Supercooling

In thermodynamics we call supercooling the cooling of a substance below the temperature at which a change of state would ordinarily take place.
Once the solution become supersaturated. crystallization may occur. This means that the solution has to contain more solute entities ( nuclei ) dissolved than it would contain under the equilibrium (saturated solution).
The activation free energy of crystallisation is lowest for α form, higher for β ' and the highest for β form.

Schematic graph of monotectic phase diagram with continuos solid solution.

Note :
Vegetable oils are mixtures of various mono-, di- and triglycerides,as well as some other minor components.

[Back]