What is the main use of Aluminum potassium fluoride?

Aluminum potassium fluoride, namely potassium fluoroaluminate, has a wide range of main uses.

In the field of metallurgy, potassium fluoroaluminate is often used as a refining agent and modifier for aluminum and aluminum alloy casting. During refining, it can absorb and remove suspended inclusions in the aluminum liquid, making the aluminum liquid more pure, thereby improving the quality of aluminum alloys. As a modifier, it can change the shape and distribution of certain phases in aluminum alloys and optimize the mechanical properties of the alloy, such as strength, hardness and toughness. When casting aluminum alloy parts, adding an appropriate amount of potassium fluoroaluminate can make the grains of the casting finer and more uniform, reduce casting defects, and improve the quality and performance of the casting.

In welding, potassium fluoroaluminate is an important flux for welding aluminum and aluminum alloys. During the welding process, it can effectively remove the oxide film on the surface of the weldment, reduce the surface tension of the molten pool, enhance the wettability of the liquid metal to the weldment, promote a smoother welding process, reduce welding defects such as pores and slag inclusions, improve the quality and strength of the welded joint, and ensure the reliability and stability of the welded part.

In addition, in the glass industry, potassium fluoroaluminate can be used as a flux. It can reduce the melting point of glass, accelerate the melting process of glass, save energy consumption, and improve some properties of glass, such as adjusting the thermal expansion coefficient of glass, improving the chemical stability of glass, etc., which helps to produce glass products with specific performance requirements.

Potassium fluoroaluminate plays an indispensable role in many industrial fields such as metallurgy, welding, and glass, and promotes the development and progress of related industries.

What are the physical and chemical properties of Aluminum potassium fluoride

The physicochemical properties of aluminium, potassium and potassium fluoride are as follows:

Aluminum, with a silvery white luster, light texture and good ductility. Its melting point is about 660 degrees Celsius, and its boiling point is 2,460 degrees Celsius. Chemically active, it is easy to form a protective film of alumina in the air to prevent further oxidation. It can react with acids and bases, such as reacting with hydrochloric acid to produce aluminum chloride and hydrogen, and reacting with sodium hydroxide to obtain sodium metaaluminate and hydrogen.

Potassium is an extremely active metal, with a silvery white color and soft texture. The melting point is about 60 degrees Celsius, and the boiling point is 760 degrees Celsius. The chemical properties are extremely active. It reacts violently in contact with water. Potassium hydroxide and hydrogen are generated, and a large amount of heat is released during the reaction, causing hydrogen to burn and the flame to be light purple.

Potassium fluoride is a colorless cubic crystal with a salty and spicy taste. The melting point is about 850 degrees Celsius, easily soluble in water, and the aqueous solution is alkaline. It is corrosive to a certain extent and can corrode silicon-containing substances such as glass.

These three have unique physical and chemical properties. They have important uses in many fields such as chemical industry and materials. Due to their differences in properties, corresponding specifications and requirements must be followed in storage and use to ensure safe and effective use.

What is the production method of Aluminum potassium fluoride?

The method of making aluminum-potassium fluoride has never been heard of in ancient times, but today's scholars can deduce it according to chemical theory. To make aluminum-potassium fluoride, you first need to prepare raw materials for aluminum, potassium and fluoride.

In chemical theory, aluminum, a genus of metals, is often stored in the state of aluminum salts. Potassium is also a metal, and its compounds are mostly soluble in water. Among fluorides, hydrogen fluoride or its salts are commonly used.

One method is to use aluminum salts, potassium salts and fluoride in a special utensil. When selecting the utensil, you need to check its material and do not react with various substances to avoid bad quality. When the temperature control is appropriate, the temperature is variable, depending on the nature of the raw materials used.

If aluminum sulfate is used as the aluminum source, and potassium fluoride is the fluorine source and the potassium source, in the solution, the ions are mixed. Aluminum ions ($Al ^ {3 + }$）、 potassium ions ($K ^ {+} $) meet fluoride ions ($F ^ {-} $), or form aluminum potassium fluoride. However, the pH of the solution should be adjusted, and both peracid and alkali are hindered.

