On the density of ethyl acetate
To know the density of ethyl acetate, it is necessary to understand its physical properties. Ethyl acetate, as well as organic compounds, has a special fragrance, clear and transparent color.

Looking at physical properties, its density is related to many factors. Under normal circumstances, when the temperature is constant, the density of ethyl acetate has its specific value. In a standard environment, that is, the temperature is [specific standard temperature], the pressure is [specific standard pressure], and its density is about [X] grams/cubic centimeter. This value is determined repeatedly by many experiments and is recognized by the academic community.

However, the density is not static. When the temperature increases, the molecular thermal motion intensifies, and the molecular spacing increases, causing the density to decrease; conversely, when the temperature decreases, the molecular motion slows down, the spacing narrows, and the density increases. The change of pressure also has an effect. Although the effect is slight in the normal pressure range, under high pressure, the molecules are compressed, the spacing becomes smaller, and the density increases accordingly.

The method for measuring the density of ethyl acetate is commonly used with the specific gravity bottle method. First take a clean and dry specific gravity bottle and accurately weigh its quality. Then inject an appropriate amount of ethyl acetate to ensure that no bubbles remain, and then call it the quality at this time. The difference in quality before and after is the quality of ethyl acetate, and the volume of the specific gravity bottle is known. According to the density formula "density = mass ÷ volume", its density can be calculated.

Another density meter method is convenient and fast. The density meter is placed in a container containing ethyl acetate. After it is stabilized, the value shown on the scale is read, which is the density of ethyl acetate under this condition. However, when using this method, it is necessary to pay attention to the influence of temperature and make temperature correction if necessary to obtain accurate values.

In summary, the density of ethyl acetate is affected by factors such as temperature and pressure. Accurate determination requires appropriate methods and takes into account environmental factors. Understanding the principle of density is of great significance in many fields such as chemical industry and scientific research.