. These parameters have been utilized to understand various mixing effects in aqueous solutions due to the interactions between solute (saccharide) and co-solute (sodium acetate).

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“…The dominant conformation of glucose is 1e2e3e4e (e stands for equatorial hydroxyl group), whereas that of galactose is 1e2e3e4a (a stands for axial hydroxyl group). The ability of glucose fitting into the water structure is more than galactose [36]. For a given electrolyte (CaCl 2 ), the g ES value for glucose is larger than that for galactose.…”

Section: Standard Transfer Gibbs Free Energymentioning

confidence: 92%

Activity coefficients of CaCl2 in (maltose+water) and (lactose+water) mixtures at 298.15K

Zhuo

Liu

Zhang

et al. 2008

The Journal of Chemical Thermodynamics

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Activity coefficients and conductivities of calcium nitrate in glucose/galactose–water mixtures at 298.15K

Cited by 17 publications

References 36 publications

Empirical and theoretical models of equilibrium and non-equilibrium transition temperatures of supplemented phase diagrams in aqueous systems (IUPAC Technical Report)

Empirical and theoretical models of equilibrium and non-equilibrium transition temperatures of supplemented phase diagrams in aqueous systems (IUPAC Technical Report)

Effect of sodium acetate on the volumetric behaviour of some mono-, di-, and tri-saccharides in aqueous solutions over temperature range (288.15 to 318.15)K

Activity coefficients of CaCl2 in (maltose+water) and (lactose+water) mixtures at 298.15K

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