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[Chemical Knowledge]：Properties and Uses of n-Butyl Acetate

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N-butyl acetate is an important organic chemical raw material, which is widely used in paint, printing ink, leather, medicine, spice and other industries. This article will detail the properties and uses of n-butyl acetate.

1. properties of n-butyl acetate

1. physical properties
n-butyl acetate is a colorless transparent liquid, with fruit flavor. Relative density 0.8826(20/4 ℃), melting point -73.5 ℃, boiling point 126.1 ℃, refractive index 1.3993, flash point (open cup) 43 ℃, viscosity 0.716mPa · s. Insoluble in water, soluble in ethanol, ether and other organic solvents.

2. Chemical properties
n-Butyl acetate has the typical properties of ester compounds, and is prone to hydrolysis, alcoholysis, aminolysis and other reactions. Under acidic conditions, n-butyl acetate reacts with water to produce acetic acid and n-butanol. Further, n-butyl acetate can also undergo a transesterification reaction with compounds such as alcohols and amines.

2. the use of n-butyl acetate

1.
of the paint industry n-butyl acetate is commonly used in the paint industry solvent, can be used for the preparation of lacquer, acrylic paint, polyurethane paint and so on. It has good solubility and volatility, and can adjust the construction performance and drying speed of the coating.

2. printing ink
n-butyl acetate in the printing ink as a binder solvent, can improve the fluidity and drying of the ink, so that the surface of the print is smooth, dry quickly.

3. n-Butyl acetate
in leather industry can be used for degreasing and solvent extraction during leather processing, as well as as a solvent for leather finishing agents to improve the flexibility and gloss of the coating.

4.
of the pharmaceutical industry n-butyl acetate in the pharmaceutical industry can be used as synthetic raw materials and solvents for the production of antibiotics, vitamins and other drugs.

5. flavoring industrial
n-butyl acetate with fruit flavor, can be used for the preparation of food flavor and flavor, improve the aroma quality of products.

In conclusion, n-butyl acetate, as an important organic chemical raw material, has broad application prospects in the field of chemical production raw materials.

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