Research Publications (Engineering and Built Environment)
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Item Vapor-liquid equilibrium data for binary systems of 1-Methyl-4-(1-methylethenyl)-cyclohexene plus {Ethanol, Propan-1-ol, Propan-2-ol, Butan-1-ol, Pentan-1-ol, or Hexan-1-ol} at 40 kPa(American Chemical Society (ACS), 2012-07) Ngema, Peterson Thokozani; Matkowska, Dobrochna; Naidoo, Paramespri; Hofman, Tadeusz; Ramjugernath, DereshIsobaric binary vapor-liquid equilibrium (VLE) data were measured for the 1-methyl-4-(1-methylethenyl)-cyclohexene (d-limonene) + {ethanol, propan-1-ol, propan-2-ol, butan-1-ol, pentan-1-ol, or hexan-1-ol} systems at 40 kPa. A low pressure dynamic still was used for the measurements. The experimental data were regressed using the nonrandom two-liquid (NRTL) and Wilson activity coefficient models. Both models correlated the data well. The 1-methyl-4-(1-methylethenyl)- cyclohexene + {butan-1-ol or pentan-1-ol or hexan-1-ol} systems exhibit a minimum temperature azeotrope. The 1-methyl-4-(1-methylethenyl)-cyclohexene + {ethanol or propan-1-ol or propan-2-ol} systems show the largest positive deviation from Raoult's law, and these systems exhibit no azeotropic behavior. © 2012 American Chemical Society.