Table 4 listed the comparison results between literatures and this work. Compared with the results of Chen et al.16 and Beckner et al.42, our model obtained good statistical results under a wider range of temperature and pressure. Compared with Zhao et al.55 and Yan et al.29, it was clear that our model has a larger amount of data and a wider variety of ILs with higher R 2 and lower AARD , which further demonstrated that our model for predicting η values was more precise.