Artículo
Empirical viscous coefficients of dilute solutions of tetraethylene glycol dimethyl ether in 2-propanol and in 2-butanol at different temperatures
Aznarez, Silvia; Amid, Adrián; Ferreyra de Ruiz Holgado, Mercedes Marta Elsa; Arancibia, Eleuterio Luis
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Fecha de publicación:
11/2004
Editorial:
Elsevier Science
Revista:
Journal of Molecular Liquids
ISSN:
0167-7322
e-ISSN:
1873-3166
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper reports experimental viscosities and densities of binary mixtures containing tetraethylene glycol dimethyl ether+(2-propanol, 2-butanol) at four different temperatures (288.15, 298.15, 308.15 and 318.15 K), over the mole fraction (x) range of tetraethylene glycol dimethyl ether between 0 V x V 0.1 and at atmospheric pressure. The empirical coefficients (bG, cG and DG1,2*0) were determined from the viscosity values of the binary mixtures in the dilute zone of tetraethylene glycol dimethyl ether, using the Tamamushi – Isono empirical relationship between the thermodynamic function, DG1,2*0, with the mole fraction of tetraethylene glycol dimethyl ether (x) at a particular temperature. The Jones –Dole coefficient (B) was calculated in a graphical way. Both contributions, the energetic and the volumetric ones, to coefficient (B) were obtained. A comparative study of the Jones –Dole coefficient B and the coefficient bG of the solutions of tetraethylene glycol dimethyl ether in 2-alkanol with tetraethylene glycol dimethyl ether in 1-alkanol data, obtained from literature, was carried out. The results are discussed qualitatively using the rate process Eyring theory, applied to viscous flow.
Palabras clave:
VISCOSITY
,
DENSITY
,
TETRAETHYLENEGLYCOL DIMETHYL ETHER
,
2-PROPANOL
,
2-BUTANOL
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Colecciones
Articulos(INQUINOA)
Articulos de INST.DE QUIMICA DEL NOROESTE
Articulos de INST.DE QUIMICA DEL NOROESTE
Citación
Aznarez, Silvia; Amid, Adrián; Ferreyra de Ruiz Holgado, Mercedes Marta Elsa; Arancibia, Eleuterio Luis; Empirical viscous coefficients of dilute solutions of tetraethylene glycol dimethyl ether in 2-propanol and in 2-butanol at different temperatures; Elsevier Science; Journal of Molecular Liquids; 115; 2-3; 11-2004; 69-74
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