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vol.25 issue6Ionic Interaction Parameters of Concentrated Aqueous Solutions of the Ionic Liquid 1-Ethyl-3-Methyl-Imidazolium Trifluoromethanesulfonate at Various TemperaturesEvaluation of Antimalarial and Cytotoxic Activity of Styrylquinolines obtained from 8-Hydroxyquinaldine with Aromatic Aldehydes author indexsubject indexarticles search
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Información tecnológica

On-line version ISSN 0718-0764


PAEZ, Manuel S; VERGARA, María K  and  PEREZ, Omar A. Molecular Interactions of the Mixture of [Bmim] [TfO] + Water from Viscosity Data. Inf. tecnol. [online]. 2014, vol.25, n.6, pp.85-90. ISSN 0718-0764.

Flow times of the binary mixture ionic liquid 1-Butyl-3-methyl imidazolium trifluoromethanesulfonate + water were determined in the temperature range 283.15 to 318.15 K using an Anton Paar (AMVn) micro-viscometer. The absolute viscosity, the coefficients A, B and D Jones and Dole model for the viscosity, and the activation parameters of viscous flow were calculated from the data. This was done to obtain information about the interactions present in solution. The http://fbpe/img/infotec/v25n6/art11-1.jpgB/http://fbpe/img/infotec/v25n6/art11-1.jpgT values of the binary mixture are negative, indicating that the ion-solvent interactions are not favored and the forming effect exerted by the non-polar part of the ionic liquid on the water structure is favored. The viscous flow process was endothermic and showed agreement with the sign given by Raoult's law.

Keywords : viscosity; molecular interactions; activation parameters; ionic liquid; Bmim; TfO.

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