Studies on thermodynamic properties of (a hydrocarbon + a branched chain ether) mixtures

作者: U Domańska , S Malanowski

DOI: 10.1016/S0378-3812(99)00083-7

关键词: Non-random two-liquid modelTetradecaneUNIQUACEtherOrganic chemistryDodecaneAnalytical chemistryAlkaneDecaneChemistryOctane

摘要: Abstract The solid–liquid equilibrium, SLE, has been measured for {a hydrocarbon (C18–C28)+methyl 1,1-dimethylethyl ether (MTBE), or ethyl (ETBE)} mixtures from 280 K to the melting temperature of hydrocarbon. Experimental solubilities are compared with values calculated by means Wilson, UNIQUAC and NRTL equations utilizing parameters taken SLE. liquid–liquid LLE, {water+(ETBE), methyl 1,1-dimethylpropyl (MTAE), (ETAE)} 300 360 K. mutual solubility in binary systems (heptane, 1-heptene, toluene+MTBE, ETBE, MTAE) range 273 298 measured. All these have found be homogenous. excess molar volumes, VmE, at temperatures 298.15 308.15 (hexane, octane, decane, dodecane, tetradecane, hexadecane), cyclohexane 1-heptyne+a branched chain (ETBE)}. volumes all except 1-heptyne positive over whole composition range. experimental results correlated Prigogine–Flory–Patterson (PFP) theory.

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