Prediction of excess molar volumes of binary mixtures by Prigogine–Flory–Patterson (PFP) and extended real association solution (ERAS) models

Ivona Radović, Nikola Grozdanić, Bojan Djordjević, Slobodan Šerbanović, Mirjana Kijevčanin

Abstract


In this paper, the Prigogine–Flory–Patterson (PFP) theoretical model and the extended real association solution (ERAS) model for the prediction of the excess molar volumes of 17 binary sets of alcohols (methanol, ethanol, pro­pan-1-ol, butan-1-ol, butan-2-ol and pentan-1-ol) with benzene, chlorobenzene, acetonitrile, hexan-1-amine and n-heptane were tested at 298.15 K and atmo­spheric pressure. The binary sets contained 333 experimental data points for 11 different compounds. The ERAS model demonstrated better correlative charac­ter­istics for binary mixtures comparing to PFP model. The ERAS model is successfully applied on all binary systems except ethanol + benzene and pro­pan-1-ol + benzene. PFP model gave less satisfactory results for all systems except butan-1-ol + hexan-1-amine, for which obtained results were acceptable.

Keywords


binary mixtures; excess molar volume; prediction model; PFP; ERAS

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DOI: https://doi.org/10.2298/JSC170817103R

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