System Modifications Induced by the Presence of Solute

Until now, an anempt at explaining the observed modifications of VLEs induced by the presence of the solute has been made. Some compounds do not interfere with the binary VLEs therefore, the one-phase region is the same as in the binary system (at temperatures and pressures higher than MCP). But, we have seen that, in general, the 

In this case, the question is how is it possible to obtain two gas-like phases When a two-phase equilibrium is obtained for type I systems, it is always characterized by a liquid- and gas-rich phase connected by a tie line. Indeed, these systems are characterized by an uninterrupted critical line that connects the critical points of the pure components.  

If we consider a type V system, instead, as the temperature increases, an azeotrope appears. The binary system DMSO-COj is of type I and the presence of Cefonicid at 40 °C does not modify this characteristic. But when the temperature is increased at 60 °C, a type V situation is probably produced. It means that an azeotrope is formed the critical line is not continuous, but is formed by two lines, which start 

In this chapter, we have highlighted that SAS performance is conditioned by thermodynamic constraints and it is possible to explain SAS products morphology through a thermodynamic-based approach. 

At this point, the question is is the picture of SAS conditioning thermodynamic behaviors complete Probably not. Indeed, very complex interactions are possible in ternary systems. The approach proposed is encouraging from another point of view. Even if a very complex behavior develops in the ternary systems, a systematic analysis of VLEs can allow the identification of the regions in which effective precipitation can be obtained. 

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