Viscosity of ternary mixtures. II. Water-tert-butyl alcohol-alkali halides

Palma, Marc; Morel, Jean‐Pierre

doi:10.1007/bf00648576

Cited by 13 publications

(6 citation statements)

References 16 publications

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“…It can be clearly seen that at a constant temperature, the density has increased with the increase of molality while at the same molality, the density decreased with the increase of temperature, thus the overall density changed regularly. In addition, comparison between the experimental density of the sodium iodide aqueous solution and the data reported in the literature at 298.15 K is presented in Figure , which has the same changing tendency and indicates that the data in this work are credible.…”

Section: Resultssupporting

confidence: 75%

Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

et al. 2020

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Densities of the binary systems (NaI + H2O) and (NaIO3 + H2O) were measured by an accurate Anton Paar Digital vibrating-tube densimeter at temperature intervals of 5 K ranging from 283.15 to 353.15 K at ambient pressure and molalities of sodium iodide and sodium iodate ranging from 0.16764 to 2.15208 and 0.02252 to 0.15952 mol kg–1, respectively. Based on the experimental density data of the binary systems (NaI + H2O) and (NaIO3 + H2O), thermal expansion coefficient (α) and apparent molar volume (V ϕ) are obtained using an empirical equation calculation, and the diagram for the relationship between temperature and molality was plotted. According to the Pitzer ion-interaction model of the apparent molar volume, Pitzer single salt parameters β(0)v M.X, β(1)v M.X, and Cv M.X and their correlation coefficients a i of the temperature-dependent equation f(i, p, T) = a 1 + a 2ln(T/298.15) + a 3(T – 298.15) + a 4/(620 – T) + a 5/(T – 227) (where T is the temperature in Kelvin and a i values are the correlation coefficients) for NaI and NaIO3 were first obtained by the least-squares method. The obtained apparent molar volumes agree well with the experimental values, and these results indicated that the single salt parameters and the temperature-dependent formula obtained in this work were reliable.

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Section: Resultssupporting

confidence: 75%

Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

et al. 2020

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“…In aqueous solutions the viscosity q and the urea self-diffusion coefficient Du have been measured for the urea mole fraction less than 0.10. The experimental results are summarised in Table 1. Viscosity of the solutions increases monotonously with increasing urea concentration and the results fit perfectly the concentration dependence of q reported previously [25].…”

Section: Aqueous Solutions Of Ureasupporting

confidence: 88%

“…1. Table 2 Viscosities, self-diffusion coefficients and hydrodynamic radii of urea in mixtures of water with I-propanol at 25 The dehydration effect is due to the nature of the solvent itself. It is observed, because the structure of water has been destroyed significantly by the presence of alcohol.…”

Section: Solutions Of Urea In Mixtures Of Water With 1-propanolmentioning

confidence: 99%

Solvation and association of urea in aqueous solutions and mixtures of water with 1‐propanol

Hawlicka

Grabowski

1994

Ber Bunsenges Phys Chem

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Self-diffusion coefficients of urea have been measured at 25.0"C in aqueous solutions and in mixtures of water with I-propanol, as a function of the urea concentration and of the mixed solvent composition. The hydrodynamic radius of urea has been calculated. It has been found that both in aqueous solutions as well as in 1-propanol-water mixtures dimers of urea, if they exist, do not play any role in the diffusion processes. Diffusion is, however, a collective process and motions of urea depend on the numbers of neighbours, therefore they are very sensitive on the structure of the solvent. The results have also confirmed the previous supposition that urea does not affect the water structure, but it does fit the water structure quite well. It has been also found that the solvation of urea is determined by the structure of the mixed solvent.

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“…We must point out that the same value is found for D l , whatever the ratio value r ; we shall adopt in the present calculations D,, = -0.035, which is obtained in the best conditions. The range of concentration studied to determine the D coefficients is of primary importance and has been discussed elsewhere (1). In fact, the problem is that of the independent determination of the various coefficients; it has been resolved in the case of B coefficient (9), and we intend to apply an extended form of this method in further work.…”

Section: Discussionmentioning

confidence: 99%

Viscosity of ternary mixtures. IV. Urea – tert-butyl alcohol – water at 25 °C

Palma¹,

Morel²

1981

Can. J. Chem.

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. Can. J. Chem. 59. 3248(1981). We have measured, at 25"C, the viscosities of urea and tert-butyl alcohol ternary aqueous solutions for total concentrations reaching about 4 M and various ratios of the solutes. We have also determined B coefficients of the Jones-Dole law for urea in water-tert-butyl alcohol mixtures and for tert-butyl alcohol in water-urea mixtures. The results can be fitted in the form: where q, is the viscosity relative to water and subscripts 1 and 2 characterise the two solutes. B, and B, are determined in water and the additional D parameters appear as pair-interaction contributions of the solutes to the viscosity of the system. Some relations are established and verified between the previous parameters and the B coefficients of I and 2 determined, respectively, in the aqueous mixtures of 2 and I .

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Viscosity of ternary mixtures. II. Water-tert-butyl alcohol-alkali halides

Cited by 13 publications

References 16 publications

Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

Solvation and association of urea in aqueous solutions and mixtures of water with 1‐propanol

Viscosity of ternary mixtures. IV. Urea – tert-butyl alcohol – water at 25 °C

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Viscosity of ternary mixtures. II. Water-tert-butyl alcohol-alkali halides

Cited by 13 publications

References 16 publications

Apparent Molar Volumes for the Binary Systems (NaI + H2O) and (NaIO3 + H2O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

Apparent Molar Volumes for the Binary Systems (NaI + H2O) and (NaIO3 + H2O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

Solvation and association of urea in aqueous solutions and mixtures of water with 1‐propanol

Viscosity of ternary mixtures. IV. Urea – tert-butyl alcohol – water at 25 °C

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Product

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Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure

Apparent Molar Volumes for the Binary Systems (NaI + H₂O) and (NaIO₃ + H₂O) at Temperatures from 283.15 to 353.15 K at Ambient Pressure