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New topic of supercritical fluids: Local activity coefficients of supercritical solvent and cosolvent around solute
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10.1063/1.2838181
/content/aip/journal/jcp/128/10/10.1063/1.2838181
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/10/10.1063/1.2838181

Figures

Image of FIG. 1.
FIG. 1.

Phase diagram of a binary system at fixed temperature.

Image of FIG. 2.
FIG. 2.

Phase diagrams of (2) and acid(2) binary mixtures at . (a) ; and (▴) this work and (○) Ref. 35 and (b) acid—calculated from PR-EOS.

Image of Scheme 1.
Scheme 1.

Ground state and excited state of phenol blue.

Image of FIG. 3.
FIG. 3.

of phenol blue in SC at and different pressures; (●) this work and (○) Ref. 17.

Image of FIG. 4.
FIG. 4.

(Lambda-max) of phenol blue in the mixed solvents at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures.

Image of FIG. 5.
FIG. 5.

Local composition enhancement around phenol blue at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures.

Image of FIG. 6.
FIG. 6.

Dependence of of on pressure and composition of the mixture at .

Image of FIG. 7.
FIG. 7.

Activity coefficients of in the bulk phase at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures; the results are calculated from PR-EOS.

Image of FIG. 8.
FIG. 8.

Activity coefficients of the cosolvents in the bulk phase at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures; the results are calculated from PR-EOS.

Image of FIG. 9.
FIG. 9.

Local activity coefficient of around phenol blue at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures.

Image of FIG. 10.
FIG. 10.

Local activity coefficient of cosolvent around phenol blue at and different pressures. (a) in (2) mixtures and (b) in acid (2) mixtures.

Tables

Generic image for table
Table I.

Bubble point and critical point pressures of (2) and acid (2) systems at .

Generic image for table
Table II.

The , local composition enhancement, and local activity coefficients at and different pressures.

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/content/aip/journal/jcp/128/10/10.1063/1.2838181
2008-03-14
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: New topic of supercritical fluids: Local activity coefficients of supercritical solvent and cosolvent around solute
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/10/10.1063/1.2838181
10.1063/1.2838181
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