实验测定了温度为283.15~308.15 K条件下间十五烷基酚与正庚烷形成的二元体系的密度和粘度。通过拟合,得到了准确的模型参数,同时计算了测定值和计算值之间的误差。结果证明,数据和模型拟合效果良好,VTF方程的标准方差是0.78%,数据和模型对于间十五烷基酚分离提纯的工程设计非常有用。 The density and viscosity of the binary system formed by pentadecylphenol and n-heptane at 283.15 ~ 308.15 K were experimentally determined. By fitting, the accurate model parameters are obtained, and the errors between the measured value and the calculated value are calculated at the same time. The results show that the data and model fit well and the standard deviation of the VTF equation is 0.78%. The data and the model are very useful for the engineering design of the separation and purification of pentadecylphenol.