Autor: Graciela C. Pedrosa, Miguel A. Postigo, Ines L. Acevedo, Miguel Katz, S. Aznarez
Rok vydání: 1998
Předmět:
Zdroj: Journal of Solution Chemistry. 27:949-964
ISSN: 0095-9782
Popis: Excess molar volumes and excess refractive indexes of the n-hexanol + ethanenitrile + dichloromethane system and the three corresponding binary mixtures have been determined at 25°C, by measuring densities and refractive indexes. Different expressions exist in the literature to predict these excess properties from binary data. The empirical correlation of Cibulka is shown to be the best in this system. An estimation of excess molar volumes is also evaluated using a modified Heller equation, which depends on the refractive indexes of the mixtures. Comparison of the predictions by different methods with the experimental values of the physical properties has been made.
Databáze: OpenAIRE