Artículo
Abstract:
The solubilities of I2(s) and CHI3(s) in near-critical fluid CHF3 have been determined with the high-pressure spectrophotometric technique and with the sampling and analytical procedure described previously. Isothermal-solubility measurements were carried out under subcritical conditions in the dense liquid phase at the temperature T = (293.62 ± 0.02) K for both solutes and under supercritical conditions at T = (303.80 ± 0.02) K for CHI3 and at T = (308.26 ± 0.01) K for both solutes; isobaric runs were done for the two solutes at a pressure of (8.008 ± 0.002) MPa. As expected, solubilities showed a strong dependence on p and T close to the thermodynamic state where the compressibility or thermal expansivity of the solvent passes, respectively, through a maximum. It is observed that I2 is almost ten times more soluble than CHI3 in near-critical CHF3. The results obtained in all the studies of this series are compared in terms of enhancement factors which eliminate the influence of the vapour pressure of the solid solute upon the observed solubility. A discussion of the observed qualitative features and their relation to molecular interactions is attempted. © 1994 Academic Press Ltd.
Registro:
| Documento: | Artículo |
| Título: | Solubility of solids in near-critical fluids IV. CHI3 and I2 in trifluoromethane |
| Autor: | Marceca, E.; Fernández-Prini, R. |
| Filiación: | Instituto de Química Física de Materiales, Ambiente y Energia, Facultad de Ciencias Exactas y Naturctfes, Universidad de Buenos Aires, Ciudad Universitaria Pabellón II, 1428-Capital Federal, Argentina Derpartamento Quimica de Reactores, Comisión Nacional de Energia Atómica, Av. Libertado 8250, 1429-Capital Federal, Argentina |
| Año: | 1994 |
| Volumen: | 26 |
| Número: | 6 |
| Página de inicio: | 651 |
| Página de fin: | 661 |
| DOI: | http://dx.doi.org/10.1006/jcht.1994.1075 |
| Título revista: | The Journal of Chemical Thermodynamics |
| Título revista abreviado: | J Chem Thermodyn |
| ISSN: | 00219614 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219614_v26_n6_p651_Marceca |
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Citas:
---------- APA ----------
Marceca, E. & Fernández-Prini, R. (1994) . Solubility of solids in near-critical fluids IV. CHI3 and I2 in trifluoromethane. The Journal of Chemical Thermodynamics, 26(6), 651-661.http://dx.doi.org/10.1006/jcht.1994.1075
---------- CHICAGO ----------
Marceca, E., Fernández-Prini, R. "Solubility of solids in near-critical fluids IV. CHI3 and I2 in trifluoromethane" . The Journal of Chemical Thermodynamics 26, no. 6 (1994) : 651-661.http://dx.doi.org/10.1006/jcht.1994.1075
---------- MLA ----------
Marceca, E., Fernández-Prini, R. "Solubility of solids in near-critical fluids IV. CHI3 and I2 in trifluoromethane" . The Journal of Chemical Thermodynamics, vol. 26, no. 6, 1994, pp. 651-661.http://dx.doi.org/10.1006/jcht.1994.1075
---------- VANCOUVER ----------
Marceca, E., Fernández-Prini, R. Solubility of solids in near-critical fluids IV. CHI3 and I2 in trifluoromethane. J Chem Thermodyn. 1994;26(6):651-661.http://dx.doi.org/10.1006/jcht.1994.1075
