Abstract Measurements of density, viscosity, refractive index and conductivity of a switchable hydrophilicity solvent (SHS) system (N,N-dipropyl-1-propanamine (TPA), water, and carbon dioxide) have been carried at (283.15–308.15) K and 0.1 MPa. The derived parameters, such as apparent molar volume of solute, limiting apparent molar volume of solute, Masson’s coefficient SV, molar refraction and limiting molar conductivity, were obtained using the density, refractive index and conductivity results. Viscosity results are used to calculate the Jones-Dole viscosity B-coefficient, free energy of activation of the solute and solvent, activation enthalpy, and activation entropy. A detailed insight into the physicochemical interactions occurring among solute and solvent molecules along with the structure-making/structure-breaking tendency has been retrieved through the perusal of these calculated parameters.

中文翻译：

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可切换亲水性溶剂体系的热物理性质：N,N-Dipropyl-1-propanamine、水和二氧化碳

摘要 可转换亲水性溶剂 (SHS) 系统（N,N-二丙基-1-丙胺 (TPA)、水和二氧化碳）的密度、粘度、折射率和电导率的测量在 (283.15–308.15) K和 0.1 兆帕。使用密度、折射率和电导率结果获得了衍生参数，例如溶质的表观摩尔体积、溶质的极限表观摩尔体积、马松系数SV、摩尔折射和极限摩尔电导率。粘度结果用于计算琼斯-多尔粘度 B 系数、溶质和溶剂的活化自由能、活化焓和活化熵。