5-bromo-6-chloropyridine-3-sulfonyl chloride

Sulfur is the essence of pure yang, hot and poisonous. Its shape and quality are different, yellow and shiny, or like lumps, or like powder, often born on the side of volcanoes and on the banks of hot springs.
Sulfur has various physical properties. Its quality is brittle and fragile to the touch. When burned, it produces a bright flame and is accompanied by a pungent gas. This gas is sulfur dioxide. Its smell is extremely stinky, and everyone hates it. The melting point is about 118 degrees, and the boiling point is about 440 degrees. It is insoluble in water, but soluble in organic solvents such as carbon disulfide.
Looking at its use, sulfur is quite important in ancient alchemy. Warlocks often use it to combine various medicines and desire the elixir of longevity. In medicine, it is also used. It has the effect of replenishing fire and helping yang, laxative and insecticidal, and can treat cold and asthma, impotence, deficiency and cold constipation. However, because it is toxic, it needs to be used with caution. In industry, sulfur is an essential material for the production of sulfuric acid. Sulfuric acid is essential for chemical things, such as fertilizer, petroleum refining, pigment making, etc. It is also indispensable.
I also heard that sulfur is used in the production of gunpowder, and it also has its functions. Gunpowder is one of the four great inventions of China. Sulfur is mixed with saltpeter and charcoal in a specific ratio to form this miraculous thing. It is used in military attacks and fireworks. It has extraordinary power and brilliant sound and light.
Sulfur has unique physical properties and a wide range of uses. However, due to its toxicity, those who use it should be aware of its properties and know its methods to avoid disasters and promote its growth.

Mercury is a liquid metal in the five elements, which is cold and toxic. It is mentioned in many ancient books and the study of alchemy. Mercury, also known as mercury, is a silver-white liquid at room temperature, with a flowing state, flowing like water, and shining luster. Its chemical properties are unique and many wonders.
Mercury is easily amalgamated with most metals, which is a major property of mercury. In ancient alchemy or metal processing techniques, this property has a wide range of uses. If you want to mix certain metals, mercury can be used as a medium to make the fusion between the metals smoother. Take gold as an example. After mixing gold and mercury, gold amalgamates are formed. After heat treatment, the mercury evaporates, leaving only gold. This is an ancient method for refining high-purity gold.
Mercury can react with oxygen. When mercury is heated, it combines with oxygen in the air to form mercury oxide. This reaction is quite mysterious in the eyes of alchemy practitioners. The ancients believed that this is a wonderful transformation between substances. Mercury seems to "absorb" the clear air between heaven and earth during the heating process, and then turn into new substances. The appearance of mercury oxide is very different from that of mercury. It changes from a flowing liquid to a solid state, and its color also changes, or it is a red powder.
The volatility of mercury cannot be ignored. Even at room temperature, mercury will slowly evaporate, forming mercury vapor in the air. Mercury vapor is colorless, odorless, but highly toxic. Although the ancients may not have known the principle of its toxicity, they also realized in practice that long-term exposure to mercury can easily make people feel unwell and listless. Therefore, when dealing with mercury, the ancients were also very cautious, often operating in well-ventilated places to prevent mercury vapor damage.
Mercury is chemically capable of combining with metals, reacting with oxygen, and is volatile. In ancient times, these properties of mercury were used in alchemy and alchemy practice, but due to its toxicity, it was necessary to be extra careful when using it to avoid endangering itself.