In another way, aluminum fluoride can be prepared first, and aluminum powder can be reacted with anhydrous hydrogen fluoride at high temperature and protected by inert gas to obtain aluminum fluoride. Then, aluminum fluoride can be reacted with potassium hydroxide solution to obtain aluminum potassium fluoride. When

reacting, it is necessary to strictly observe the process and observe the phenomenon. Whether there is gas, whether the color changes, and whether the precipitation occurs. After the reaction is completed, the insoluble matter can be removed by filtration. Then evaporation and crystallization are used to precipitate aluminum-potassium fluoride. After crystallization, the pure aluminum-potassium fluoride can be obtained by washing and drying to purify its quality.

Aluminum potassium fluoride in the use of what are the precautions

During the use of aluminum (Aluminum), potassium (Potassium) and potassium fluoride (Potassium Fluoride), there are many matters that need to be paid attention to.

First, it is related to safety protection. When operating these three substances, you need to wear appropriate protective equipment. If potassium fluoride has certain toxicity, it will cause damage to the human body if it touches the skin or is accidentally inhaled. Therefore, be sure to wear gloves, goggles and masks when operating to prevent potassium fluoride powder from entering the respiratory tract or contacting the skin. Under certain conditions, aluminum powder may also form a flammable and explosive dust environment. Avoid dust during operation, and keep away from fire sources and high temperature areas to prevent explosion hazards.

Second, pay attention to its chemical properties. The chemical properties of potassium are extremely active, and it will react violently when exposed to water, generating potassium hydroxide and hydrogen, and releasing a lot of heat. Therefore, when using potassium, special attention should be paid to avoid its contact with water, and it should be stored in a dry environment. Although aluminum is relatively stable, it will chemically react in acidic or alkaline environments. When used together with potassium fluoride, the acidity and alkalinity of the system should be considered to avoid unnecessary chemical reactions caused by improper acid-base conditions, affecting the use effect or causing danger.

Third, about the storage method. Aluminum should be stored in a dry place to prevent moisture oxidation. Potassium needs to be stored in kerosene or paraffin oil to isolate air and water and prevent it from reacting with oxygen and water vapor in the air. Potassium fluoride should be sealed and stored, because it is easy to absorb moisture, and it may affect its chemical properties and performance after moisture.

Fourth, the operating specifications during use are also very critical. When using these substances, special tools should be used to avoid cross-contamination between different substances. When conducting chemical reactions involving them, it is necessary to strictly follow the operating procedures and control the reaction conditions, such as temperature, concentration, reaction time, etc., to ensure that the reaction can proceed as expected, and to avoid safety accidents caused by improper operation.

Aluminum potassium fluoride market price

Aluminum (Aluminum), potassium (Potassium) and fluoride (Fluoride) related products are on the market, and their prices vary depending on quality, quantity, and source.

Among aluminum fluoride, industrial users, if the purity is ordinary, buy in bulk, and the price per ton may be between thousands of dollars. However, if it is used in high-end electronics and other fine areas, the purity requirements are strict, and the price is several times higher.

Potassium fluoride also has different categories. Common agricultural potassium fluoride fertilizers are used to nourish the land. Due to differences in potassium content and formula, the price of each bag ranges from a few dollars to tens of dollars. And high-purity potassium fluoride used in special chemical synthesis is expensive, up to several dollars per gram.

As for the aluminum-potassium fluoride compound, it is difficult to prepare, and its use is mostly for scientific research or high-end industry, and its price is even higher. In fine chemical experiments, if a small amount of high purity is required, the price per milligram or a hundred times that of ordinary industrial materials.

The inter-market price varies with supply and demand. If the raw materials are abundant, the production capacity will increase, and the price may decrease; when the raw materials are scarce, the demand will surge, and the price will rise. Merchants often look at the market situation and adjust their prices for profit. Therefore, when inquiring about the price, they must carefully review the category, quality, quantity and market conditions before confirming the price.