Aluminium 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. The smelting of aluminum requires high temperature to melt and electrolyze aluminum oxide, but the melting point of aluminum oxide is extremely high, and the energy consumption is quite huge. Adding this anhydrous aluminum fluoride can reduce the melting point of aluminum oxide, reduce energy consumption, promote the anterograde of electrolysis reaction, and improve the yield and purity of aluminum, which is very powerful.

In the chemical industry, it is also an important catalyst. Many organic synthesis reactions rely on its catalysis to accelerate. For example, the alkylation reaction of aromatics, anhydrous aluminum fluoride can live fossil wax hydrocarbons, which makes the reaction easy to start, and increases the generation rate of products, which greatly contributes to the manufacture of chemical products. < Br >
In the ceramic industry, anhydrous aluminum fluoride is also useful. It can be used as an additive for ceramic glazes to improve the properties of the glaze surface. With its addition, the glaze surface is more shiny, wear-resistant and corrosion-resistant, and can reduce the melting point of the glaze, expand the firing range, facilitate the process control of ceramic production, and make the quality of ceramic products better.

In the electronics industry, it is indispensable in semiconductor manufacturing and other links. Its participation in the preparation of specific electronic materials can regulate the crystal structure and electrical properties of materials, providing support for the miniaturization and high performance of electronic products, and making great contributions to the development of modern electronic technology.

Aluminium fluoride anhydrous production process

Aluminum fluoride is anhydrous, and its production process is essential. First, it starts with hydrofluoric acid and aluminum hydroxide. First, take an appropriate amount of aluminum hydroxide, put it in a special reactor, and slowly inject hydrofluoric acid. When the two meet, they will react, just like the ancient military, resulting in drastic changes. The reaction formula is about: $Al (OH) _3 + 3HF\ longrightarrow AlF_3 + 3H_2O $. However, the temperature needs to be carefully checked. If the temperature is too high, such as the intensity of the fire, the reaction is too fast, and the product may be impure. If the temperature is too low, it will be like a slow flow in winter, the reaction will be slow, and it will take too long.

Second, it can be obtained by pyrolysis of aluminum ammonium fluoride. Aluminum ammonium fluoride is prepared first, which is often formed by the reaction of aluminum sulfate with hydrofluoric acid and ammonia. In the process, aluminum sulfate is like the commander of the Chinese army, and hydrofluoric acid and ammonia are two wings, which react synergistically to obtain aluminum ammonium fluoride. Then the aluminum ammonium fluoride is pyrolyzed in a high-temperature furnace, such as Phoenix Nirvana, which is thermally decomposed into anhydrous aluminum fluoride. The control of the pyrolysis temperature is crucial, just like the heat is used in cooking. If it is too high, the product will be destroyed, and if it is too low, it will not be fully decomposed.

Third, react directly with hydrogen fluoride gas and aluminum powder. Spread the aluminum powder evenly in the reaction vessel and pass the hydrogen fluoride gas. When the two meet, they will react instantly like dry wood Although this path is direct, it is necessary to strictly prevent the leakage of hydrogen fluoride, because of its strong toxicity, if it escapes, it will be very harmful. And the control of the reaction speed is also difficult, and if it is too fast, it is easy to cause explosion.

All kinds of processes have their own advantages and disadvantages. Practitioners should consider the actual situation, such as the abundance of raw materials, the cost, and the quality of products, and carefully select the process to achieve the best effect.

Aluminium fluoride anhydrous Quality Standards

The Quality Standard of Aluminum Fluoride without water is very important. This is the key to all things in the chemical industry.

Its purity standard must be very high. Generally speaking, the purity should be more than 99% to be qualified. The content of impurities must be strictly controlled. Impurities such as iron and silicon should be extremely small, usually the content of iron should not exceed 1/10,000, and the content of silicon should not exceed 2/10,000. If there are many impurities, it will affect its chemical properties and application effect.

