Ammonium Fluoride
Fluoride
Ammonium fluoride
Chemical Formula NH4F
Molar Mass 37.037 g/mol
Appearance colorless, hygroscopic crystals
Odor ammonia - like odor
Density 1.009 g/cm³
Melting Point 98 °C (decomposes)
Solubility In Water soluble
Solubility In Other Solvents soluble in alcohol, insoluble in liquid ammonia
Ph Of Aqueous Solution acidic
Stability unstable in air, decomposes to ammonia and hydrogen fluoride
Hazard corrosive, toxic
FAQ

What is the use of ammonium fluoride?

As described in "Heavenly Works", it can be used for many purposes.

One of them can be used for manufacturing.

One of them can be used for manufacturing. If it is to be transformed, the earth will be more delicate. As the "Heavenly Works" says: "Everyone who makes utensils must first be transformed before they can take shape." The As the saying goes: "If you want to make a sharp blade, you need to start from the beginning, and then overturn it and remove it, so that you can become a profitable tool." Transformation can make the composition of the blade more uniform, thousands of thousands of times, and the blade is more efficient. On top of that, the system can be improved. Ancient goodness is like that of a smelter, or this process is also used. The first step of transformation is to apply the method of exquisite smelting, and it can be used as a magic weapon.

Third, it can be used as a building material. Condensation and solidification are often used, and it can be used to build bones. Such as beam parts, building columns, etc. "Building high and large, the column needs to be transformed to be able to bear the load for a long time." The ancient large-scale buildings, such as cities and towers, are not the main ones, so that they can not fall down. Fourth, it is also indispensable in the construction of tools. The tools need to be solid and durable, and the technology can meet this demand. "The creation of tools can only be deeply cultivated and the land can be harvested." Ploughs, tools and other tools are built with chemical materials, and the edge is hard and wear-resistant, which is conducive to the operation of the problem and helps the family to collect. The ancient farming community, the good quality of the tools is related to the people's livelihood, and the transformation is also very helpful.

What are the physical properties of ammonium fluoride?

In "Tiangong Kaiwu", those who smelt and cast zinc have a unique quality. Zinc is lively and often exists in ores, which are smelted.

Zinc is shiny, white and slightly blue in color, and its appearance is quite unique. Its quality is lighter, compared with other metals, the density is slightly smaller, but it is tough.

The melting point of zinc is not high, about 420 degrees Celsius. It is easy to melt into a liquid state when heated, just like smart water, and can be shaped at will. This property is very beneficial when casting utensils, and can flow everywhere in the mold, making the contours of the utensils clear and the details visible.

And zinc has good corrosion resistance. In the air, it can produce a dense oxide film. If it is a natural shield, it will protect it from rust. This characteristic makes zinc widely used in protective coatings. If galvanized iron sheet is baptized over time, it can still remain intact and not be eroded by wind and rain.

And zinc has good thermal conductivity. If it is warm in winter, it can quickly transfer heat. In cooking utensils and other aspects, it is very popular, which can make food evenly heated and more convenient to cook.

Its electrical conductivity should not be underestimated. Although it is slightly inferior to copper and silver, it can also exert its electrical conductivity under specific circumstances and contribute to the electrical field. In short, smelting zinc has unique physical properties, a wide range of uses, and is of great value in many industries. It is an indispensable material in the world.

What are the chemical properties of ammonium fluoride?

The chemical properties of chemical chemistry
are those obtained by the chemical action of elements. Its chemical properties are special, and it is particularly special in general chemical reactions.

First of all, its oxidation is original. It is often + 2% + 3% in compounds. It is easy to oxidize the original and reverse, and it is oxidized in case of oxidation, such as high acid, heavy acid, etc., among which + 2% can be oxidized by + 3%. For example, the inverse formula: $5Fe ^ {2 + } + MnO_ {4 }^{-} + 8H ^ {+} = 5Fe ^ {3 + } + Mn ^ {2 + } + 4H_ {2} O $, which recognizes the characteristics of oxidation in the reaction. On the contrary, in case of raw materials, such as powder, etc., + 3% of the original can be + 2%, or even. For example, the inverse of the original oxidation: $Fe_ {2} O_ {3} + 3H_ {2}\ stackrel {high }{=\!=\!=} 2Fe + 3H_ {2} O $.

Second, it is acidic. In oxidation, if it exists in the form of oxidation, such as oxidation ($Fe (OH) _ {3} $) oxidation ($Fe (OH) _ {2} $), it is resistant. Oxidation can neutralize and reverse the acid and generate water, such as: $Fe (OH) _ {3} + 3HCl = FeCl_ {3} + 3H_ {2} O $. Oxidation also has a similar reaction, but it is more susceptible to oxidation by oxygen in the air.

