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Density dependences of long-range fluctuations and short-range correlation lengths of and in supercritical states
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10.1063/1.2178807
/content/aip/journal/jcp/124/12/10.1063/1.2178807
http://aip.metastore.ingenta.com/content/aip/journal/jcp/124/12/10.1063/1.2178807

Figures

Image of FIG. 1.
FIG. 1.

Relation of absorption factor and fluid density for supercritical measured by a new apparatus (Ref. 21) by use of photodiode installed in direct-beam stopper.

Image of FIG. 2.
FIG. 2.

SAXS intensities of supercritical at (a) for higher-density range than the density corresponding to the ridge and (b) for the lower range. Upward from the bottom of the graphs, measured states in (a) and (b) are at , 1.34, 1.23, 1.15, and 0.98 and at , 0.44, 0.56, 0.68, and 0.91, respectively.

Image of FIG. 3.
FIG. 3.

The Ornstein-Zernike plots of supercritical at (a) for higher-density range than the density corresponding to the ridge and (b) for the lower range. The states are the same as those shown in Fig. 2.

Image of FIG. 4.
FIG. 4.

The density fluctuations of supercritical as a function of density. 엯: experimental results,—: values calculated by EOS of Penoncello et al. (Ref. 25), -∙-∙-: values calculated by EOS of Platzer et al. (Ref. 30), -∙∙-: values calculated by EOS of Rubio et al. (Ref. 31), and ----: values calculated by EOS of Penoncello et al. (Ref. 32).

Image of FIG. 5.
FIG. 5.

The density fluctuations vs reduced density at . ∎: , ☉: , ◇: (Ref. 20), and 엯: water (Ref. 20).

Image of FIG. 6.
FIG. 6.

The reduced correlation lengths vs reduced density at . ∎: , ☉: , ◇: (Ref. 20), and 엯: water (Ref. 20).

Image of FIG. 7.
FIG. 7.

The reduced short-range correlation length for and vs reduced density at . The symbols ∎ and ☉ refer to and , respectively.

Tables

Generic image for table
Table I.

Results of the present SAXS measurements for .

Generic image for table
Table II.

Results of the present SAXS measurements for .

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/content/aip/journal/jcp/124/12/10.1063/1.2178807
2006-03-30
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Density dependences of long-range fluctuations and short-range correlation lengths of CHF3 and CH2F2 in supercritical states
http://aip.metastore.ingenta.com/content/aip/journal/jcp/124/12/10.1063/1.2178807
10.1063/1.2178807
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