The solubility of naphthalene in ethyl acetate is related to its intermolecular force, solvent properties and many other factors. The solubility of naphthalene in ethyl acetate is currently studied. The mechanism of the solubility of naphthalene in ethyl acetate is worthy of further investigation.

Naphthalene has the structure of a fused ring aromatic hydrocarbon and is a non-polar molecule. Ethyl acetate, which contains ester groups, although the overall polarity is weaker, it is still different from the non-polar structure of naphthalene. According to the principle of "similar miscibility", those with similar polarities are easily miscible. Although naphthalene is non-polar, the weak polarity of ethyl acetate can interact with naphthalene through Van der Waals force.

When naphthalene is placed in ethyl acetate, the molecule of ethyl acetate is close to the non-polar structure of naphthalene molecule with its weakly polar part. In this process, the dispersion force plays an important role in attracting the two molecules to each other. As the molecular contact between the two increases, the naphthalene molecules gradually disperse between ethyl acetate molecules, reaching a state of dissolution.

Temperature is also a key factor affecting the solubility of naphthalene in ethyl acetate. When the temperature increases, the thermal motion of the molecule intensifies, and the kinetic energy of both ethyl acetate and naphthalene molecules increases. In this case, the molecules are easier to overcome the mutual force, making the naphthalene molecules more easily dispersed in ethyl acetate, and the solubility often increases accordingly.

The pressure factor has little effect on the solubility of naphthalene in ethyl acetate under normal conditions. Neither of the caps is a gas, and the pressure change has little effect on their molecular spacing and interaction.

In addition, the presence of impurities or other solutes in the solvent may also affect the solubility of naphthalene. Impurities or other solutes, or compete with naphthalene for the check point of solvent molecules, or change the physical and chemical properties of the solvent, thereby affecting the solubility of naphthalene to ethyl acetate.

In summary, the solubility of naphthalene to ethyl acetate is affected by many factors such as molecular structure, temperature, and impurities. To clarify these many factors is of great significance for in-depth understanding of the dissolution behavior of the two, and even the regulation of related chemical processes.