Detailed analysis of ethyl acetate
Ethyl acetate has a unique fragrance and is widely used in chemical industry. Its physicochemical properties are particularly important. At room temperature and pressure, it is a clear colorless liquid with a pleasant and volatile odor. The boiling point is about 77 ° C, the density is less than that of water, about 0.902g/cm ³, slightly soluble in water, and can be miscible with many organic solvents such as alcohols and ethers.

The preparation method of this substance is commonly obtained by esterification of acetic acid and ethanol under the conditions of concentrated sulfuric acid catalysis and heating. The reaction formula is: $CH_3COOH + C_2H_5OH\ stackrel {concentrated sulfuric acid} {\ underset {\ triangle} {\ rightleftharpoons}} CH_3COOC_2H_5 + H_2O $. When operating, it is necessary to pay attention to the order of adding reagents, first add ethanol, second add concentrated sulfuric acid, and finally add acetic acid, and slowly heat to prevent side reactions.

From a safety perspective, ethyl acetate is a flammable substance, and its vapor and air can form an explosive mixture. In case of open flame and high heat, it can cause combustion and explosion. Therefore, when storing and using, be sure to keep away from fire and heat sources, and keep the container sealed. The workplace should have good ventilation conditions, and fireworks are strictly prohibited. If a fire accidentally catches fire, it can be extinguished with anti-soluble foam, carbon dioxide, dry powder and other fire extinguishing agents.

It also affects the human body. Inhalation of high-concentration ethyl acetate vapor can cause eye, nose and throat irritation, headache, dizziness, nausea, etc. Skin contact can cause degreasing, dryness, and redness. When operating, appropriate protective equipment should be worn, such as gas masks, protective gloves, etc. In case of accidental contact, it should be quickly washed with a large amount of water, and in severe cases, it should be sent to the hospital.

In terms of the environment, if ethyl acetate leaks into the environment, because of its volatility, part of it escapes into the atmosphere, and part of it enters the water body and soil. Although it has a certain self-purification ability in the environment, a large amount of leakage will still cause harm to the environment. Entering the water body can reduce the dissolved oxygen in the water and affect the survival of aquatic organisms. Therefore, in the event of a leak, emergency measures should be taken quickly, such as evacuating personnel, cutting off the fire source, absorbing it with inert materials such as sand and vermiculite, and properly collecting

In summary, ethyl acetate plays an important role in chemical production, but when using and storing it, safety and environmental protection should not be ignored, and it must be operated according to norms to ensure the safety of personnel and the environment.