Isopiestic studies on the systems{NaCl+BaCl2+mannitol( sat)( aq ) } and{KCl+glycine+mannitol( sat )( aq) } at the temperature 298.15 K

Hu, Yu‐Feng; Liu, Y.-H.; Sun, S.-P.

doi:10.1006/jcht.1999.0597

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…Properties of the multicomponent system are then frequently predicted by simple, linear chemical "mixing rules". Such rules, which have been well established experimentally, include those of Harned, Lietzke & Stoughton, and others for activity coefficients, [3][4][5] Robinson and Stokes for vapor pressure, 3 Zdanovskii for isopiestic molalities and solubilities, 6 Young's pro-rata additivity rule for densities and heat capacities, [7][8][9] and Young's "cross-square" rule for enthalpies. 10 It should be noted that these linear rules operate at constant total concentration, ionic strength, or water activity.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System

Königsberger

Szilágyi

et al. 2008

J. Chem. Eng. Data

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No reliable model for the prediction of densities has been reported for the title system. Since this is partly due to conflicting experimental data available in the literature, densities in the title system have been measured by high-precision vibrating-tube densimetry over wide concentration ranges. Measurements comprise binary (single electrolyte) and mixed (ternary) acidic solutions of titanyl sulfate at (25 and 50) °C as well as binary, ternary, and quaternary mixtures containing iron(II) sulfate at 25 °C. We have found that a pro-rata additivity rule for densities applies to a series of aqueous metal sulfate + sulfuric acid mixtures at constant total sulfate concentration, based on hypothetical densities in the supersaturated concentration ranges of the binary metal sulfate subsystems. These hypothetical densities can be readily obtained by extrapolation of the properties of mixed solutions. When included in Masson-type density correlations for the binary metal sulfate systems, the resulting model resolves the reported inconsistencies in density predictions for the FeSO 4 + H 2 SO 4 + H 2 O system. This is the first density model that includes TiOSO 4 as a component.

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Section: Introductionmentioning

confidence: 99%

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System

Königsberger

Szilágyi

et al. 2008

J. Chem. Eng. Data

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“…Relatively few studies have been made, however, which contribute thermodynamic data on these systems, especially at high concentrations. Among these, the more notable are those of Morel et al, − Wang et al, − Hu et al., , and Gregory and McTigue . Of these studies, only one 8 (despite the importance of fructose) gives data for HCl + d -fructose + H 2 O system.…”

Section: Introductionmentioning

confidence: 99%

Activity Coefficients of NaCl in Fructose + Water at 298.15 K

2004

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The mean ionic activity coefficients of NaCl in fructose + water mixtures were experimentally determined at 298.15 K from electromotive force measurements of the following electrochemical cell containing two ion-selective electrodes (ISE): Na−ISE|NaCl(m),fructose(w),H2O(1−w)|Cl−ISE. The molality (m) varied between (0.005 and 3.5) mol kg-1, while the mass fraction of fructose in the mixture (w) was 0, 0.1, 0.2, 0.3, and 0.4. The emf values were analyzed using different models which employed extended Debye−Hückel equations and those of Pitzer, Scatchard, and Sen for describing the variations in activity coefficients with concentration. Results obtained with the different models were in good agreement. The interaction parameters of each model were comparatively analyzed with those of other similar systems reported in the literature, and discussion is presented concerning their variation with properties of the medium, particularly the dielectric constant. The free energy of transfer of the NaCl from the water to the mixed solvent was determined and its variation with the composition of the solvent is discussed in terms of ion−ion and ion−solvent interactions. Also determined was the primary hydration number of the NaCl, which was compared with results from the literature. Finally, the parameters of interaction g ij and salting constant k s were estimated.

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“…Studies from literature frequently indicated the diverse challenges related to telemedicine technology diffusion universally which include lack of infrastructural resources, poor telecommunication infrastructures such as bandwidth, and the effect of the Internet (15)(16)(17) . Medical officer M5 said that:…”

Section: Technology Availabilitymentioning

confidence: 99%

Telemedicine system: service adoption and implementation issues in Nigeria

Adenuga¹,

Iahad²,

Miskon³

2020

IJST

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Objectives: The study seeks to understand why there is a wide gap in the telemedicine service implementation and adoption in Nigeria, the existing evidence shows that less than 5% of such hospital information systems has been utilized in a country of more than 180 million people. Methodology: We applied in-depth semi-structured interviews approach such that the opinions of clinicians were sampled at two government hospitals in Nigeria to identify other principal users' attributes affecting telemedicine implementation adoption from clinicians' perspectives. The combination of the factors from literature and thematic analysis led to the formulation of telemedicine service adoption framework that highlights telemedicine implementation issues. Findings: The outcome of the study led to the establishment of a telemedicine implementation framework and recommendations for a feasible and sustainable telemedicine service adoption for clinicians in Nigeria.

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Isopiestic studies on the systems{NaCl+BaCl2+mannitol( sat)( aq ) } and{KCl+glycine+mannitol( sat )( aq) } at the temperature 298.15 K

Cited by 7 publications

References 13 publications

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System

Activity Coefficients of NaCl in Fructose + Water at 298.15 K

Telemedicine system: service adoption and implementation issues in Nigeria

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Isopiestic studies on the systems{NaCl+BaCl2+mannitol( sat)( aq ) } and{KCl+glycine+mannitol( sat )( aq) } at the temperature 298.15 K

Cited by 7 publications

References 13 publications

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO4 + FeSO4 + H2SO4 + H2O System

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO4 + FeSO4 + H2SO4 + H2O System

Activity Coefficients of NaCl in Fructose + Water at 298.15 K

Telemedicine system: service adoption and implementation issues in Nigeria

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Product

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Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System

Measurement and Prediction of Physicochemical Properties of Liquors Relevant to the Sulfate Process for Titania Production. 1. Densities in the TiOSO₄ + FeSO₄ + H₂SO₄ + H₂O System