Potassium fluoride solution what is the use

The author of "Tiangong Wuwu" was written by Song Dynasty in the Ming Dynasty. It was a matter of a hundred industrial techniques, but it did not mention the use of "Potassium + fluoride + solution" (that is, fluoride solution). Today, its possible uses are described in ancient Chinese.

Fluorinated solutions are effective in the chemical field. First, they can be used in metallurgy. In the metallurgy of some metals, fluorinated solutions can help remove gold and improve gold. For example, in the metallurgy of rare gold, it may be able to improve the biochemical reaction of gold in the stone, so that the gold can be precipitated or precipitated by precipitation, so that the gold can be improved. For example, it is used to remove coarse and refine, to obtain gold, and to manufacture equipment.

Second, it also plays a role in chemical synthesis. In the synthesis of some special compounds, fluorinated solutions can be used as catalysts or reaction media. Catalysts can change the reaction rate without being consumed by themselves, so that the original production or slow rate can be reversed. For example, the synthesis of a high polymer or fluoride, fluorinated solution or can promote the rearrangement and addition of molecules, so that the way of synthesis is more transparent, so as to form the required chemical products, widely used in many aspects such as oil, materials, etc.

Third, the surface treatment should not be ignored. In order to treat the surface of gold, a dense film can be formed. This film can enhance the anti-corrosion properties of gold, so that gold utensils can survive for a long time without rot under rain and invasion. If the container is treated with a fluorinated solution, it can be prevented from burning, such as wearing a solid armor, which extends the life of the container, making it difficult to burn in daily use and storage.

Potassium fluoride solution is determined

To measure the concentration of potassium fluoride solution, you can follow the following methods. Prepare a clean volumetric flask, pipette, and analytical balance. Use the analytical balance to accurately weigh an appropriate amount of potassium fluoride solid and note its quality. Place the solid in a small beaker, add an appropriate amount of distilled water, and stir it with a glass rod to make it completely soluble. Then, use a pipette to remove a certain volume of the initial solution and inject it into a washed and dry volumetric bottle. Then slowly add the distilled water to the scale line of the volumetric bottle. During this period, you need to look at the scale head-on, and do not make the solution too full or not full. Cover the bottle and turn the volumetric bottle upside down several times to mix the solution evenly.

Titration can also be used. Choose a suitable indicator, such as phenolphthalein. Take a standard acid solution of known concentration, such as hydrochloric acid, and add it dropwise with an acid burette to a conical bottle containing the potassium fluoride solution. When titrating, shake the conical bottle while dripping, paying attention to the change in the color of the solution. When the color of the solution changes and does not return to color within half a minute, it is the end point of titration. Record the volume of the standard acid solution consumed at this time. According to the stoichiometric relationship of the reaction, the concentration of the potassium fluoride solution can be obtained by calculation. When operating, be careful to ensure the accuracy of the measurement to obtain reliable results.

Potassium fluoride solution storage precautions

For a potassium fluoride solution, you should not be careless in its preservation. First of all, when checking its container, it is appropriate to use a corrosion-resistant utensil, which belongs to glass. If it contains silica, it may react with potassium fluoride of strong alkali, so plastic utensil is better, because it is corrosion-resistant and does not react with things.

It is stored in a cool place to avoid heat and light. Heat can promote its chemical reaction, and light can also cause some substances to decompose or deteriorate. In a potassium fluoride solution, high temperature or light exposure may change its properties and damage its quality.

It is also necessary to prevent it from mixing with other substances. Potassium fluoride solution is active and easy to react with a variety of substances. Such as metal things, or cause a replacement reaction, damage its solution, and dangerous. Therefore, it is safe to be alone in a room, isolated from other things.

Furthermore, the lid must be tight. Potassium fluoride solution, or volatile, or moisture absorption, is not tightly sealed, and its concentration gradually changes, affecting its use. The lid is tight, which can prevent air from entering and ensure the stability of its composition.

