The excess molar volumes of (hydrocarbon + branched chain ether) systems at 298.15 K and 308.15 K, and the application of PFP theory |
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Institution: | Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00664, Warsaw, Poland |
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Abstract: | The excess molar volumes, VmE, have been calculated from measured density values over the whole composition range at the temperatures 298.15 K and 308.15 K and under atmospheric pressure for the 12 mixtures {hydrocarbon (heptane, 2,2,4-trimethylpentane, 1-heptene or toluene) + branched chain ether (methyl 1,1-dimethylethyl ether, ethyl 1,1-dimethylethyl ether or methyl 1,1-dimethylpropyl ether)}. The excess volumes of all the mixtures except (toluene + ether) are positive over the whole composition range. The experimental results have been correlated and compared with the results from Prigogine-Flory-Patterson (PFP) theory. |
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Keywords: | Excess volume MTBE ETBE MTAE Molecular interactions Prigogine-Flory-Patterson theory Liquid mixtures |
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