Experimental Results for the Limiting Activity Coefficients in Some Binary and Ternary Mixtures of Organic Components

Autor:	Yuri G. Dobrjakov, Ida M. Balashova, G. Maurer
Rok vydání:	2000
Předmět:	Activity coefficient Heptane Perfluoroheptane Chromatography General Chemical Engineering Thermodynamics General Chemistry Dilution Hexane chemistry.chemical_compound chemistry Ternary operation UNIFAC Perfluorohexane
Zdroj:	Journal of Chemical & Engineering Data. 45:185-193
ISSN:	1520-5134 0021-9568
DOI:	10.1021/je990204z
Popis:	Experimental results for the activity coefficients at infinite dilution of 13 binary systems of either hexane or heptane or cyclohexane with 1-propanol or 2-propanol or 1-butanol and those compounds with either perfluorohexane or perfluoroheptane are reported for temperatures from 298 K to 343 K. Furthermore, experimental results for the activity coefficients of these perfluoroalkanes at infinite dilution in binary mixtures of one of those alkanes and one of those alcohols at 298 K are reported. Some of the new experimental results agree well with literature data. The new experimental data are also compared to predictions from several group contribution methods. The best predictions are achieved with a UNIFAC model with corrections for “free volume” contributions and with a modification of Kehiaian's method. The differences between predictions from those models and the new experimental data typically amount to about 10%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0bee6a16725d8823461cf53565bac710 https://doi.org/10.1021/je990204z Zobrazit plný text záznamu