When stored, it also needs to be observed frequently. Observe its color, taste, and state. If there is any abnormality, such as discoloration, odor, or precipitation, it will be known that its quality has changed and cannot be reused. This is all for those who should pay attention to the preservation of potassium fluoride solution, and do it with caution to ensure the quality and safety of the solution.

Potassium fluoride solution is harmful to human body

The harm of potassium fluoride solution to the human body cannot be underestimated. Potassium fluoride is a fluoride-containing compound, and its solution has several dangers.

The first to bear the brunt, if this solution is ingested orally, it is extremely harmful. Excessive accumulation of fluoride ions in the body can tightly combine with calcium ions, causing a sudden drop in blood calcium. In this case, the excitability of nerves and muscles increases greatly, or it can cause convulsions, spasms, and even life-threatening. And excessive fluoride into the body also has strong irritation to the gastrointestinal tract, which can cause nausea, vomiting, abdominal pain, diarrhea, and other discomfort. In severe cases, it may damage the gastrointestinal mucosa and cause bleeding.

Furthermore, there is also a risk of skin contact. Potassium fluoride solution is corrosive and comes into contact with the skin, which can burn the skin, cause redness, swelling, pain, and even ulceration. If not properly treated in time, wounds are highly susceptible to infection, protracted and difficult to heal, and may leave scars, affecting appearance and skin function.

As for inhaling its volatile aerosol through the respiratory tract, it should not be ignored. Fluoride aerosol enters the lungs, which can irritate the mucosa of the respiratory tract, causing cough, asthma, breathing difficulties, etc. Long-term exposure to this environment, fluoride accumulates in the lungs, or causes lung diseases, such as pulmonary fibrosis, which impairs the normal function of the lungs and causes respiratory decline.

In addition, potassium fluoride solution also affects teeth and bones. Although an appropriate amount of fluoride is good for dental health, excessive exposure can cause fluorosis in people during the developmental period, with chalk or tan markings on the surface of the teeth, which affects the appearance and strength of the teeth. In the bones, it can cause bone hardening, bone hyperplasia, limited joint movement, and even affect the normal development and metabolism of the bones, causing bone deformities, which brings great inconvenience to the life and movement of patients.

Potassium fluoride solutions are widely used in which industries

Potassium fluoride solution is widely used in various industries.

In the metallurgical industry, its role is significant. In the smelting of aluminum, potassium fluoride solution can be used as a flux. Because the melting point of aluminum ore is quite high, direct smelting consumes a lot of energy. And potassium fluoride solution can reduce the melting point of alumina, making the smelting process smoother, energy consumption can be reduced, and the purity of aluminum can be improved. This is because it can interact with alumina to change its crystal structure and make it melt at relatively low temperatures. Therefore, in the metallurgical industry, it is a key additive to improve production efficiency and product quality.

In the chemical industry, it is also indispensable. In the preparation of fluorinated compounds, potassium fluoride solution is often an important raw material. The synthesis of many fluorine-containing fine chemicals, such as fluororubbers and fluorine-containing pharmaceutical intermediates, requires the introduction of fluorine with the help of potassium fluoride solutions. Due to the suitable activity of fluoride ions in potassium fluoride solutions, it is easy to participate in various chemical reactions. Through carefully designed reaction paths, fluorine-containing organic molecular structures can be precisely constructed, helping the chemical industry to produce many high-performance and high-value-added products.

In the electronics industry, potassium fluoride solutions are also wonderfully useful. In the semiconductor chip manufacturing process, it can be used in the etching process. Chip manufacturing requires fine processing of silicon wafers to build complex circuit structures. Potassium fluoride solutions can selectively react with specific substances on the surface of silicon wafers to precisely remove unnecessary parts, thus shaping accurate chip circuit patterns. This etching process has a significant impact on chip performance, and potassium fluoride solution has become an important material for chip manufacturing in the electronics industry due to its good etching selectivity and controllability.

Therefore, potassium fluoride solution plays a key role in metallurgy, chemical industry, electronics and other industries, and is of great significance to promote the development of various industries.