Excess molar volumes of (hydrocarbon + ethyl 1,1-dimethylpropyl ether) atT = (298.15 and 308.15) K

Urszula Domańska-Żelazna , Joanna Lachwa


The excess molar volumes VmEhave been measured as a function of mole fraction at T = (298.15 and 308.15) K and atmospheric pressure for each of 12 binary mixtures: (hexane, or cyclohexane, or benzene, or heptane, or 1-heptene, or 1-heptyne, or octane, or 2,2,4-trimethylpentane, or decane, or dodecane, or tetradecane, or hexadecane + ethyl 1,1-dimethylpropyl ether). The results were compared to excess molar enthalpies HmEfor related mixtures and the specific interactions noted. The VmEof all mixtures except for 1-heptyne and benzene are positive over the whole composition range. The experimental results have been correlated with Redlich–Kister polynomial and compared with the results predicted from Prigogine–Flory–Patterson theory. The interchange parameter, X12, which minimized VmEexperimental data was adjusted and then used to predict enthalpy of mixing. The excess molar functionsVmE and HmEof mixtures with hydrocarbons for four ethers: methyl 1,1-dimethylethyl ether, ethyl 1,1-dimethylethyl ether, methyl 1,1-dimethylpropyl ether and ethyl 1,1-dimethylpropyl ether were discussed.
Author Urszula Domańska-Żelazna (FC / DPC)
Urszula Domańska-Żelazna,,
- Department Of Physical Chemistry
, Joanna Lachwa
Joanna Lachwa,,
Journal seriesJournal of Chemical Thermodynamics, ISSN 0021-9614
Issue year2000
Keywords in Englishethyl 1,1-dimethyl propyl ether, Excess volume, Hydrocarbons, Molecular interactions, Prigogine–Flory–Patterson theory
URL http://www.sciencedirect.com/science/article/pii/S0021961499906523
Languageen angielski
Score (nominal)35
Publication indicators WoS Impact Factor: 2006 = 1.842 (2) - 2007=1.612 (5)
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