Kinematic viscosity and refractive index of aqueous solutions of ethanol and glycerol / Ramon Moreira in Industrial & engineering chemistry research, Vol. 48 N°4 (Février 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2157–2161 Titre : Kinematic viscosity and refractive index of aqueous solutions of ethanol and glycerol Type de document : texte imprimé Auteurs : Ramon Moreira, Auteur ; Francisco Chenlo, Auteur ; Damien LeGall, Auteur Année de publication : 2009 Article en page(s) : p. 2157–2161 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Kinematic viscosity Glycerol/ethanol/water Correlations Résumé : The kinematic viscosity of ternary solutions of glycerol/ethanol/water was determined at several temperatures (from 20 to 45 °C) and different molar fractions of the components (to 0.75 for ethanol and 0.60 for glycerol) covering a wide range of experimental conditions. A capillary viscometer was used for the measurements. The experimental kinematic viscosity data showed nonideal behavior. Modeling was based on previously proposed correlations for aqueous ethanol solutions modified with an additional exponential term in which the influence of glycerol is taken into account. The final model reproduced the experimental kinematic viscosity data of glycerol/ethanol/water solutions as a function of concentration and temperature with average deviations of 4.6% in the tested range. Refractive indices (at 20 °C) of the ternary solutions were also determined, and a empirical model was proposed to evaluate this physical property with high accuracy. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801410d [article] Kinematic viscosity and refractive index of aqueous solutions of ethanol and glycerol [texte imprimé] / Ramon Moreira, Auteur ; Francisco Chenlo, Auteur ; Damien LeGall, Auteur . - 2009 . - p. 2157–2161. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2157–2161 Mots-clés : Kinematic viscosity Glycerol/ethanol/water Correlations Résumé : The kinematic viscosity of ternary solutions of glycerol/ethanol/water was determined at several temperatures (from 20 to 45 °C) and different molar fractions of the components (to 0.75 for ethanol and 0.60 for glycerol) covering a wide range of experimental conditions. A capillary viscometer was used for the measurements. The experimental kinematic viscosity data showed nonideal behavior. Modeling was based on previously proposed correlations for aqueous ethanol solutions modified with an additional exponential term in which the influence of glycerol is taken into account. The final model reproduced the experimental kinematic viscosity data of glycerol/ethanol/water solutions as a function of concentration and temperature with average deviations of 4.6% in the tested range. Refractive indices (at 20 °C) of the ternary solutions were also determined, and a empirical model was proposed to evaluate this physical property with high accuracy. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801410d

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