Ethyl acetate is a common organic compound. Its refractive index (Refractive Index Of Ethyl Acetate) is of great research value. The refractive index can be used as an important basis for judging the purity and concentration of substances. Under normal circumstances, the refractive index of ethyl acetate fluctuates in a specific range. Many factors will affect the refractive index of ethyl acetate. When the temperature increases, the refractive index often decreases; when the concentration changes, it will also cause the refractive index to change. In experiments and industrial production, it is of great significance to accurately determine the refractive index of ethyl acetate. With the refractive index data, the production process can be controlled to ensure product quality. Accurate determination of refractive index requires the help of sophisticated instruments and strict compliance with operating specifications. In this way, accurate and reliable refractive index data of ethyl acetate can be obtained, which provides strong support for work in related fields.