Correlation between the boiling point of ethyl acetate under vacuum
The change of the boiling point of ethyl acetate under vacuum must first understand its physical properties and the principle of vacuum. For ethyl acetate, a colorless liquid with aromatic gas, under normal circumstances, the boiling point is about 78.7 degrees Celsius. However, the ambient pressure changes, and its boiling point is also easy.

In a vacuum, the pressure is lower than the normal atmospheric pressure. According to physics, the boiling point of a liquid is closely related to the external pressure. When the external pressure decreases, the energy required for the molecule to escape from the liquid surface decreases, and the boiling point also decreases. When ethyl acetate is placed in a vacuum system, the pressure gradually decreases, and it is easier for its molecules to break free from the liquid phase.

To measure the boiling point of ethyl acetate under vacuum, an accurate pressure measurement and temperature control device is often required. First set up a closed container with ethyl acetate built in, and use a vacuum pump to extract air to cause different vacuum degrees, and observe its boiling temperature. After many experiments, a rule is obtained: the higher the degree of vacuum, that is, the lower the pressure, the more obvious the boiling point of ethyl acetate drops.

If the pressure drops to a certain value, its boiling point may be dozens of degrees lower than that at normal pressure. This phenomenon is of great significance in the chemical and pharmaceutical industries. In the process of chemical separation and purification, the change of boiling point under vacuum can be used to vaporize and separate ethyl acetate at a lower temperature to avoid the risk of decomposition and deterioration of substances caused by high temperature. In the pharmaceutical process, this method is also used to refine pharmaceutical ingredients to maintain their activity and purity.

The characteristics of the boiling point of ethyl acetate under vacuum are of great value in scientific research and industrial practice, and can inspire new ideas, promote technological progress, and contribute to the development of many fields.