Abstract Isothermal measurements for 2-methylpropan-1-ol (1) + n-octane (2) and 2-methylpropan-1-ol (1) + n-decane (2) were conducted utilizing an Anton Paar DMA HP densimeter. Measurements include the entire mixture composition range and were conducted in the pressure range (0.1 – 20) MPa for 5 different temperatures between 313.15 to 353.15 K. The data were successfully correlated for each composition with the modified Toscani-Szwarc equation using 5 unique parameters. The data were also fit to the Peng-Robinson equation of state using a single binary interaction parameter, however quantitative results were poor. Mixture density predictions were also made by the PC-SAFT model, which also yielded mostly qualitative results. Three derived thermodynamic properties, namely excess molar volume, thermal expansivity and isothermal compressibility, were also computed using the regressed parameters.

中文翻译：

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313.15 K-353.15 K 和 0.1-20 MPa 之间（2-甲基丙-1-醇 + 正辛烷或正癸烷）的 P-ρ-T 数据和建模

摘要 使用安东帕 DMA HP 密度计对 2-甲基丙-1-醇 (1) + 正辛烷 (2) 和 2-甲基丙-1-醇 (1) + 正癸烷 (2) 进行等温测量。测量包括整个混合物成分范围，并在 313.15 至 353.15 K 之间的 5 个不同温度下在压力范围 (0.1 – 20) MPa 下进行。使用 5 个独特参数将每种成分的数据成功关联到修改后的 Toscani-Szwarc 方程。使用单个二元相互作用参数也将数据拟合到 Peng-Robinson 状态方程，但定量结果很差。PC-SAFT 模型也进行了混合物密度预测，该模型也产生了大部分定性结果。三种衍生的热力学性质，即过量摩尔体积、热膨胀系数和等温压缩系数，