1 2 Iodoethyl 4 Octylbenzene

What are the main uses of 1 - (2 - saltpeter-based) - 4 - mercuric sulfide? There are many uses of this material in "Tiangong", and it is useful in many fields.
Saltpeter-based mercuric sulfide, one of which is very important for fire. For fire, it is made of saltpeter, sulfur and charcoal in a specific ratio. Saltpeter acts as an oxidizer here, supplying a large amount of oxygen, so that the fire can burn quickly and release huge energy. Mercuric sulfide also has a helping effect in it, which can improve the burning rate and performance of the fire, making the use of fire more active. In fire, it is a weapon for siege and anti-invasion, such as artillery, fire and other firearms.
The two are also involved in the study. In ancient times, saltpeter has the functions of lowering and clearing, which can be used to treat some diseases and diseases. Mercury and its compounds are toxic to a certain extent, but under the amount and usage, they can be used externally for the treatment of certain skin diseases, with the effects of bacteria, disinfection and disinfection. However, due to the toxicity of mercury, the use of saltpeter should be used with caution.
Furthermore, in the metallurgical field, saltpeter can be used as a melting aid. In the metallurgical field, the addition of saltpeter can reduce the melting of saltpeter, promote the metal content in the stone, improve the efficiency of metallurgy and the degree of metallurgy, so that the metal can be refined.
In addition, in some industrial processes such as ceramics, saltpeter can improve the atmosphere of ceramics, affecting the fineness and texture of ceramics, making ceramics show a different sense of color and rich in the quality of ceramics.
Therefore, 1- (2-saltpeter-based) -4-thio-mercury is used in many aspects such as fire, metal, metallurgy, ceramics, etc., and has a deep impact on the ancient people's life, life, prevention, and industrial development.

1 - (2 - arsenic-based) - 4 - mercury-based benzene is rational, because both of them are chemical substances, and each has its own characteristics.
Arsenic, its chemical formula is\ (As_2O_3\), often in the form of white powder or crystal, the outer surface is like cream, so it is arsenic. It is smelly, and the taste is slightly sweet and toxic. Its density is relatively large. Under normal conditions, the density of solid arsenic is 3.86 g/cm ³. The melting temperature is low, 275 ° C, and it is easy to add, that is, it is directly dissolved by solid. Arsenic has limited solubility in water and is slightly soluble in water, but its aqueous solution is weakly acidic.
Mercury-based benzene is one of the mercury compounds. It is generally liquid, and the outer layer or the transparent liquid with a clear color to light color has a special taste. The density is also large, usually greater than the density of water. Its performance is low, and mercury can be evaporated slowly under normal conditions, which is also one of the sources of its toxicity. Mercury-based benzene is insoluble in water, but soluble in many soluble substances, such as ethanol, ethyl ether, etc.
Both contain toxic ingredients. The main source of arsenic toxicity is arsenic, which can dry the activity of human enzymes and cause organ failure. Mercury-based benzene is toxic due to mercury, causing serious damage to the body, liver and other organs. And the two have different durability, arsenic needs a certain degree of durability, while mercury-based benzene is often easy to burn, and it is necessary to be careful in use and treatment to prevent poisoning.

1-%282-%E7%A2%98%E4%B9%99%E5%9F%BA%29-4-%E8%BE%9B%E5%9F%BA%E8%8B%AF%E7%9A%84%E5%8C%96%E5%AD%A6%E6%80%A7%E8%B4%A8%E7%A8%B3%E5%AE%9A%E5%90%97%3F
these four things, the stability of their chemical properties is related to many things.
1 - (2 - arsenidyl) - 4 - naphthalene benzene, arsenidyl group, has an active state, and in the chemical environment, it can often lead to changes. However, in this compound, it interacts with surrounding groups. The side (2 - arsenidyl) is connected to 4 - naphthalene benzene, and the distribution of electron clouds interferes with each other, causing the activity of arsenidyl group to converge slightly.
As for the 4-naphthyl benzene part, the naphthyl group is combined with the benzene ring, the structure of the fused ring, and the electron conjugation system is widely distributed. This wide-area conjugation reduces the molecular energy and stabilizes the structure. In case of external specific chemical reagents, such as strong oxidants, strong acids, etc., the conjugated system may be broken, leading to molecular changes.
Overall, 1- (2-Arsenyl) -4-Naphthyl benzene has a certain stability due to the interaction of groups. However, it is not absolutely stable. In a specific chemical environment, such as high temperature, strong acid and alkali, and strong redox atmosphere, the chemical bonds within the molecule may break or combine, causing chemical changes. In case of strong oxidizing agents, the conjugated system of naphthylbenzene may be oxidized, resulting in structural changes; in case of strong acids, alkyl groups or protons, the molecular charge distribution changes, which in turn affects its chemical behavior. Therefore, its chemical properties are stable to a certain extent, but not indestructible, depending on changes in external chemical conditions.