To make phosphorus pentachloride and tungsten hexachloride, the common methods for making chlorine are as follows.
First, concentrated hydrochloric acid can be co-heated with manganese dioxide. Concentrated hydrochloric acid is poured into a flask containing manganese dioxide and heated with an alcohol lamp. In the meantime, the chloride ions in the hydrochloric acid are oxidized by manganese dioxide, so chlorine gas is generated. The reaction formula is:\ (4HCl (concentrated) + MnO_ {2}\ xlongequal {\ triangle} MnCl_ {2} + Cl_ {2}\ uparrow + 2H_ {2} O\). In this reaction, manganese dioxide is used as an oxidizing agent, and hydrochloric acid is used as a reducing agent. Heating prompts the reaction to proceed.
Second, react with concentrated hydrochloric acid with potassium permanganate. Take potassium permanganate and put it in a container, slowly inject concentrated hydrochloric acid. Without heating, chlorine quickly escapes. The chemical equation is:\ (2KMnO_ {4} + 16HCl (concentrated) = 2KCl + 2MnCl_ {2} + 5Cl_ {2}\ uparrow + 8H_ {2} O\). Potassium permanganate is very oxidizing, and chlorine ions in hydrochloric acid can be oxidized at room temperature. This method is convenient and rapid.
Third, after the salt is co-heated with concentrated sulfuric acid, the product reacts with manganese dioxide. First, the salt is co-heated with concentrated sulfuric acid to obtain hydrogen chloride gas. The reaction is:\ (2NaCl + H_ {2} SO_ {4} (concentrated) \ xlongequal {\ triangle} Na_ {2} {4} + 2HCl\ uparrow\). Then, the obtained hydrogen chloride gas is passed into the mixed system with manganese dioxide and heated to obtain chlorine gas. Although this process is slightly complicated, the raw materials are common and easy to obtain.
After chlorine is prepared, phosphorus pentachloride can be obtained, which can react with dry chlorine gas. Place phosphorus in a reaction vessel, pass dry chlorine gas, and heat slightly. Phosphorus is violently combined with chlorine gas to form a white solid of phosphorus pentachloride. The reaction is:\ (2P + 5Cl_ {2}\ xlongequal {\ triangle} 2PCl_ {5}\).
To produce tungsten hexachloride, put tungsten powder in a special reaction device, pass dry chlorine gas and heat it. Tungsten hexachloride can be obtained by fully reacting chlorine with tungsten powder. The reaction formula is:\ (W + 3Cl_ {2}\ xlongequal {\ triangle} WCl_ {6}\). In this way, the required phosphorus pentachloride and tungsten hexachloride can be obtained.

The Pill of the Five Cultivators, the Pill of the Six Cultivators, and the Path of the Three Cultivators. It involves a lot of problems, and there are many wonderful ways to use it.
The first way to promote the path of cultivation. Taoist practitioners often use mercury as a key. Mercury-based flow, which is difficult to transform, is in line with Taoists' pursuit of natural transformation and return to the original essence. With the five methods and the six techniques, the essence of mercury can be improved and obtained, and the wondrous state of three gatherings can be obtained. Help practitioners get through the day, condense the essence of the spirit, and reach the realm of transcendence. In the process of mercury cultivation, through its sympathetic and five-element symbiosis, people are used to treat tripods, mercury is used to guide, to repair pills, and to improve one's health, prolong one's life, and even become immortals.
In addition, the realm of cultivation. Mercury and its chemical substances are also used in ancient books. The amount of mercury is used, and it can be used to treat diseases. For example, for some pills, mercury is used in combination with others to treat skin diseases such as scabies and scabs. It has the effect of detoxification and disinfection. Or it is used to treat mental illnesses such as depression and madness, with its ability to calm the mind, and make the mind in place. However, mercury is poisonous, and it needs to be used with caution. The dosage and processing are all regulated, and it is not anti-human.
In addition, in the realm of utensils. Mercury can be used in metallurgy. Mercury can form more gold, and this property is often used to extract gold, such as gold, etc. Extracting gold by the mercury method can improve the quality of gold and improve the quality of gold. And the fluidity of mercury makes it used in some special equipment, which has special uses, such as ancient dripping devices. The average flow of mercury can be refined and facilitated.

5-Liquid-6-Cyanogen-to-other-3-To show that the cyanogen is in storage and storage, you need to pay attention to the following general things:
First, dense storage. Cyanogen liquids and cyanides are dangerous and need to be stored in dense containers to prevent cyanide from escaping in the air, causing poisoning, and preventing liquid leakage or leakage, leading to accidents. Containers that are dense are resistant and corrosion-resistant, so as to ensure the safety of storage.
Second, the environment is not good. The survival is dry, well-connected and good. The tidal environment is easy to cause cyanide compounds to react biochemically and affect their properties; high temperature may promote the escape of cyanide, or lead to other dangerous reactions.
Third, storage in isolation. Do not store together with acid, oxidation, etc. Because cyanide can quickly release toxic cyanide when it encounters acid, and oxidation may cause strong oxidation reaction, fire or explosion.
Fourth, the package is firm. The package must be firm and reliable to prevent the container from breaking during the moving and bumping process. The outer package clearly shows the warning signs such as "poison", reminding the moving and other personnel to operate cautiously.
Fifth, human prevention. People who are not stored in the package are well-known, and are familiar with the dangerous characteristics of cyanide and emergency treatment methods. The operation system should be equipped with perfect anti-cyanide, such as gas masks, chemical protective clothing, etc., to avoid direct contact with cyanide and ensure its own safety.
Sixth, emergency case. It is necessary to formulate a comprehensive emergency case. In the event of an accident such as leakage, emergency measures can be taken quickly, such as evacuation of crowds, sealing, and handling of leakage, etc., to minimize the harm.