Furthermore, oxidation can be reversed. If the oxidized solution is added to the solution containing sodium, the oxidized brown sediment is generated, and the inverse formula is: $Fe ^ {3 + } + 3 OH ^ {-} = Fe (OH) _ {3}\ downarrow $; if the solution contains sodium, it becomes white oxidized pigment, which is rapidly oxidized, and the gray pigment is the most oxidized pigment. The reverse process is: $Fe ^ {2 + } + 2 OH ^ {-} = Fe (OH) _ {2}\ downarrow $, $4Fe (OH) _ {2} + O_ {2} + 2H_ {2} O = 4Fe (OH) _ {3} $.

In addition, the chemical reaction is also active in the coordination antidote. The chemical reaction can be multi-coordinated to form coordination compounds, such as thiocyanide ($SCN ^{-}$ ) to form the blood-colored coordination compound $[Fe (SCN) _ {n}] ^ {3 - n} $ ($n = 1 - 6 $). This reaction is often used in the presence of chemical reactions in the chemical solution.

Therefore, the chemical reaction of the chemical reaction is rich and rich, and the properties of oxidation, acid reaction, precipitation and coordination make it important for chemical domains, industrial and biological processes, and natural environments.

What are the precautions for ammonium fluoride during storage and transportation?




It is also the first important equipment to be hidden. It is advisable to store it in a tight-fitting equipment, and do not make the outer space and water vapor contact. The chemical activity, in case of oxygen and water vapor in the air, is easy to cause melting, and cause it to be damaged. If it is used in the equipment, it is not a good strategy. It is not a good strategy to biochemically combine the equipment or the equipment, and change the original equipment.

Secondly, the place where it is located is essential. It is advisable to store it in a place where it is dry and clear, and where the tide is dark. Tidal water vapor is easy to gather, accelerating the decay of the water; if it does not disperse, it may cause harmful accumulation and endanger the safety of the water.

If it is difficult to make water, it must be firmly placed. It is brittle to make water, and it is easy to cause fragmentation due to bumps and earthquakes. It is used for its own use. The equipment that is used is also dry and dry, and it is not necessary to have a problem, to prevent it from being reversed. And on the way, it is necessary to prevent exposure to rain. The degree of exposure rises, or it leads to the reaction of the water; rain and water vapor invade, and it will be affected.

Furthermore, the person who hides the problem is not its nature. Operate carefully, follow the rules, and do not be reckless. If there is any chemical damage, it will be cleaned up immediately to avoid damage. And hide it, and save the materials and materials to prevent damage.

In the process of transportation, pay attention to the equipment, facilities, placement and human operation, etc., in order to ensure its quantity and avoid accidents.

What are the effects of ammonium fluoride on human health?

"Burnt stone turns into ash, which can remove scale and kill insects. However, it is strong in nature and should be used with caution." This "burnt stone turns into ash" is lime, and its impact on personal health needs to be carefully investigated.

Lime is divided into quicklime and slaked lime. Quicklime is calcined from limestone at high temperature, and its main component is calcium oxide. This substance reacts violently when exposed to water, releasing a lot of heat, and generates calcium hydroxide, which is slaked lime.

If the human body accidentally touches quicklime, it will exude heat when exposed to water, which can easily burn the skin, causing redness, swelling, blistering, and even festering. If quicklime dust is accidentally inhaled, it will react when exposed to water vapor in the respiratory tract, burning the respiratory mucosa, causing cough, asthma, breathing difficulties and other diseases. In severe cases, it can cause respiratory obstruction and endanger life.

Although slaked lime is milder than quicklime, it is still corrosive to a certain extent. Long-term exposure to slaked lime can cause dry, chapped skin and damage the barrier function of the skin. If it enters the eye, it can damage eye tissue, affect vision, and even cause blindness.

In addition, lime in the environment will also have an indirect impact on the human body. For example, around lime plants, the content of lime dust in the air is high. People who live in this environment for a long time inhale too much dust and are prone to lung diseases such as pneumoconiosis.

If lime flows into water bodies, it can cause water bodies to alkalize, affect the survival of aquatic organisms, and then destroy the ecological balance, which indirectly affects human food sources and living environments.

Therefore, when using or touching lime, be extremely cautious and take proper protective measures, such as wearing gloves, masks, goggles, etc., to prevent it from causing damage to human health.