Dear Nourman

your question seems to be unanswered for a while. although I don't sense your problem,I try to break the ice for other researchers.

If you use an gamma model with sufficient parameters such as redlikh-kister expansion, your eutectic points will be seen in software.

Hi Nouman

It seems that RG community has no interest in your question! It is left unanswered for 18 months!

We had done this thermodynamic modeling of deep eutectic solvents using another package called (Simulink). It is easy and efficient, and can be integrated into Microsoft Excel. I have 2 publications whereby we used this package to model our ternary systems, you can refer to my publications and find them out.

However, it has been long time since you posted your question, I am sure you had figured it out somehow. If you did so, would you please share it with us?! Thank you.

Aspen Plus enables us to forecast the behavior of a process that involves the separation of different phases. This is done by employing fundamental engineering principles such as phase and chemical equilibrium, as well as reaction kinetics. A deep eutectic solvent (DES) consists of a hydrogen bond acceptor (HBA) and a hydrogen bond donor (HBD). The properties of DESs are essential for their application in separation processes within ASPEN PLUS. These properties rely on thermo-physical and kinetic characteristics like viscosity, solubility, average normal boiling point, density, and molecular weight. DESs are not listed as pure components in the ASPEN Plus database. Instead, they are defined as pseudo-pure components within the simulation environment. All temperature-dependent properties and parameters (such as molecular weight, vapor pressure, density, and specific gravity) specific to each DES are specified. It is assumed that DESs have a negligible vapor pressure, which is an inherent characteristic of DESs.