Aluminum fluoride anhydrous main use is what

Aluminum fluoride has a wide range of uses when it is anhydrous. In the field of metallurgy, it is often a flux for aluminum smelting. When covering aluminum smelting, adding this substance can reduce the melting point of aluminum oxide, reduce energy consumption, and increase the output rate of aluminum, which greatly increases the efficiency of aluminum smelting.

In the chemical industry, it is also a key raw material. When preparing fluorinated organic compounds, anhydrous aluminum fluoride can be used as a catalyst to promote the reaction, change the reaction rate and selectivity, and improve the quality and yield of the product.

In the ceramic industry, it is also important. Adding ceramic ingredients can improve the properties of ceramics, such as increasing their hardness, wear resistance and chemical stability, making ceramic products more advantageous in construction, decoration and many other aspects.

In addition, in the electronics industry, anhydrous aluminum fluoride can be used to manufacture electronic components. In the semiconductor manufacturing process, it helps to form a specific crystal structure to ensure the performance and reliability of electronic components, which is indispensable for the development of modern electronic technology.

Aluminum fluoride anhydrous physical properties

Aluminum fluoride is anhydrous, and its physical properties are particularly important. This substance is white in color and powdery, and it looks fine, odorless and tasteless. Its texture is light, and it is held lightly in the hand, like fine sand sliding through the fingers.

When it comes to the melting point, it is quite high, about a thousand degrees, and it must be melted with strong heat. This characteristic makes it able to maintain a solid state in high temperature environments, and it is not easy to melt and deform, so it is quite practical in many high temperature operations.

Its density is moderate, neither extremely light as wadding, nor heavy and difficult to move, making it very convenient to handle and use. And this material is insoluble in water and cannot melt in contact with water, and can maintain its own shape and properties in humid places.

Furthermore, although its hardness is not indestructible, it also has a certain strength and cannot be easily crushed. The fluidity of its powder is very good. If it is inclined to a flat surface, it can spread naturally like water flow and be evenly distributed.

In addition, aluminum fluoride has good electrical insulation, which acts as a barrier to block the passage of current. This property is very useful in the production of electronic related processes. It can ensure the stable operation of the circuit and will not be damaged due to leakage. In short, these physical properties make it indispensable in many fields such as chemical industry, metallurgy, and electronics.

Aluminum fluoride anhydrous chemical properties

Aluminum fluoride is anhydrous, and its chemical properties are specific, which is of great value for investigation. This material is dry, and it responds when it encounters water. Fast-growing hydrate, its shape or change, and energy release. At room temperature, its properties are still stable, but when it encounters heat and strong acids and alkalis, it will change.

When it encounters acid, if it is a strong acid, such as hydrochloric acid and sulfuric acid, it will chemically react. Take hydrochloric acid as an example, it can produce aluminum chloride and hydrogen fluoride gas, which is corrosive and toxic, and this should be done with caution. It also responds to strong bases such as sodium hydroxide, forming aluminate and fluoride.

When heated, anhydrous aluminum fluoride may decompose. If it reaches its melting point, it will melt into a liquid state, and at high temperatures, the structure and properties will change, or the components will evaporate.

Its role in redox reactions varies depending on the situation. In case of strong reducing agents, aluminum ions may be reduced, and fluoride ions may also change in value. However, fluorine has strong oxidation properties, and under normal conditions, fluoride ions are difficult to oxidize.

In organic synthesis, metallurgy and other fields, anhydrous aluminum fluoride is widely used. In organic synthesis, it is often used as a catalyst. With its chemistry, it promotes the reaction to speed up and increase the yield. In the metallurgical industry, the melting point of metals can be reduced, its fluidity can be changed, and metals can be purified and formed.

From the perspective of anhydrous aluminum fluoride, its chemical properties are complex and change due to conditions. It is important to use it in industry and scientific research. Those who use it must be familiar with its properties and be careful to avoid risks before they can make the best use of it.

Aluminum fluoride anhydrous production method is what

There are various methods for making aluminum fluoride anhydrous in ancient times. One method is to combine aluminum hydroxide with hydrofluoric acid. Take the pure aluminum hydroxide first, put it in the utensils, and gradually inject hydrofluoric acid into it. When the two meet, a chemical change occurs, which should be as follows:
\ [Al (OH) _3 + 3HF\ longrightarrow AlF_3 + 3H_2O\]
However, hydrofluoric acid is highly corrosive, and when operating, you must be careful. When it is finished, remove its moisture, and you can get aluminum fluoride anhydrous products. The method of removing water, or using the technique of heating and evaporation, steam the water slowly at a suitable temperature, so as not to overheat, for fear of damaging its quality.

Another method is to react with ammonium fluoride and aluminum chloride. First, a solution of ammonium fluoride is prepared, and then a solution of aluminum chloride is prepared, and the two are mixed. The reaction should be as follows:
\ [3NH_4F + AlCl_3\ longrightarrow AlF_3 + 3NH_4Cl\]
The reaction is completed, and there are by-products of ammonium chloride. Aluminum fluoride anhydrous can be separated from ammonium chloride by means of crystallization and filtration. Ammonium chloride is soluble, while aluminum fluoride is insoluble in anhydrous ones. After filtration, it can be obtained by a suitable method to remove the liquid attached to it, and pure aluminum fluoride anhydrous can be obtained.

In addition, there is also a method of directly combining metal aluminum with fluorine gas. Take pure aluminum, put it in a special vessel, and pass fluorine gas. In case of aluminum and fluorine gas, it will play a role in forming aluminum fluoride anhydrous:
\ [2Al + 3F_2\ longrightarrow 2AlF_3\]
However, fluorine gas is highly toxic and active, and the operation needs to be in a closed and well-protected environment, and the equipment requirements are quite high to prevent its corrosion and leakage.

All kinds of production methods have advantages and disadvantages. According to the required quantity, quality, and available materials and devices, choose the good ones and use them.

Aluminum fluoride anhydrous in storage and transportation need to pay attention to what

Aluminum fluoride is anhydrous, when it is hidden and transported, pay attention to many matters. It is dry and easy to absorb water, so it is suitable to hide in dry places and avoid places where water is wet. If it is in a humid place, it is easy to hydrate, causing its qualitative change and losing its original use.

When it is transported, the first heavy package will be completed. It must be filled with a strong and dense device to prevent it from leaking out. Because aluminum fluoride is anhydrous or irritating, if it is released, it can be harmful when it touches the human body, skin and respiratory tract. And when it is transported, when it absorbs shocks and bumps, the package-free device is damaged.

Also, it is necessary to pay attention to temperature when hiding and transporting. Although it is not extremely sensitive to temperature, it is too high temperature, or it may promote its transformation. It should be stored at room temperature, not near hot fires and hot topics.

Furthermore, in places where Tibet is transported, fireworks should be prohibited. Although aluminum fluoride is anhydrous and non-flammable, it is necessary to prevent accidents and keep it safe, and the prohibition of fireworks should not be ignored. And it should not be placed around other things that are rotten, flammable, and easy to fry, to prevent interaction, and to avoid unexpected risks.

In addition, those who manage the possession and transportation must know its nature, understand its danger, and follow strict regulations. When handling, it is advisable to wear protective equipment, such as gloves and masks, to ensure your own safety. Hidden and transported places should also be prepared with emergency equipment and items, such as eye washing equipment, fire extinguishing equipment, etc., in case of emergency.