To prepare 1 - (2 -cyanoethyl) -4 -benzylbenzene, the following method can be used.
First take benzyl chloride and benzene in an appropriate catalyst, such as anhydrous aluminum trichloride, in the presence of Fu-gram alkylation reaction. This reaction condition is quite critical, and the temperature should be controlled in a moderate range, about 0 ° C to room temperature. In order to ensure that benzyl can smoothly replace the hydrogen on the benzene ring to generate benzylbenzene. In this step, an appropriate amount of anhydrous aluminum trichloride is required. If there is too much, the side reaction will increase, and if there is too little, the reaction rate will be slow, which will affect the yield.
Then, the obtained benzylbenzene and acrylonitrile Strong bases such as sodium hydride or sodium amide can cause the hydrogen of the benzyl position of benzylbenzene to leave, form carbon anions, and then undergo nucleophilic addition reaction with acrylonitrile, which is the key step for generating 1- (2-cyanoethyl) -4-benzylbenzene. During the reaction, attention should be paid to the anhydrous and anaerobic conditions of the reaction system, so as not to affect the reaction process. The amount of strong base and the reaction time also need to be precisely controlled. If the reaction time is too short, the reaction will be incomplete, and if it is too long, it may cause many side reactions. < Br >
Although this synthesis method is difficult, if the reaction conditions can be finely regulated, a higher yield of 1- (2-cyanoethyl) -4-benzylbenzene products can be obtained. During the reaction, each intermediate product needs to be properly separated and purified to ensure the smooth progress of the next reaction and finally achieve the synthesis of the target product.

The storage and transportation of mercury is related to the protection of people's livelihood and physical properties. It is necessary to be very careful. Many matters should not be ignored.
Mercury is a liquid metal at room temperature. It is volatile, and its vapor is highly toxic, harming people's nerves, digestion and immune systems. Therefore, when storing mercury, the first thing to do is to close the device. Thick-walled and corrosion-resistant glass bottles or metal cans should be selected, and they should be tightly sealed to prevent mercury from escaping. If using glass bottles, the stopper must be tight, or reinforced with paraffin and other sealing objects to avoid its volatilization and toxicity.
Furthermore, the density of mercury is high, and the storage place must be stable to prevent it from being spilled. It should be placed on a low and stable shelf, away from passages and easy-to-touch places. Mercury is easy to react with metals such as copper and zinc, so storage containers should not be made of such metal materials, and iron, lead, etc. can be used with less appropriate materials.
When transporting mercury, the packaging is extremely strict. First, the mercury is packed in an airtight inner package, and then placed in a sturdy outer package, and then a buffer material is used to prevent shock and collision. Temperature and humidity must be controlled throughout the transportation process. Mercury has a low boiling point, and high temperature can easily make it gasify, so it should be avoided in a high temperature environment and transported in a cool period.
Transportation personnel also need professional training, the characteristics of cooked mercury and emergency response. If mercury leaks during transportation, quickly separate the site, evacuate the crowd, wear protective equipment, cover the mercury with sulfur powder, urge it to react into mercury sulfide, and then clean it up. Do not touch the mercury with your hands.
Mercury storage and transportation involves safety at every step, and strict compliance with regulations can ensure human safety and avoid disasters.