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

Abstract The excess molar volumes V m E have 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 H m E for related mixtures and the specific interactions noted. The V m E of 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, X 12 , which minimized V m E experimental data was adjusted and then used to predict enthalpy of mixing. The excess molar functions V m E and H m E of 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.