Densities of some binary liquid mixtures. Part II

Griffiths, V. S.

doi:10.1039/jr9540000860

Cited by 25 publications

(8 citation statements)

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“…[The values of Vs are also shown in Table I, and a comparison between our data and those of other workers is shown in Figure 1, where deviations of the V6 values from the parabola 4 x(1 -x) are plotted.] There is excellent agreement between the present measurements and those of Gibson (11), while the measurements of Griffiths (12) scatter badly and are obviously unreliable.…”

Section: Resultssupporting

confidence: 60%

“…Accurate density-composition data were required for the analysis of liquid and vapor samples from the equilibrium still. The two sets of published measurements (11,12) differ significantly, and it was therefore thought desirable to repeat the measurements. (Since these measurements were made, it has been widely recognized that it is more accurate and simpler experimentally to measure Vs directly and to deduce therefrom the densities of the mixtures.…”

Section: Methodsmentioning

confidence: 99%

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Isothermal liquid-vapor equilibriums for system methanol-water

McGlashan¹,

Williamson²

1976

J. Chem. Eng. Data

136

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Gibbs free energies of mixing of methanol-water mixtures in the range of 35-65 °C and densities of the mixtures at 25 °C are measured. The enthalpies and free energies of mixing are thermodynamically consistent within the limits to which the gas imperfections are known. Earlier liquidvapor equilibrium measurements are reanalyzed, using only total pressure and liquid composition data, and with corrections for gas imperfections. Of the previously reported free energies of mixing, only the single set of transpiration measurements at 25 °C by Butler et al. is to any degree consistent with our data.

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Section: Resultssupporting

confidence: 60%

Section: Methodsmentioning

confidence: 99%

Isothermal liquid-vapor equilibriums for system methanol-water

McGlashan¹,

Williamson²

1976

J. Chem. Eng. Data

136

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“…Dynamical quantities for the time correlation functions were output every 7 fs and the configuration of the system was output every 70 fs. The densities, [39][40][41] volume fractions, and number of molecules in each simulation are listed in Table I.…”

Section: B Molecular Dynamics Simulationsmentioning

confidence: 99%

Spectroscopy and dynamics of mixtures of water with acetone, acetonitrile, and methanol

Venables

Schmuttenmaer

2000

The Journal of Chemical Physics

204

212

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Binary mixtures of water with acetone, acetonitrile, and methanol over their entire range of compositions have been studied spectroscopically and by using molecular dynamics ͑MD͒ simulations. We report absorption coefficients and indices of refraction over a frequency range from 3 to 55 cm Ϫ1 , and from 400 to 1200 cm Ϫ1. The far-infrared absorption of the mixtures is substantially less than that for ideal mixtures, and Debye time constants calculated from the spectra are longer for the real than for the ideal mixtures. Significant composition dependence is observed in the high frequency librational spectra of the mixtures, and is reproduced by the MD simulations. Single dipole and angular velocity spectra are also reported, as are detailed changes in the hydrogen bonding environment in the mixtures. There is a loss of tetrahedral water structure on mixing, yet water molecules have a strong tendency to aggregate, especially in the acetone and acetonitrile mixtures. Spatial distribution functions are reported for the acetone/water system.

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“…Such behaviour is shown, for example, by the partial molar volumes in aqueous solutions of ethanol and of 1,4-dioxan 10 (Figure 4.4). The partial molar volumes of Schott 11 have improbable extrema. The partial molar volumes of Schott 11 have improbable extrema.…”

Section: Tests For Consistencymentioning

confidence: 99%