Apparent Molar Volumes of Some Sodium Sulfonamides in Water at Several Molalities and Temperatures |
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| Authors: | Daniel R Delgado Edgar F Vargas Fleming Mart��nez |
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| Institution: | 1. Grupo de Investigaciones Farmac??utico-Fisicoqu??micas, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, A.A., 14490, Bogot?? D.C., Colombia
2. Laboratorio de Termodin??mica de Soluciones, Departamento de Qu??mica, Facultad de Ciencias, Universidad de los Andes, Bogot?? D.C., Colombia
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| Abstract: | In this article, measured densities of aqueous solutions of sodium sulfadiazine, sodium sulfamerazine and sodium sulfamethazine are reported as a function of molality from 0.0500 to 0.5000 mol?kg?1 and as a function of temperature at (278.15, 283.15, 288.15, 293.15, 298.15, 303.15, 308.15 and 313.15) K. The apparent molar volumes, partial molar volumes at infinite dilution and partial molar expansibilities were calculated. The dependence of these properties upon temperature is shown. The results are interpreted in terms of solute-solvent interactions. |
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