What are the main uses of tellurium hexafluoride?

Cyanide is a highly toxic substance, and it was feared by the world in ancient times. Such poisons are rarely used for routine purposes within the scope covered by Tiangong Kaiwu, but they also have traces and effects in specific situations.

First, cyanide is occasionally involved in the refining process of precious metals such as gold and silver. In ancient gold miners, gold extraction techniques such as "soot blowing" were used, and cyanide can form a soluble complex with gold to help gold separate from ores. For example, although the application of cyanide in this regard is not detailed in Tiangong Kaiwu, there are many ways to extract gold. The use of cyanide to dissolve gold can free gold from complex ore systems, and then recover pure gold by specific means. However, this process requires extremely high skills, and cyanide is highly toxic. If you are not careful, it will endanger your life.

Second, in the field of metallurgy in ancient times, although it is not common, cyanide may be used to adjust the properties of metals. In some metal smelting, adding a small amount of cyanide may change the structure of the metal lattice and improve the toughness, hardness and other properties of the metal. However, such applications must be done with caution, because of its severe toxicity, a slight mistake can lead to disaster.

Third, in military or special situations, cyanide may be used as a "killer". In ancient wars, there may be people who use highly toxic substances to block and kill the enemy. Cyanide is highly toxic and can kill enemies, humans and animals in an instant. Although "Tiangong Kaiwu" does not focus on this, such highly toxic substances may be part of the strategy when soldiers and soldiers are fighting.

However, it needs to be made clear that cyanide is extremely toxic and ordinary people avoid it. Although "Tiangong Kaiwu" focuses on skills and products, it should also be viewed with caution to prevent it from causing chaos in the world.

What are the physical properties of tellurium hexafluoride?

Alas! The physical properties of this halide can be studied. The halogen is a compound formed by the combination of halogen and other elements.

One, look at its color. The colors of various halides vary. For example, sodium chloride is often a colorless and transparent crystal, which shines brightly in the sun, just like the purity of ice jade. Silver bromide is a pale yellow powder, like the leaves of wood in autumn, which are slightly yellow at first, with a faint rhyme.

Second, on its state. Under normal temperature and pressure, hydrogen chloride is a colorless gas, lively, like an unruly bird, easy to diffuse in the air. Calcium chloride is a white solid with a solid texture, like the stability of mountains. However, hydrogen bromide is also a gas, and the same is true of hydrogen iodide, both of which have the properties of light flow of gases.

Third, talk about its melting and boiling point. The melting and boiling point of halides varies depending on their structure and force. Generally speaking, ionic halides, such as potassium chloride, have strong ionic bonds, so their melting and boiling points are quite high. To melt and gasify them requires huge energy, just like the strength of a rock, which cannot be moved without force. And covalent halides, such as carbon tetrachloride, have weak intermolecular forces, low melting and boiling points, and are easy to evaporate. They are like light smoke and dissipate when heated slightly.

Fourth, say their solubility. Many halides are soluble in water, such as potassium iodide, which dissolves quickly when entering water, just like ice and snow entering a river, invisible and invisible. Its aqueous solution can conduct electricity, and it is also due to the ionization of anions and cations. However, calcium fluoride is insoluble in water, and it is like a solitary stone in water, holding its own state.

Fifth, consider its density. The density of halides also varies. Some halides have a density greater than that of water, such as carbon tetrachloride. When they pour into water and sink to the bottom, they are like a heavy stone falling into the abyss. And some are smaller than water, such as some organic halides, which float on water and are light.

The physical properties of halides are controlled by many factors such as their constituent elements, chemical bond types, molecular structures, etc., and each is in a wonderful state.

What are the chemical properties of tellurium hexafluoride?

Cyanide, a class of compounds containing cyanide groups (CN). Its chemical properties are specific and have many significant characteristics.

In cyanides, cyanide ions (CN) are highly active. In aqueous solutions, cyanide can dissociate and give birth to cyanide ions. This ion is easily complexed with metal ions, which makes it have strong coordination ability. Common cyanides such as sodium cyanide (NaCN) and potassium cyanide (KCN) quickly dissociate into metal cations and cyanide ions in water.

