Self-diffusion in compressed supercritical toluene-d8

Baker, Ellen S.; Brown, Donald R.; Lamb, D. M.; Jonáš, J.

doi:10.1021/je00040a002

Cited by 8 publications

(1 citation statement)

References 5 publications

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“…We next attempted to use the same values of β and γ given above to predict self-diffusion coefficients and data on diffusion in supercritical carbon dioxide, the solvent that is used most extensively. Figure 5 shows our predictions of the data available on the self-diffusion coefficients of carbon dioxide (Chen, 1983;Takahashi and Hiroji, 1966), ethylene (Arends et al, 1981;Baker et al, 1984), toluene (Baker et al, 1985), and chlorotrifluoromethane (Harris, 1978). The predictions, with no parameters adjusted from the data, are excellent, with an average absolute error of 3.64%.…”

Section: Resultsmentioning

confidence: 94%

Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

Eaton

Akgerman

1997

Ind. Eng. Chem. Res.

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A predictive equation, based on the rough-hard-sphere theory, was developed for the determination of infinite-dilution molecular diffusion coefficients in supercritical fluids. The equation parameters were determined from molecular dynamics simulations and from experimental data on 1-octene diffusion in supercritical ethane, propane, and hexane over a wide range of temperatures and pressures for supercritical fluid densities in the range of 69.9-500.2 kg/m 3 . An extensive database on diffusion in supercritical fluids was collected through the literature in order to evaluate the proposed equation and to determine the accuracy of the predictions with no additional parameter adjustment. The predictions were very good, with an average absolute deviation of 15.08% over 1548 data points. For systems where actual data on the critical constants were available, the average error of the predictions reduces to 9.61% over 939 points.

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Section: Resultsmentioning

confidence: 94%

Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

Eaton

Akgerman

1997

Ind. Eng. Chem. Res.

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Reaction chemistries in supercritical fluid solutions

Yonker¹,

Wallen²,

Linehan³

1998

J. Micro. Sep.

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Translational Diffusion of a Transient Charge‐Separated Species in Carbon Dioxide and Trifluoromethane Studied by the Transient Grating Method

Kanda¹,

Kimura²,

Terazima³

et al. 1996

Ber Bunsenges Phys Chem

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By means of the transient grating method, we have measured the translational diffusion constant of a transient charge-separated species created by the photo-isomerization of l', 3', 3'-trimethy1-6-nitrospiro[2H-l -benzopyran-2,2'-indoline] in carbon dioxide and trifluoromethane from pr = 0.8 to 2.0, where pr is the reduced density by the critical density of the solvent. It has been revealed that the effect of the charge-separation on the diffusion constant is small in these fluids due to the large molecular size of the transient molecule. The viscosity dependence of the diffusion constant is well simulated by an empirical equation which also works well for benzene and naphthalene.

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Self-diffusion in compressed supercritical toluene-d8

Cited by 8 publications

References 5 publications

Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

Reaction chemistries in supercritical fluid solutions

Translational Diffusion of a Transient Charge‐Separated Species in Carbon Dioxide and Trifluoromethane Studied by the Transient Grating Method

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