Abstract The saturated vapor pressure of 2-phenyloxirane (PhOxi) was determined using a rose type equilibrium cell at different temperatures ranging from 303.15 K to 465.65 K. The experimental data were fitted with the Antoine and Clarke−Glew equations by minimizing the error of the maximum likelihood objective function using Britt – Luecke algorithm, which yielded Antoine parameters (A = 6.3964, B = 1999.56, C = −11.91 K) and standard molar vaporization enthalpy ( Δ l g H m 0 (298.15 K) = 40.97 kJ.mol−1). The molar enthalpy and entropy of vaporization at boiling point was found out to be 40.36 kJ.mol−1 and 86.48 J.mol−1.K−1, respectively. The critical state parameters of PhOxi, such as critical temperature (Tc), pressure (pc), and volume (Vc), were estimated by the group contribution method (GCM) introduced by both Joback and Reid (JR) model and Nannoolal (NA) model. The acentric factor (ω) of PhOxi was estimated from these critical parameters and the reduced saturated vapor pressures calculated from both the Clarke−Glew equation and the Antoine equation.

中文翻译：

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2-苯环氧乙烷的饱和蒸气压、临界状态参数和汽化焓

摘要 2-苯基环氧乙烷 (PhOxi) 的饱和蒸气压是在 303.15 K 到 465.65 K 的不同温度下使用玫瑰型平衡池测定的。实验数据通过最小化误差与 Antoine 和 Clarke-Glew 方程拟合。使用 Britt – Luecke 算法的最大似然目标函数，其产生 Antoine 参数（A = 6.3964，B = 1999.56，C = -11.91 K）和标准摩尔蒸发焓（Δlg H m 0 (298.15 K) = 40.97 kJ.mol− 1）。发现摩尔焓和沸点蒸发熵分别为 40.36 kJ.mol-1 和 86.48 J.mol-1.K-1。PhOxi 的临界状态参数，如临界温度（Tc）、压力（pc）和体积（Vc），由Joback and Reid (JR) 模型和Nannoolal (NA) 模型引入的组贡献法(GCM) 估计。PhOxi 的偏心因子 (ω) 是根据这些关键参数和根据 Clarke-Glew 方程和 Antoine 方程计算的降低的饱和蒸气压估算的。