Cyanide has extremely high reactivity. When exposed to acid, it reacts rapidly to give rise to hydrocyanic acid (HCN). Hydrocyanic acid is a volatile weak acid and is very toxic. The reaction formula is as follows: H 🥰 + CN HCN ↑. This property causes cyanide to be released rapidly in an acidic environment, and the toxicity is greatly increased.

When cyanide complexes with metal ions, it often forms a stable complex. Taking ferricyanide as an example, potassium ferrocyanide (K [Fe (CN) ]) meets iron ions and can form a Prussian blue precipitate. This reaction is often used as a means to test iron ions. The complexation process is based on the strong coordination between cyanide ions and metal ions, and a stable structure is constructed.

In addition, cyanide also has unique performance in redox reactions. Some cyanides can be used as reducing agents and can be oxidized by strong oxidants. For example, cyanide ions can be oxidized by oxidants such as chlorine to cyanate (CNO~), or even further oxidized to carbon dioxide and nitrogen.

The chemical properties of cyanide involve not only acid-base reactions, but also complexation reactions and redox reactions. Its properties are active and highly toxic, and it needs to be treated with caution in industrial, scientific research and environmental fields to prevent it from causing harm.

What are the precautions for tellurium hexafluoride in the production process?

Nitrate compounds in the process of production, general matters should be taken care of. First, the quality of raw materials is of paramount importance. It is necessary to obtain high-quality and high-quality raw materials. If the raw materials contain too much, it is easy to cause bad reactions and make the quality of nitrate compounds poor. For example, if the metallurgy is not good, the quality of the stone is not good, and the gold is obtained.

Second, the reverse parts must be carefully controlled. The level of the degree, such as the size of the heat, is difficult to produce. High degree of resistance, or strong, is prone to danger, and may cause decomposition of the substance; low degree of resistance, low degree of resistance, or even to produce. Another example is the force, which also needs to meet specific requirements, in order to make the reverse profit and generate qualified nitrate compounds.

Third, the operation process should be followed. The order of raw materials delivery and the operation methods of each step are all determined. What to put first and what to add depends on the principle of science. A little difference may affect the formation of the material.

Fourth, safety and prevention measures are indispensable. Nitrate compounds are mostly dangerous, or toxic, or corrosive. The raw material is used to prevent damage, such as anti-wear, gloves, masks, etc., to ensure their own safety. The room is also equipped with perfect communication, fire protection, etc. to prevent accidental damage.

Fifth, control the whole process of wear and tear. In the process of production, the reaction process and the composition of the product are determined. If there is a deviation, it can be corrected immediately before the product of the nitrate-preserving compound can be determined and the profit of the product can be generated.

What are the effects of tellurium hexafluoride on the environment?

Arsenic is a highly toxic substance, and its compounds have a profound impact on the environment.

Arsenic, the chemical name of arsenic trioxide, if its compounds are released in the environment, they will bear the brunt of affecting the soil. In soil, arsenic compounds can cause changes in soil properties and reduce soil fertility. Cover because it interacts with many nutrients in the soil, hindering the absorption of nutrients by plants, causing plant growth to be trapped, stunted, and even withered and died. Over time, the productivity of the land will decrease sharply, the fertile fields will gradually become barren, and the agricultural mulberry industry will be severely damaged.

In terms of water bodies, if arsenic compounds enter rivers, lakes and seas, the damage to aquatic ecosystems is incalculable. Aquatic organisms such as fish and shellfish are extremely sensitive to arsenic, and a small amount of arsenic compounds can be life-threatening. And it is easily enriched in aquatic organisms, passed through the food chain layer by layer, and eventually endangers human health. If people eat aquatic organisms contaminated with arsenic, arsenic will accumulate in the human body, causing various diseases, such as skin lesions, liver damage, nervous system disorders, etc., and even killing people.

In the atmosphere, although arsenic compounds are relatively rare, they can be released through industrial activities or volcanic eruptions, and can spread with atmospheric circulation. If people breathe in air containing arsenic compounds, it will also damage the respiratory system, cause coughing, asthma and other diseases, and long-term exposure will greatly increase the risk of cancer.

Furthermore, arsenic compounds are extremely difficult to degrade in the environment, will persist for a long time, and continue to harm the ecological environment. Therefore, the control and treatment of arsenic compounds is the priority of maintaining environmental health and protecting people's livelihood, and must not be taken lightly.