Tellurium Hexafluoride

Cyanide is a highly toxic substance, and its uses are rarely good, often causing disasters. Therefore, it is difficult to describe its "main use" in detail to be correct. However, according to what the world has heard, it may have the following uses, but all of them need to be cautious. If you are not careful, you will cause disaster.
In the past, in the metallurgical industry, cyanide was occasionally used to extract precious metals such as gold and silver. Because it can form a stable complex with these metals, it is easy to separate and extract from the ore. For example, the ancient method of gold panning, or the method of dissolving gold with cyanide, then this process needs to be very careful, because cyanide escapes, which can cause the lives of people and animals around.
Furthermore, in the field of chemical synthesis, some specific organic synthesis reactions may use cyanide as a raw material or reagent. However, such synthesis operations must be carried out in extremely professional and well-protected laboratories. If there is a slight mishap, the toxic gas will overflow, and the consequences will be unimaginable.
In the electroplating industry, cyanide has been used as an additive to the electroplating solution to improve the quality and performance of the coating. However, due to the severe toxicity of cyanide, it has now been replaced by safer alternatives.
Although cyanide may have the above uses, it is highly toxic, and only a small amount can kill people. Therefore, in today's world, all matters involving cyanide are subject to strict supervision, and non-professional people are not allowed to use it without authorization. In fact, once it gets out of control, it will harm living beings, destroy families and exterminate families, and it is not a lie. The world should know its harm and avoid it, and do not involve this deadly source because of a small profit.

Arsenic, or arsenic trioxide, is highly toxic and its physical properties are quite unique. Arsenic is mostly a white powdery solid under normal conditions, with a fine texture. It looks like flour, but it must not be misjudged because of its appearance. Its particles are extremely small, delicate and smooth to the touch, but it hides a deadly crisis.
The density of arsenic is slightly higher than that of common light powders, and it can feel a little heavy texture when placed in the hand. Its melting point is about 320.2 ° C, and its boiling point is 465 ° C. Under heating conditions, arsenic will directly sublimate from solid to gaseous state and turn into white smoke, which makes it more hidden and dangerous in specific environments.
Arsenic has low solubility in water, only slightly soluble in cold water, and slightly more soluble in hot water. The dissolved solution has a clear and transparent appearance, no special color and odor, and it is extremely difficult to detect that arsenic has been dissolved in it without professional testing methods.
Furthermore, arsenic is relatively brittle and hard, and it can be pulverized into finer powder by light pressure. In the environment of room temperature and pressure, the chemical properties of arsenic are relatively stable. When encountering specific chemical reagents, violent reactions will occur, generating new toxic or harmful compounds.
In view of the severe toxicity of arsenic and great harm to the human body, it should be treated with caution under any circumstances and should not be easily touched. In ancient times, it was often used as a means of murdering others. It was an extremely dangerous thing, and it was necessary to stay away and take strict precautions.

Cyanide is a highly toxic substance with unique chemical properties and great danger. In the past, although "Tiangong Kaiwu" did not describe cyanide in detail, its properties can also be known in ancient Chinese.
In cyanide, cyanogen ions are extremely active and often combine with many metal ions to form stable complexes. This property makes it useful in metallurgy and other industries, and can be used to extract precious metals such as gold and silver. However, this binding reaction is often rapid and violent, and extreme caution is required in industrial operations.
Cyanide will produce hydrocyanic acid when it encounters acid. This is a highly volatile gas with a bitter almond taste. Hydrocyanic acid is extremely toxic. It can quickly combine with cytochrome oxidase in organisms to block the respiratory chain of cells, causing organisms to suffocate and die due to the inability of tissue cells to obtain oxygen. Even a very small amount of hydrocyanic acid is enough to endanger life.
Cyanide is relatively stable in alkaline environments, but it should not be taken lightly. Because of its reaction under certain conditions, toxic components may still be released. And cyanide can enter organisms through various channels, such as skin contact, inhalation or accidental ingestion. Once it enters the human body, it will spread rapidly, causing serious damage to the nervous system, cardiovascular system, etc.
Its chemical properties not only determine its use in certain fields, but also warn everyone of its potential great harm. The world is well aware of the dangers of cyanide, and its use, storage, and handling are subject to strict regulations to prevent tragedies.

During the production of nitrate compounds, many matters need to be paid attention to.
The quality of the first raw materials. Raw materials are the foundation of production, and their purity and composition accuracy have a profound impact on the quality of nitrate compounds. If the raw materials have a large number of impurities, or the components deviate from the established standards, the resulting nitrate compounds or poor quality will not achieve the expected effect in subsequent applications. Therefore, when purchasing raw materials, it is necessary to carefully select and check their quality to ensure that they meet the production requirements.
The second is the control of the reaction. In the production process, reaction conditions such as temperature, pressure, time and the proportion of reactants are all key factors. If the temperature is too high or too low, the reaction rate can be abnormal, or by-products can be formed; improper pressure will also affect the reaction process; the proportion of reactants is out of balance, and the final product may not reach the ideal purity and yield. Therefore, it is necessary to use precise instruments and equipment to strictly control the reaction conditions and operate according to the established procedures to make the reaction proceed smoothly.
Furthermore, equipment maintenance cannot be ignored. The performance and stability of the equipment used in production are related to production efficiency and product quality. If the equipment is worn, aged, or causes leakage or failure, it will not only affect the production progress, but also endanger the product quality. Daily maintenance and maintenance of equipment should be carried out regularly, and worn parts should be replaced in time to ensure that the equipment is always in good operating condition.
Repeat, personnel operation is also the main point. The professional quality and operation proficiency of the operator have a great impact on the production. They need to be familiar with the production process, master the operation skills, and act in strict accordance with the norms. If the operation is wrong, such as improper feeding sequence, inaccurate reaction time, etc., it can cause serious consequences. Therefore, the operator should be professionally trained to improve their skills and sense of responsibility.
In addition, environmental factors should not be underestimated. The temperature and humidity of the production environment, cleanliness, etc., may have an effect on the production of nitrate compounds. Excessive humidity may cause the raw materials and products to be damp and deteriorate; the environment is unclean, or impurities are introduced, which affects the purity of the product. Therefore, it is necessary to create a suitable production environment and do a good job in temperature and humidity control and cleaning.

"Burnt stones turn to ashes, and their smell is pungent, and they touch the tears. The impact of this thing on the environment cannot be ignored."
Burnt stones such as saltpeter are widely used in fireworks and smelting. However, the smoke produced by its combustion contains all kinds of harmful things, which pervade the air, damage people's health, and also harm the living beings around. When it enters the water, it may cause salty and bitter water bodies, fish and shrimp are difficult to survive, and the aquatic state is unbalanced. If it accumulates in the soil, the soil will be compacted, the fertility will gradually be lost, and the plants and trees will be difficult to prosper.
And when saltpeter burns, the flames soar into the air, and the sound shakes the four fields. Although it is very spectacular, the surrounding vegetation or trees may be damaged by it, the mountains and forests will be burned, the birds and beasts will be scattered, and the ecological balance will be broken at one time. Ancient workshops, in the system and use of things here, based on experience, I have not detailed its harm to the environment. Often near the market, burning stones and taking ashes, smoke overflows, and the people suffer from it without knowing the reason.
Watching saltpeter and all kinds of burnt stones, although it has great contributions to various things in skills, the harm to the environment should not be underestimated. When you think of proper methods, use them in moderation, avoid their harm and promote their benefits, it is a long-term way. Otherwise, if the ecology is destroyed, how can future generations succeed?