Chemical Formula | AlF3 |
Molar Mass | 83.9767 g/mol |
Appearance | white crystalline powder |
Odor | odorless |
Density | 3.18 g/cm³ |
Melting Point | 1291 °C |
Boiling Point | 1272 °C (sublimes) |
Solubility In Water | insoluble |
Solubility In Other Solvents | soluble in hydrofluoric acid, sulfuric acid |
Crystal Structure | cubic |
Acidity Basicity | weakly acidic in water |
Stability | stable under normal conditions |
What are the main uses of Aluminum Aluminium Fluoride?
Aluminum (Aluminum or Aluminium) and aluminum fluoride (Aluminum Fluoride) are widely used and are crucial in many fields.
In the metallurgical field, aluminum is light, has good conductivity and corrosion resistance, and is often used in the manufacture of various alloys. Aluminum and aluminum fluoride play an important role in the aluminum smelting process. Aluminum fluoride can regulate the properties of the electrolyte for aluminum smelting, reduce the melting point of the electrolyte, and improve its conductivity. In this way, it can reduce the energy consumption of aluminum smelting and improve production efficiency. Aluminum alloy has excellent properties and is widely used in aerospace, such as the manufacture of aircraft fuselages, wings and other components. With its lightweight and high strength characteristics, it can reduce aircraft weight and improve flight performance. In the field of automobile manufacturing, it is also widely used to reduce body weight and improve fuel efficiency.
In the chemical industry, aluminum fluoride is often used as a catalyst for organic synthesis. It can effectively catalyze many organic reactions, promote the smooth progress of the reaction, and improve the yield of products. The synthesis of many fine chemical products relies on the catalytic action of aluminum fluoride. Aluminum compounds are also commonly used raw materials in chemical production, and can be used to prepare various aluminum salts for the production of water purifiers, flame retardants, etc.
In the field of electronics, aluminum is often used in the manufacture of electronic components, such as wires for integrated circuits, capacitor electrodes, etc. In the electronics industry, aluminum fluoride is also used in the preparation of some special materials, helping to improve the electrical properties of materials and meet the high performance requirements of electronic equipment.
In the field of construction, aluminum and its alloys are widely used in building doors, windows, curtain walls, etc. because of their beauty, durability and ease of processing. They have strong corrosion resistance, can maintain their appearance for a long time, and have good processing performance. They can be made into a variety of shapes. In the production and application of building materials, they contribute greatly to creating a comfortable, safe and beautiful building environment.
What are the Physical Properties of Aluminum Aluminium Fluoride
The physical properties of aluminum (Aluminum or Aluminium) and aluminum fluoride (Aluminum Fluoride) have the following characteristics.
Aluminum is light in texture, with a density of about 2.7g/cm ³, which is lightweight among metals. Its color is silver-white and shiny, just like the moon, and the light can be seen from people. This metal has excellent extensibility. It can be ground into foil as thin as a cicada's wing, and can also be drawn into filaments, which are as thin as spider silk. Its electrical and thermal conductivity is outstanding, which can be compared with many good conductors, so it is often used in electrical and heat dissipation materials. And the surface of aluminum is prone to dense oxide film. If this film is a strong barrier, it will protect it from corrosion, so that aluminum can survive for a long time at room temperature and humidity, without rust damage.
Aluminum fluoride is white powder, just like the first snow in winter, pure and white. Its melting point is quite high, about 1291 ° C, like an indestructible furnace, which requires a very high temperature to melt. Aluminum fluoride is insoluble in water, and it is like a hermit in water. It is difficult to melt in the world. Its chemical properties are stable. Like a calm old man, it is not easy to react violently with common substances. It can provide a stable environment for many chemical reactions in industrial production. It is an indispensable aid in the aluminum smelting industry.
These two are unique in nature, and they both display their extraordinary capabilities in various fields of industry and life, which are used by the world and benefit all people.
Chemical Properties of Aluminum Aluminium Fluoride
Aluminum (Aluminum or Aluminium) and aluminum fluoride (Aluminum Fluoride) are chemical substances, each with unique chemical properties.
Aluminum is also a metal element, which has many excellent characteristics. Its texture is light, but it has high strength, so it is often used in aerospace, automobile manufacturing and other fields, which can reduce the weight of equipment and improve efficiency. Aluminum surface is prone to form a dense alumina film, which can prevent further oxidation of aluminum, resulting in excellent corrosion resistance. It is widely used in building materials, such as aluminum alloy doors and windows, which are durable. And aluminum is a good conductor of heat and electricity, and it is commonly used in power transmission and heat dissipation equipment, such as wires, radiators, etc. In addition, aluminum has good ductility and can be made into aluminum foil for food packaging.
