What is known as the eutectic point?

The eutectic point refers to the specific temperature at which a certain solution begins to freeze when it is held under equilibrium conditions. At this point, the solid and liquid phases of the mixture coexist in a stable manner. This temperature is significant in refrigeration systems, particularly when dealing with phase changes of refrigerants or solutions. It represents the lowest temperature at which a mixture can remain completely liquid before it starts to solidify.

In the context of refrigeration, understanding the eutectic point is crucial for applications like freezing or maintaining cold storage because it allows engineers and technicians to predict how a solution will behave under different thermal conditions. The freezing temperature of a certain solution is especially relevant when selecting refrigerants that will perform optimally within the required temperature range of their intended application.