Above the appearance, it should be white powder, delicate and uniform, without agglomeration or discoloration. In terms of particle size, there are also regulations. Its average particle size is mostly in a specific range, such as between [X] microns and [X] microns, so as to ensure its good dispersion and can be fully effective in various reactions and applications.

In addition, its chemical stability is also an important standard. Under normal conditions, it should be able to be stored for a long time without obvious chemical changes. When exposed to external factors such as water and heat, its properties must change very little. And its reactivity also needs to meet specific requirements. In some specific reactions, it must be able to participate in the reaction quickly and stably to ensure the smooth production process and the stability of product quality.

In short, the Quality Standards of Aluminum Fluoride Anhydrous, from purity, appearance, particle size to chemical stability and reactivity, are carefully and strictly regulated to meet the needs of many industrial fields.

Aluminium fluoride anhydrous during storage and transportation

If aluminum fluoride is anhydrous, be careful when storing and transporting it. This is a chemical substance, which has different properties and is related to safety and should not be ignored.

The first word is that for storage, a dry place must be selected. Because it is easy to change in contact with water, if it is in a damp place, it absorbs moisture and changes its quality, and its efficacy or physical properties are damaged. It should be stored in a sealed container to prevent moisture from invading. And the material of the container must be suitable, and it should not be combined with aluminum fluoride and anhydrous phase, causing damage and leakage of the device.

When handling, handle it with care, and do not make shocks fall. If the packaging is damaged, the aluminum fluoride will spill out without water, or cause pollution, and its properties may harm humans, animals, damage and the environment.

Furthermore, the storage and transportation place should be fire-resistant. Although it is not flammable, if there is a fire hazard around it, or chemical changes due to high temperature, it will cause accidental damage. Therefore, fire protection equipment must be placed on the side to avoid danger.

In addition, clear identification is essential. In the storage place and the handling equipment, it is necessary to clearly mark "aluminum fluoride without water" and related warnings, such as "moisture-proof" and "handle with care", so that everyone who sees it knows its nature and pay attention.

In short, when aluminum fluoride is stored and transported without water, drying, sealing, light transportation, fire protection, and clear labels must be comprehensive in order to ensure its quality and safety and avoid all risks.

Aluminium fluoride anhydrous compared to other similar products

Aluminum fluoride is anhydrous, which has many advantages over other similar products. First, its purity is quite high, and there are few impurities. This anhydrous state makes the combination of fluorine and aluminum in it pure, with little foreign interference. In various industrial processes, if it is the genus of electronics and chemical industry, high-purity materials can ensure high-quality products and greatly increase yield. For example, in semiconductor manufacturing, high-purity materials are required. This anhydrous aluminum fluoride can meet its strict quality requirements to help create fine circuits, and avoid the risk of circuit failure caused by impurities.

Second, its chemical activity is very good. In the absence of water, it can quickly integrate with other substances during chemical reactions. In the process of smelting aluminum in the metallurgical industry, it can promote the electrolysis of alumina, reduce energy consumption and improve the yield. Cover because of its activity, can quickly start the reaction, and make the reaction to produce aluminum, saving time and increasing efficiency, which is important for the industry.

Third, strong thermal stability. In case of high temperature and not easily decomposed, it can be used as an effective additive in processes that require high temperature treatment, such as ceramic firing and refractory material preparation. At high temperature, its chemical properties remain unchanged, which can help the material to obtain excellent thermal properties, increase its fire resistance and heat insulation effect, so that the product can still be stored for a long time in the harsh environment of high temperature.

Fourth, it is convenient for storage and transportation. No water form, not easy to deliquescence, compared with aqueous analogs, can be stored for a long time without deterioration. During transportation, there is no need for special moisture-proof measures to reduce logistics costs and risks. This makes it easier for the industry to manage materials, not subject to moisture rot, and material loss is also reduced.

From this perspective, aluminum fluoride is anhydrous. Compared with other similar products in terms of purity, activity, thermal stability, storage and transportation, it has outstanding advantages and is of great value in the industrial field.