What are the main uses of N-butyl Cinnamate?
N-butyl cinnamate has a wide range of uses. In the field of fragrances, it can be used as a fragrance enhancer. Because of its unique fragrance, it is often used in the preparation of various fragrances, which can impart a rich and elegant fragrance. In perfumes, air fresheners, detergents and other products, it can increase the level and richness of its aroma.
In the paint industry, it also has important uses. It can be used as a modifier for coatings, which can improve the film-forming performance of coatings, make the coating more tough and glossy, and can also enhance the weather resistance and chemical corrosion resistance of coatings. It is widely used in architectural coatings, wood coatings, etc.
In the field of plastics processing, N-butyl cinnamate can be used as a plasticizer. Adding plastics can improve the flexibility and processing properties of plastics, make plastic products easier to shape, and maintain their physical and mechanical properties. Like in the processing of plastics such as polyvinyl chloride, it plays a key role in improving the quality and application range of plastic products.
In addition, in the pharmaceutical and chemical industry, it may be an important intermediate for the synthesis of certain drugs. Through specific chemical reactions, it participates in the drug synthesis process, which is crucial for the creation of new drugs. All of these are the main uses of N-butyl cinnamate.
What are the physical properties of N-butyl Cinnamate?
N-butyl cinnamate ester, its physical properties are as follows:
This substance is mostly colorless to light yellow liquid at room temperature. Looking at its appearance, it is clear and transparent, like glass, and there are no impurities mixed in it. Its smell is unique, it seems to have a light fragrance, which can be smelled leisurely, but it is not strong and pungent, giving people a feeling of freshness.
When it comes to density, it is between 0.99 and 1.01g/cm ³, which is slightly lighter than water. If you take a little bit and put it in water, you can see that it floats on the water surface leisurely, like a boat on water. Its boiling point is quite high, about 280-290 ° C, and it needs to be boiled at high temperature to vaporize. The melting point is relatively low, mostly around -10 ° C, so it is difficult to see it condensing into a solid state at room temperature.
Furthermore, its solubility also has characteristics. It can be melted with many organic solvents, such as ethanol, ether, etc., and the two are mixed in an instant, and they are indistinguishable from each other. However, in water, its solubility is very small, and when dropped into water, it aggregates into oily droplets, which float on the water surface, just like water droplets on lotus leaves, and it is difficult to dissolve with water.
In addition, N-butyl cinnamate has a certain refractive index, which is about 1.54-1.56. When the light passes through, the light enters a labyrinth and is refracted, making this object unique under the light, shining brightly, as if it contains a wonderful optical mystery.
What are the chemical properties of N-butyl Cinnamate?
N-butyl cinnamate is one of the organic compounds. Its properties are mostly colorless to light yellow oily liquids at room temperature, with a fragrant smell and a mixture of fruity and floral aromas.
When it comes to solubility, this substance is soluble in many organic solvents, such as ethanol, ether, chloroform, etc., but its solubility in water is extremely low. Because the molecule contains both long-chain alkyl (butyl), lipophilic, and ester groups, although it has a certain polarity, it is difficult to form effective hydrogen bonds with water molecules, so it is weak in hydrophilicity.
Its chemical properties show unique reactivity due to the presence of carbon-carbon double bonds and ester groups in the molecular structure. The carbon-carbon double bond can undergo an addition reaction. When it encounters bromine water, it can fade the bromine water, and the bromine atom is added to the double bond; under the action of a suitable catalyst, it can undergo a hydrogenation reaction with hydrogen, and the double bond can be converted into a single bond. The ester group can undergo a hydrolysis reaction. Under acidic conditions, it is hydrolyzed to form cinnamic acid and butanol; under alkaline conditions, the hydrolysis is more thorough, resulting in cinnamate and butanol, which is one of the saponification reactions. At the same time, because of its conjugated structure, it has good stability and optical properties to a certain extent, and may have applications in photochemical reactions and other fields.
What is the production method of N-butyl Cinnamate?
The preparation method of N-butyl cinnamic acid ester is made by esterification of cinnamic acid and n-butanol as raw materials. The method is as follows:
First take an appropriate amount of cinnamic acid and place it in a clean reaction vessel. Take a complex amount of n-butanol and add it to it according to an appropriate molar ratio. Usually, the amount of n-butanol is slightly more than that of cinnamic acid to promote the reaction to proceed in the direction of ester formation.
To accelerate the reaction, an appropriate amount of catalyst needs to be added. Common catalysts include protonic acids such as sulfuric acid, which can effectively reduce the activation energy of the reaction and speed up the esterification reaction rate.
Place the reaction system in a heating device and slowly heat up. The reaction temperature is generally controlled within a certain range. This temperature needs to take into account the boiling point of the reactants and the reaction rate in order to achieve the best reaction effect. During the heating process, stirring is required to make the reactants fully contact and the reaction is more uniform.
During the reaction process, water will be formed. In order to move the equilibrium in the direction of ester formation, azeotropic distillation and other means are often used to remove the water generated by the reaction in time.
After the reaction is completed, the reaction mixture is post-treated. It is first cooled, and then neutralized with an appropriate amount of alkali solution to remove the unreacted acid and catalyst. Then the organic phase is separated through the liquid operation.
The organic phase is washed and dried to remove the residual impurities and moisture. Finally, the product is purified by distillation and other methods, and the fraction in a specific boiling point range is collected to obtain pure N-butyl cinnamate.
What are the precautions during the use of N-butyl Cinnamate?
N-butyl cinnamate is an organic compound, and all precautions should not be ignored during use.
First, safety protection must be thorough. This compound may be irritating, and may cause discomfort when it comes into contact with the skin, eyes, or inhales its volatile gas. Therefore, when using it, you need to wear protective clothing, protective gloves and goggles, and ensure that the operating environment is well ventilated to prevent the accumulation of harmful gases and damage to the body.
Second, storage is also exquisite. It should be stored in a cool, dry place, away from fire sources and oxidants. Because of its flammability, it is easy to cause combustion hazards in case of open flames and hot topics, and contact with oxidants may cause violent reactions, resulting in safety accidents.
Third, the operation of taking and using it needs to be rigorous. Accurate measurement, avoid waste, and the operation action should be stable and accurate to prevent the compound from spilling. If it is accidentally spilled, it should be cleaned up immediately according to the correct method to prevent pollution of the environment or cause danger to others.
Fourth, know the emergency treatment. If the skin comes into contact, rinse with a large amount of flowing water as soon as possible; if it enters the eyes, rinse immediately with flowing water or normal saline, and seek medical attention in time. In the event of a fire, according to its chemical properties, suitable fire-extinguishing materials should be selected for rescue.
Use N-butyl cinnamate, which should be based on caution and operated strictly according to specifications to ensure safety.
