The paper studies quadratic solvation models (QSMs) applied to the numerical simulation of the vapor pressures of solvent systems with a salt effect. Two useful general quadratic solvation relationships are presented within an integration framework, incorporating cumulative physical indices for components and boundary constraints, in conjunction with the vapor pressures of monomolecular fluids calculated from Antoine, Senol, Frost-Kalkwarf and Xiang-Tan equations. Literature data for the vapor pressures of 18 diverse binary (solvent + salt) and ternary (solvent 1 + solvent 2 + salt 3) vapor–liquid equilibrium systems are subjected to the statistical analysis of QSMs via a logarithmic-ratio objective function and cumulative frequency distribution. Essentially, the examined QSMs with twelve (QSM12) and six (QSM6) adjustable coefficients are quite accurate in yielding overall design factors ( F od ) lower than 1.015 and 1.08, respectively. The concentration-dependent model (CM) also simulates precisely the observed data with F od = 1.013 as far as salt effects are concerned. QSM12 models have proven reasonably successful in predicting the vapor pressures of ternary systems with a mean deviation of 2.2%.

中文翻译：

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用二次溶剂化关系估算溶剂 + 盐系统的蒸气压

该论文研究了二次溶剂化模型 (QSM)，该模型应用于具有盐效应的溶剂系统的蒸气压数值模拟。在积分框架内提出了两个有用的一般二次溶剂化关系，结合了组分和边界约束的累积物理指数，以及从 Antoine、Senol、Frost-Kalkwarf 和湘潭方程计算的单分子流体的蒸气压。18 种不同的二元（溶剂 + 盐）和三元（溶剂 1 + 溶剂 2 + 盐 3）汽液平衡系统的蒸气压的文献数据通过对数比目标函数和累积频率进行了 QSM 的统计分析分配。本质上，具有十二个 (QSM12) 和六个 (QSM6) 可调系数的检查 QSM 在产生分别低于 1.015 和 1.08 的总体设计因子 (F od ) 方面非常准确。就盐效应而言，浓度依赖模型 (CM) 还精确模拟了 F od = 1.013 的观察数据。QSM12 模型在预测平均偏差为 2.2% 的三元系统的蒸气压方面已被证明相当成功。