3 Methylbenzotrifluoride
Fluoride
3-methylbenzotrifluoride
Chemical Formula C8H7F3
Molar Mass 160.14 g/mol
Appearance Colorless liquid
Odor Characteristic odor
Density 1.18 g/cm³
Boiling Point 148 - 150 °C
Melting Point -45 °C
Flash Point 37 °C
Solubility In Water Insoluble
Vapor Pressure 1.33 kPa (29.5 °C)
Refractive Index 1.451
FAQ

What are the main uses of 3-methyltrifluorotoluene?

Methoxytriethoxysilane has a wide range of main uses. In the context of "Tiangong Kaiwu", various things can be considered.

First, in the art of painting decoration, this agent can be used as an additive. Ancient lacquer ware, if you want its color to be bright and firm in texture, methoxytriethoxysilane may be able to help it. When painting, mixing this agent in the paint can make the adhesion between the paint film and the object surface better, not easy to peel off. And it can increase the water resistance of the paint. Ancient lacquer ware is often placed in the room, and it is necessary to prevent moisture. This agent can help it and prolong its life.

Second, in architectural construction. In ancient palaces and temples, where the bricks and stones are connected, they are bonded with mortar. Methoxy triethoxysilane can enter the mortar, strengthen the bonding force of the mortar, and make the bricks and stones fit more densely. Wind and rain erosion, the passage of time, can also keep the building strong. Looking at the towers and Long Bridge of ancient times, they have survived for thousands of years, or have the power of such additives.

Third, in the fabric finishing. In ancient times, silk and cloth, we want them to have water-repellent properties and avoid water wetting. Soak the fabric in a solution containing methoxy triethoxysilane, take it out and dry, and the surface of the fabric can form a water-repellent film. In this way, when traveling in the rain, the clothes are not easy to get wet, and the toughness of the fabric may also increase, making it durable and durable.

Fourth, in the firing of ceramics. After the porcelain clay is shaped, before firing, a liquid containing this agent is applied. When firing, it can promote the densification of ceramics, smoother glaze surface and better luster. And it can reduce the porosity of ceramics, increase its strength and heat resistance. The famous porcelain of ancient times may be distinguished by its use.

In short, methoxyltriethoxysilane has its uses in various matters such as ancient craftsmanship, art, and manufacturing. Although ancient books may not contain its full details, its use in today's knowledge should not be underestimated.

What are the physical properties of 3-methyltrifluorotoluene?

Methoxytriethoxysilane, its physical properties are as follows:

Methoxytriethoxysilane is a colorless and transparent liquid under normal conditions, and it is quite fluid. Looking at its color, the pure one is almost colorless, if it contains impurities, or has a slightly yellowish phase. Its odor is specific, volatile, and can quickly emit odor in the air.

When it comes to density, under specific temperature conditions, it has a relatively stable value, roughly within a certain range (the specific value varies depending on the precise measurement conditions), and the density of more common organic solvents may be different. This property has an important impact on its distribution and behavior in various mixed systems.

Its boiling point is also a key physical property. Under normal pressure, it will boil into a gaseous state at a specific temperature. This boiling point temperature is an important reference index in separation, purification and related process operations. When the external pressure changes, the boiling point will also change accordingly, following certain physical laws.

In terms of solubility, methoxytriethoxysilane can be miscible with many organic solvents, such as alcohols, ethers, etc. This property makes it easy to disperse and participate in reactions in organic synthesis, coating preparation and other fields. However, its solubility in water is limited, and it will hydrolyze with water to form corresponding products such as silanol. The hydrolysis characteristics and reaction rate are affected by factors such as environmental pH and temperature.

In addition, the flash point of methoxytriethoxysilane also needs attention, which is an important parameter to measure its fire hazard. During storage and use, due to its flammability, it is necessary to strictly control the ambient temperature and fire source to prevent fire accidents.

What are the chemical properties of 3-methyltrifluorotoluene?

Methoxy triethoxy silane has mild properties and the ability to hydrolyze and condensate. When exposed to water, the siloxy group is easy to hydrolyze, and the silanol group is formed, and then condensed and cross-linked to form a siloxane network structure. This reaction is especially prone to occur in humid air or in a catalytic environment.

Its hydrolysis rate is related to the amount of ethoxy groups in silane and the spatial steric resistance. There are many ethoxy groups, and the hydrolysis is fast; the spatial steric resistance is large, and vice versa.

