The boiling point and melting point of ethyl acetate are the key to the change of physical state. Its boiling point is about 77.1 ° C. At this temperature, ethyl acetate changes from liquid to gaseous state, and the molecule is energized, the movement intensifies, breaks free from the liquid phase and escapes into the gas phase.

As for the melting point, it is about -83.6 ° C. When the temperature drops below the melting point, ethyl acetate solidifies from liquid to solid state, and the molecular arrangement tends to be orderly, and the kinetic energy decreases, forming a regular lattice structure.

Knowing the boiling point and melting point of ethyl acetate is of great significance in many fields such as chemical preparation, separation and purification. For example, during distillation separation, precise temperature control according to its boiling point can effectively separate the mixture to obtain pure ethyl acetate; during storage and transportation, consider the melting point to prevent low temperature from solidifying and ensure the normal flow of materials. These two characteristics lay the foundation for the application of ethyl acetate in industry and scientific research, and determine its practical utility and operation specifications.