1 In the systems having ions and nonelectrolyte molecules both of large size, the effect of dispersion forces can not be neglected.

2 Model UNIFAC is one of the most widely used model in reckoning the component activity coefficient in nonelectrolyte solution. It is also used in engineering designing calculation.

3 The three-dimensional hindrance pored model can be applied to characterize the nonelectrolyte separation.

4 This work has tried to apply the scaled particle theory to polar solute system, and drived a formula of salting-out constant for polar nonelectrolyte.

5 The Molar conductivities in DMF solvent indicate that the complex are nonelectrolyte.