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[Chemical Knowledge]：Properties and Uses of Butyl Propionate

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The properties and uses
of butyl propionate
butyl propionate is a chemical product with specific chemical and physical properties, which is widely used in various industrial production processes. This article will detail the properties, production methods, safety and main uses of butyl propionate.

1. the nature of butyl propionate

butyl propionate is a colorless transparent liquid, with elegant fruit flavor. Its molecular formula is C7H14O2 and its molecular weight is 130.19. Butyl propionate has a boiling point of 153-155°C, a density of 0.879g/cm3, a refractive index of 1.405-407, and a flash point of 54°C. It is insoluble in water, but miscible with organic solvents such as alcohols and ethers.

2. butyl propionate production method

butyl propionate production is mainly achieved by esterification reaction, generally using propionic acid and n-butanol as raw materials, in the presence of acidic catalyst reaction. The water produced by the reaction can be removed by azeotropic distillation to facilitate the reaction. The specific production process can be optimized according to the purity of raw materials and reaction conditions.

3. the safety
of butyl propionate
butyl propionate is irritating to the skin and eyes, and prolonged contact may cause dry skin and dermatitis. Inhalation of butyl propionate vapor may cause respiratory irritation, dizziness, headache and other symptoms. Therefore, it is necessary to take corresponding protective measures during production and use, such as wearing protective gloves, goggles and respirators.

4. The use of butyl propionate

1. Food additives: butyl propionate can be used as food spices, giving food a specific taste and flavor. It is widely used in candy, cakes, beverages and other foods.
2. Solvent: Butyl propionate is an excellent organic solvent, which can be used in the production of inks, coatings, adhesives and other fields.
3. synthetic intermediates: butyl propionate can be used as an intermediate for the synthesis of other compounds, for the production of drugs, pesticides and so on.

In conclusion, butyl propionate, as an important chemical, has a wide range of applications in the fields of food additives, solvents and synthetic intermediates. In the process of production and use, it is necessary to fully understand its nature and safety, and take corresponding protective measures to ensure the safety and effectiveness of the production process.

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