Evaluation of physical properties of ionic liquids

Then mathematical gnostics was used to analyse the uncertainty and discrepancy of experimental data reported from different resources and to recommend reliable datasets.The volumetric properties of ionic liquids were evaluated by using a group contribution method.

The volumetric parameters of 55 ions were calculated by correlating 5,399 training data points using the Tait-type equations. 2,522 test datapoints were used to validate the accuracy of this method. This method also allows the calculation of mechanical coefficients with a good agreement.The viscosity of pure and binary mixtures of ionic liquids was estimated using a new method based on the UNIFAC-VISCO model. The dataset containing 819 experimental viscosity data points for 70 pure ionic liquids was correlated using the modified UNIFAC-VISCO method, thus the interaction parameters and ion VFT parameters were estimated, which were used for the evaluation of 11 types of binary mixtures.