In the field of organic synthesis, methoxy triethoxy silane is a common reagent and can be used as a coupling agent to connect organic and inorganic materials to increase the adhesion and bonding between the two. For example, in the preparation of composite materials, the reinforcement is closely connected to the matrix to improve the material properties. < Br >
In the coating industry, it can improve the film formation, weather resistance and adhesion of coatings. By adding this silane, a siloxane network is formed in the coating, which increases the film compactness and hardness, is scratch-resistant and wear-resistant, and enhances the adhesion to the substrate, so that the coating adheres firmly.

In the field of building waterproofing, it can penetrate into porous materials, such as concrete and masonry. After hydrolysis and condensation, it forms a waterproof structure inside, reducing the water absorption of the material and increasing the waterproof and moisture-proof effect.

This silane is stable at room temperature, but must be protected from water and humid environments to maintain its chemical activity and performance. When using, it should also pay attention to its volatility, take appropriate protection, and ensure safe operation.

What is the production method of 3-methyltrifluorotoluene?

The method of making tribromomethyl ether is based on scientific methods. The method is roughly as follows:

First take an appropriate amount of tribromide. This tribromide needs to be pure and free of impurities. Whether it is of good quality or not depends on the final product. Then, prepare a tribromide agent. This agent should be carefully selected to make it powerful and effective.

Place the tribromide in a clean vessel. This vessel must be temperature-resistant and corrosion-resistant to withstand all kinds of changes. Slowly add the tribromide agent, and the movement and stillness should be carefully observed during the period. At the beginning, there may be a slight ripple, but the reaction gradually intensifies, such as the surge of boiling soup. At this time, the control of temperature is extremely important. If it is too high, it will be destroyed, and if it is too low, it should be slowed down. With a warm fire, the things in the vessel will react with the melting, just like a spring silkworm eating mulberry, slowly and orderly.

When reacting, or all kinds of miscellaneous gas are generated, it must be guided by a delicate method, so as not to make the foul gas overflow and damage the surroundings. And add stirring from time to time, so that Jiaquan and tribromide are mixed and fused infinitely, like glue and paint, so that the reaction is fast and uniform.

When the reaction is completed, it can be seen that the things in the vessel will gradually change, and the color and quality are different from the beginning. Then, by the method of separation, the impurities are removed, and the essence is retained to obtain Jiaquan tribromomethyl ether. This separation method, either by filtration or by distillation, is selected according to its physical properties. If the material is heavy and heavy, the filtration can remove its coarse; if the material is easy to gas and boils differently, the distillation can divide its essence.

In this way, with all kinds of ingenious methods, tribromomethyl ether can be obtained, which all depends on the craftsman's heart as fine as hair, and the skill is exquisite.

3-Methyltrifluorotoluene What are the precautions during storage and transportation?

For methyltriethylsilane, there are many things to pay attention to during storage and transportation.

Safety is the first priority. This is a chemical and has certain dangers. The place of storage should be dry and well ventilated, away from fire and heat sources to prevent fires. Because of its flammability, in case of open flames and hot topics, it may cause the risk of combustion and explosion, so it is forbidden to have fireworks around, and equipped with fire extinguishers.

The second time is packaging. A suitable container needs to be used to ensure sealing. Poor sealing or leakage, which will not only damage the material, but also pollute the environment, and increase safety hazards. The packaging material should be corrosion-resistant and have no chemical reaction with methyltriethylsilane to ensure stable storage and transportation.

In addition, temperature and humidity are also critical. Excessive temperature may accelerate the evaporation of materials, increase pressure and be dangerous; excessive humidity may cause reactions such as hydrolysis, causing material deterioration. Usually it should be stored in a cool place, with temperature control and humidity within an appropriate range.

When transporting, choose a compliant transportation tool. Drivers and escorts must undergo professional training to familiarize themselves with its characteristics and emergency response methods. During transportation, it should be stable, avoid bumps, vibrations, and avoid package damage and leakage.

Also, the logo should be clear. Storage and transportation containers are marked with material names, dangerous characteristics, warnings, etc., so that contacts can be seen at a glance and be careful.

In short, the storage and transportation of methyltriethylsilane is related to safety and quality, and all aspects should not be ignored, so as to ensure the smooth process.