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[Chemical Knowledge]：Properties and Uses of Ethyl Acetate

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Ethyl acetate is an important organic chemical raw material, which is widely used in medicine, pesticides, plastics, spices and other fields. This article will detail the properties and uses of ethyl acetate.

1. the nature of ethyl acetate

1. physical properties

ethyl acetate is a colorless transparent liquid, a pungent smell. Relative density 0.902, melting point -83.6 ℃, boiling point 77.2 ℃, refractive index 1.3719, flash point (open cup) 7.2 ℃, spontaneous combustion point 426.6 ℃, viscosity 0.45mPa · s, surface tension 27.3mN/m. Soluble in most organic solvents, insoluble in water.

2. chemical properties

ethyl acetate has the typical chemical properties of ester, which is prone to alcoholysis, ammonolysis, ester exchange and other reactions. Under acidic conditions, ethyl acetate can be hydrolyzed to produce acetic acid and ethanol. In addition, ethyl acetate can also undergo reduction, oxidation, condensation and the like reactions.

2. the use of ethyl acetate

1. paint industry

of ethyl acetate is an important solvent in the paint industry, can be used for the preparation of lacquer, varnish, enamel, etc. Ethyl acetate has good solubility and quick-drying properties to the coating, which can improve the leveling and gloss of the coating.

2. pharmaceutical industry

ethyl acetate in the pharmaceutical industry as a solvent and extraction agent, can be used for the production of antibiotics, vitamins and other drugs. In addition, ethyl acetate can also be used in the manufacture of rayon, film, etc.

3. Fragrance Industrial

Ethyl acetate has a pleasant fruit aroma and can be used to formulate edible flavors and daily chemical flavors. In the fragrance industry, ethyl acetate is often used as a harmonic fragrance to increase the concentration and persistence of the aroma.

4. Organic synthesis

Ethyl acetate is an important intermediate in organic synthesis, which can be used to synthesize cellulose acetate, acetic anhydride, ethyl acetate and other compounds. In addition, ethyl acetate can also be used to prepare dyes, plastics, etc.

In conclusion, as an important organic chemical raw material, ethyl acetate has a wide range of uses in the field of chemical production raw materials. Due to its unique physical and chemical properties, ethyl acetate plays an important role in the fields of paint, medicine, fragrance and organic synthesis. With the continuous development of science and technology, the application field of ethyl acetate will continue to expand.

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