What are the main application fields of erbium fluoride?

Lead group compounds are widely used and have obvious effects in many fields.

One of them is in the field of metallurgy. Among the lead group, lead can be used in metallurgical operations such as silver smelting and alchemy. Lead can capture precious metals such as gold and silver in ores, and then it is refined to purify gold and silver. Such as ancient metallurgy, lead is often used to collect gold and silver. Because of its good affinity with gold and silver, it can be effectively enriched, and helps gold and silver to separate from complex ores.

The second is in the chemical industry. Lead compounds can be used as pigments, stabilizers, etc. Lead white, that is, basic lead carbonate, was once an important white pigment with a warm color. It is used in painting, painting, lacquer ware and other paintings. Its color does not fade for a long time. Lead salt stabilizers can enhance the stability of plastics and other polymer materials, delay their aging and degradation, and increase the durability of plastic products.

The third is in the field of electronics. Lead compounds are important in the production of electronic components. Such as lead-acid batteries, in which lead sulfate participates in electrochemical reactions, realizes the storage and release of electrical energy, provides stable power for many devices, and is indispensable in automobile start-up, emergency power supply, etc.

The fourth is in medicine. In ancient times, lead compounds were used as medicine. Although the application of lead is limited due to the toxicity of lead, in the past, such as lead dan (lead trioxide), it was used as a surgical plaster. It has the effect of detoxifying and building muscles, astringent sores, and can help sores heal.

Fifth, in the construction field. Lead has good corrosion resistance and is often made into lead plate, which is used for building waterproofing, radiation protection, etc. In some special buildings, such as radioactive laboratories, hospital radiology departments, etc., lead plate can effectively block rays and protect personnel safety; waterproof on roofs, lead plate is durable and can resist wind and rain erosion.

What are the physical properties of erbium fluoride?

For lead compounds, their physical properties are specific. The color is mostly plain white, and they are scattered on the ground, like wadding, and smooth. Its specific gravity is too large for normal objects, and it feels heavy to hold.

And the shape of the material is not easy to cause strong reactions. In case of acid and water, it is not easy to cause strong reactions.

Furthermore, the solubility of the powder is also very low. In water, it is difficult to dissolve, and it sinks to the bottom of the water, like a stone that does not move. However, in some specific solutions, such as acid-containing liquids, it can be dissolved, melted into it, and formed in its own shape.

Its properties and properties, the phase of gold, is weak. Non-good materials, in order to make the flow and flow resistance. And its hardness is not high, it can be easily crushed and crushed, and it is not safe.

In this case, the physical properties of the compound are such that the color is white, the specific gravity is large, the solubility is low, the solubility is weak, and the hardness is not high. These are all the characteristics of other materials, which are used like workmanship and stone.

Is erbium fluoride chemically stable?

The chemical properties of zinc compounds should be distinguished by their type.

Most zinc elements contain zinc, cadmium, and mercury, and the properties of their compounds vary. Zinc compounds are mostly highly stable. In the case of zinc oxide, it is a white powder that rarely reacts with many substances at room temperature. In the air, it can be stable, and the chemical activity is not very high. In case of ordinary acid and alkali, the reaction is slow and orderly. In case of dilute acid, hydrogen is slowly released to form a solution of zinc salts, which can form a more stable structure due to the electronic arrangement and chemical valence of zinc ions.

Cadmium compounds have slightly different stability than zinc. Some of its salts have good stability under certain conditions. However, cadmium ions have certain toxicity, which also affects their performance in the environment and chemical reactions. In water, cadmium compounds may be dissociated, and their stability is greatly affected by the pH value and ionic strength of the surrounding medium. If the environment changes, or its chemical form changes, the stability will also change accordingly.

As for mercury compounds, the situation is more complicated. Common compounds of mercury, such as mercury chloride, although stable in appearance, are easily decomposed or chemically changed when heated or exposed to specific reagents. Due to the special electronic structure of mercury ions, the stability of their compounds often depends on ligands and reaction conditions. Organic mercury compounds are highly toxic and have very different stability from inorganic mercury compounds. They are complex to migrate and transform in the environment, and their stability is difficult to generalize.

Therefore, the chemical stability of zinc compounds cannot be covered in one sentence. It is necessary to consider the specific compound types, the environment and reaction conditions in detail to clarify their stability.

What are the preparation methods of erbium fluoride?

Mercury liquefaction is a substance formed by the combination of mercury and other substances. The method of its preparation was explored by the ancients, and today it is described in ancient Chinese.

One is to refine it with Dan sand. For Dan sand, mercury sulfide is also. "Baopuzi · Nei Chapter" says: "Dan sand is burned into mercury, and the accumulation becomes Dan sand." Take Dan sand and place it in a closed vessel, calcine it with fire, and the Dan sand decomposes to produce mercury. Later, the mercury and other substances are combined in a specific way to form mercury liquefaction. For example, mercury and sulfur are ground and mixed, heated to react, and sulfur and mercury combine to form mercury sulfide. This is the basic step in the preparation of common mercury liquefaction.

Second, it is prepared by the reaction of mercury and metals. Mercury has special properties and can form amalgam with many metals, which is also mercury liquefaction and the like. Although the whole method of amalgam preparation is not detailed in "Tiangong Kaiwu", it can be known that the ancients often involved amalgam in metallurgy and other things. To obtain the mercury liquefaction of mercury and metals, first take an appropriate amount of pure mercury, then select the desired metal, melt the metal into a liquid, slowly add mercury, stir well, and control the temperature and ratio to fully combine the two. Such as silver amalgam, silver and mercury are mixed in an appropriate proportion. After a certain process, silver and mercury liquefaction can be obtained, which is often used in ancient fillings and decorations.

Third, prepare by reacting mercury with acid or salt solution. Mercury reacts with nitric acid to obtain mercury nitrate. Take an appropriate amount of mercury first, put it in a corrosion-resistant device, and slowly add dilute nitric acid. The reaction is gas-generated, and the reaction is smooth. After evaporation, crystallization and other steps, mercury nitrate crystals can be obtained. This mercury nitrate can be reacted with other substances to obtain other mercury liquefied products. Or mercury reacts with certain salt solutions, such as chloride solutions, under specific conditions to generate mercury chloride and other mercury liquefied products. However, such reactions require detailed observation of the reaction conditions, temperature control, and amount control before they can form pure mercury liquefied products.

What is the price range of erbium fluoride in the market?

It is really difficult to determine the price of tin zeylate in the market. The price of tin zeylate depends on many reasons.

First of all, the difference in quality is related to the big thing. If tin zeylate is of high quality, pure but less miscellaneous, its price will be high; if it is of inferior quality, miscellaneous and pure, the price will be low.

Second, the trend of supply and demand will determine its price. When there are many people in the market who want it, but there are few people who supply it, the price will tend to rise; if the supply exceeds demand, the stock is accumulated and few people want it, and the price will fall.

Furthermore, the situation of the world is also an important reason. The government of the four parties, the state of war, and the rules of commerce can all disturb the price. If there is a change in the government in a place, the production and supply of tin-zelide are involved, and the price may be dramatic.

As for the range of its price, it is difficult to determine. However, roughly speaking, when the quality is ordinary and the supply and demand are slightly flat, the price per catty may be between tens and hundreds of dollars. If the quality is high, and the buyer is eager, the price may be unknown; and if the supply exceeds the demand and the quality is not good, it may only be worth a few dollars. This is a special approximation, and the actual price must vary with the change of the market, and it cannot be restrained.