Aluminum fluoride, a white crystalline powder, is mainly used in the aluminum smelting industry. In the process of aluminum smelting, it acts as a flux, which can reduce the melting point of aluminum oxide, reduce the energy consumption of aluminum smelting, and greatly improve the efficiency of aluminum smelting. Aluminum fluoride is relatively stable chemically, and it is not easy to react with most substances at room temperature and pressure. However, it can also participate in some chemical reactions at high temperatures and under specific conditions such as strong acids and bases. For example, it can react with strong bases to form corresponding aluminate and fluoride. Its stability allows it to play a role in the aluminum smelting environment. At the same time, during storage and use, it can maintain its chemical stability by avoiding contact with special substances such as strong acids and bases.
What is the Production Method of Aluminum Aluminium Fluoride?
The method of making aluminum (Aluminum or Aluminium) and aluminum fluoride (Aluminum Fluoride) was a special way in ancient times, and it is different now.
The ancient method of making aluminum was extremely difficult at first. Cover aluminum is active and often exists in compounds. In the past, people wanted to obtain pure aluminum, and it was very difficult. At first, it could only be obtained by chemical replacement, but the result was impure and small. After Sir Humphrey Davy, he used electrolysis to explore it, but the method was complicated and expensive. Until Charles Martin Hall and Paul Erou independently invented the electrolysis method of cryolite-alumina molten salt, which made it feasible to produce large quantities of aluminum. This is done by melting alumina ($Al_2O_3 $) with cryolite ($Na_3AlF_6 $), passing direct current in it, and obtaining aluminum at the cathode. The main point of the reaction is that in the molten state of alumina at high temperature, the aluminum ion obtains electrons and precipitates aluminum: $Al ^ {3 + } + 3e ^ -\ longrightarrow Al $.
As for the production method of aluminum fluoride, one can be obtained by reacting aluminum hydroxide with hydrofluoric acid. First, aluminum hydroxide ($Al (OH) _3 $) interacts with hydrofluoric acid ($HF $), and the reaction formula is: $Al (OH) _3 + 3HF\ longrightarrow AlF_3 + 3H_2O $. After the reaction is completed, through evaporation, crystallization and other processes, aluminum fluoride can be obtained. Second, hydrogen fluoride gas can also be used to react with aluminum trichloride. At high temperature, hydrogen fluoride ($HF $) and aluminum trichloride ($AlCl_3 $) gas phase reaction: $AlCl_3 + 3HF\ stackrel {high temperature }{=\!=\!=} AlF_3 + 3HCl $, this reaction needs to be carried out in a special high temperature reactor, the product is separated and purified to obtain pure aluminum fluoride.
What are the precautions for Aluminum Aluminium Fluoride during use?
The husband uses aluminum and aluminum fluoride for use, and there are many things to pay attention to.
First of all, protection is the most important. Aluminum fluoride is corrosive, and it can hurt the skin and eyes when touched. Therefore, when handling, it is necessary to wear protective equipment, such as gloves, goggles, protective clothing, etc., to prevent it from harming the body. And in a well-ventilated place, if in a closed place, the air dissipated by aluminum fluoride can be inhaled into the lungs, or cause respiratory diseases.
Second, abide by the method of handling. When using aluminum and aluminum fluoride, follow the procedures. The amount of medicine, the temperature of the reaction, and the speed of stirring are all fixed. There is a slight difference, or the reaction is not good, or the risk of an accident. If the reaction temperature is too high, it may cause a violent reaction and cause danger.
Furthermore, attention should also be paid to storage. Aluminum should be placed in a dry place to avoid water and moisture and prevent its oxidation. Aluminum fluoride should be sealed and stored to prevent it from being damp and causing changes in properties. If stored improperly, both may damage its effectiveness and affect subsequent use.
In addition, waste disposal should not be ignored. Use up the remaining aluminum chips and waste liquid containing aluminum fluoride. Do not discard them at will. When in accordance with environmental protection regulations, properly handle them to prevent pollution of the environment and harm to all living beings.
In short, the use of aluminum and aluminum fluoride, protection, handling, storage and disposal must be paid attention to in order to ensure safety and promote efficacy.