Ammonium Silifofluoride

Ammonium fluorosilicate, also known as ammonium fluorosilicate, has a wide range of main uses.
In the industrial field, first, it is often used as a glass etchant. On the glass, ammonium fluorosilicate is etched to form fine pictures or specific textures, just like skilled craftsmen use ingenious finishes to make the glass have a different kind of beauty, which is indispensable in decorative and craft glass manufacturing. Second, metal surface treatment is also commonly used. It can form a protective film on the metal surface and enhance its corrosion resistance. It is like a metal with a layer of tough armor, and is frequently used in hardware manufacturing and other industries.
In agriculture, ammonium fluorosilicate can be used as an insecticide. It can remove pests, protect crop growth, and protect the harvest of farmland. And when used in moderation, it can be used as a trace element fertilizer to supplement silicon, fluorine and other elements for crops, promoting their thriving growth, just like a good doctor to nourish crops.
In chemical production, it is an important raw material for the preparation of other fluorides. After a series of chemical reactions, a variety of fluoride products can be derived, such as ammonium fluoride, which plays a key position in the chemical industry chain, such as an important link in the chain, connecting the production of various chemical products.
In summary, ammonium alum fluorosilicate is widely used in many fields such as industry, agriculture, and chemical industry. It is an important substance to promote the development of various industries.

Ammonium Silifofluoride (Ammonium Silifofluoride), its physical and chemical properties are as follows:
The appearance of this substance is often white crystalline powder, like fine snow, light and delicate. Its taste is slightly salty, stable in the air, and not easy to drift with the wind.
In terms of its solubility, it is easily soluble in water, but soluble in water, just like salt melts in soup, its aqueous solution is acidic, just like a clear spring containing acid, slightly acidic. And this solution is corrosive, touching like a blade, it can erode other things, so be careful when using it.
Its melting point is quite unique, and when heated to a certain temperature, it will melt like ice and snow, and turn into a liquid. When heated, it is easy to decompose, like a fire burning material, falling apart, releasing toxic hydrogen fluoride gas, which is pungent and smelly, like a mountain on the back, and harmful to the human body and the environment.
In addition, ammonium alum is oxidizing, just like a warrior holding a sword, and can react with many reducing substances. In case of exposure, it is like dry wood and fire, causing drastic changes. It has a wide range of uses in industry, but due to its special physical and chemical properties, strict regulations must be followed for use and storage to prevent harm.

Ammonium Silifofluoride (Ammonium Silifofluoride), during storage and transportation, many matters should be paid attention to.
First words storage, this agent should be placed in a cool and dry place. Because of its susceptibility to moisture, if it is in a humid place, it may cause deliquescence and damage its quality. And the warehouse temperature should also be controlled, not too high, or cause changes in its chemical properties if it is too high. The warehouse must be well ventilated to avoid the accumulation of harmful gases. In addition, it should be placed separately from acids and alkalis. Both acids and alkalis can react chemically with ammonium alum. Once contacted, it may be dangerous or even cause explosion. At the same time, keep away from fire and heat sources to prevent accidents caused by sudden temperature rises.
As for transportation, the container containing alum ammonium must be solid and sealed. Vehicles on the way should be smooth and not too bumpy to prevent material leakage due to damage to the container. When transporting, it should not be mixed with other contraindications. The escort must be familiar with its characteristics and emergency measures. In case of leakage, they can deal with it quickly. If the material leaks accidentally, the scene should be isolated as soon as possible and personnel should be restricted from entering and leaving. Emergency responders need professional protective equipment and should not expose themselves to danger. Small leaks can be collected in a dry, clean, covered container with a clean shovel. For large leaks, embankments or pits need to be built for containment, and pumps should be transferred to a tanker or special collector for recycling or transportation to a waste treatment site for disposal. In this way, storage and transportation are guaranteed.

Ammonium fluorosilicate (Ammonium Silifofluoride), its preparation method is as follows:
It is often obtained by the interaction of fluorosilicic acid with ammonia or ammonium carbonate. Fluorosilicic acid can be obtained from the by-products of the phosphate fertilizer industry. During the manufacture of phosphate fertilizer, phosphate rock coheats with sulfuric acid, and the fluorine element is mostly converted into silicon tetrafluoride and escapes, and the silicon tetrafluoride is absorbed by water to obtain a fluorosilicic acid solution.
When fluorosilicic acid interacts with ammonia, the chemical equation of the reaction is roughly as follows: $H_ {2} SiF_ {6} + 2NH_ {3}\ cdot H_ {2} O\ longrightarrow (NH_ {4}) _ {2} SiF_ {6} + 2H_ {2} O $. Among them, ammonia participates in the reaction in the state of ammonia water, and the two are mixed. After sufficient reaction, ammonium fluorosilicate is formed in the solution.
If ammonium carbonate reacts with fluorosilicic acid, the process is also similar. When ammonium carbonate encounters fluorosilicic acid, a metathesis reaction occurs to form ammonium fluorosilicate, and by-products such as carbon dioxide and water are produced at the same time. The reaction formula can be expressed as: $H_ {2} SiF_ {6} + (NH_ {4}) _ {2} CO_ {3}\ longrightarrow (NH_ {4}) _ {2} SiF_ {6} + H_ {2} O + CO_ {2}\ uparrow $.
After the reaction is completed, various steps such as evaporation concentration and cooling crystallization are often required. When evaporating, the solvent in the solution is gradually reduced and the solute concentration is gradually increased; when cooling, the solubility of ammonium fluorosilicate decreases, and then it crystallizes from the solution. Then by centrifugation and drying, pure ammonium fluorosilicate products can be obtained. This is a common manufacturing method of ammonium fluorosilicate.

The author of "Tiangong Kaiwu" is the culmination of craftsmanship and technology, and it is also an ancient book of Chinese wisdom. There is a question today: "What is the impact of ammonium fluorosilicate on the environment and the human body?", I should answer it in ancient Chinese.
Ammonium fluorosilicate has an impact on the environment that cannot be ignored. If released into the atmosphere, or dissolved with water vapor, it will fall on the earth and damage the quality of the soil. When it enters rivers, lakes and seas, the ecology of water will also suffer from it. Aquatic things, or due to changes in water quality, are difficult to survive. Aquatic plants may be poisoned and withered by it; fish and shrimp, etc., may die from it. And the soil is contaminated by it, and the fertility is gradually lost, and the yield of crops will also be damaged.
As for the human body, the harm of ammonium fluorosilicate is also clear. If a person touches it carelessly, the skin may have erythema and blisters, and the pain is unbearable. If you inhale its breath, the respiratory tract will be invaded, and the symptoms of cough and asthma will occur. What's more, it will damage the lungs, make it difficult to breathe, and endanger your life. If you take it by mistake, the stomach will be rotten, vomiting, abdominal pain will not stop, and the functions of the organs will be disordered, and the consequences will be unimaginable.
Furthermore, long-term exposure to ammonium fluorosilicate will cause fluoride to accumulate in the body and cause bone diseases. Bone is brittle, mobility is inconvenient, and even the body is hunched, which is miserable.
Therefore, when using ammonium fluorosilicate, be careful to prevent it from escaping from the environment and preventing personal injury. In this way, the safety of the environment and the health of the person can be guaranteed.