5-(2-Fluorophenyl)-1-Pyridin-3-Ylsulfonylpyrrole-3-Carbaldehyde

I think what you are asking is a doubt about the chemical structure. The "chemical structure of 3-methylpropene" involved is the category of organic chemistry.
Fu 3-methylpropene, its molecule contains two elements of carbon and hydrogen. In terms of chemical structure, its main chain is the structure of propylene. Propylene contains a chain-like structure composed of three carbon atoms and has a carbon-carbon double bond. On the basis of the main chain of propylene, a methyl group is connected at the third carbon atom. The methyl group is a group composed of one carbon atom and three hydrogen atoms.
In detail, starting from the carbon atom at the head of the chain, one is covalently bonded to two hydrogen atoms, and at the same time is connected to the adjacent carbon atoms by double bonds; this adjacent carbon atom is combined with a hydrogen atom and a third carbon atom by single bonds; while the third carbon atom, in addition to the second carbon atom, is still connected to a methyl group, and the carbon atom of the methyl group is bonded with three hydrogen atoms. In this way, the chemical structure of 3-methylpropene is formed. This structure endows 3-methylpropene with unique chemical properties. Due to the existence of carbon-carbon double bonds, it has high reactivity and can participate in many organic chemical reactions such as addition reactions. It is widely used in the field of organic synthesis.

"Tiangong Kaiwu" says: "Where sulfur is formed by burning stone and liquid. Its substance is material, and it is white and brittle when folded, and bright when burned. There are names such as stonewall fat, stonewall yellow, Kunlun yellow, yellow teeth, Yanghou, general, etc." Today ask about the physical properties of 3-ethylheptane?
The one with 3-ethylheptane is one of the organic compounds. It is a colorless and transparent liquid with a special smell. Looking at its phase state, it is liquid at room temperature and pressure. In terms of its density, it is lighter than water, so it floats on the surface of the water.
As for the boiling point, due to the intermolecular force and structure, the boiling point is about 131-132 ° C. If the ambient pressure changes, the boiling point will also change. Its melting point is about -119 ° C. When the temperature drops below the melting point, it condenses into a solid state.
In terms of solubility, 3-ethylheptane is insoluble in water because it is a non-polar molecule, and water is a polar molecule. According to the principle of "similar miscibility", the two are insoluble. However, it is soluble in many organic solvents, such as ethanol, ether, chloroform, etc., because many organic solvents are non-polar or weakly polar. < Br >
3-ethylheptane is flammable and can cause combustion and explosion when exposed to open flames and high heat energy in the air. Its vapor and air can form an explosive mixture, which is at risk of combustion and explosion in case of fire. When in contact with an oxidizing agent, it can also react strongly.
Its chemical properties are relatively stable, but under specific conditions, such as high temperature, light, and the presence of catalysts, substitution and oxidation can occur. This is also the physical properties of 3-ethylheptane.

To make triacetonitrile, there are the following methods.
First, start with (2-cyanoethyl) -1-pentyne. First, (2-cyanoethyl) -1-pentyne interacts with a certain reagent, and through a series of transformations, it can gradually synthesize triacetonitrile. This process requires controlling the temperature, time and amount of reagents. If the temperature is high, the side reaction will occur and the yield will drop; if the time is short, the reaction will not be completed and the product will be impure.
Second, 3-aminopropionitrile is used as the group. 3-Aminopropionitrile can be synthesized by multi-step reaction, or modifying its structure, or introducing specific groups. The reaction path needs to be well-versed in the reaction mechanism of each step, and the conditions of each step need to be carefully adjusted to prevent the formation of impurities, so as to maintain the purity of the product.
Third, the structure of triacetonitrile can be gradually constructed by starting from other related compounds through reactions such as substitution, addition, and elimination. However, all these methods need to be selected according to various factors such as specific experimental conditions, availability of raw materials, and cost. If the raw material is rare, although the method is feasible, it is not a good choice; if the cost is high and the product is good, it is not suitable for mass production. It is necessary to observe each situation carefully to obtain the best method for the synthesis of triacetonitrile.

"Tiangong Kaiwu", the main use of trimethylamine is used in the production of various chemicals, which plays a huge role in the field of industry.
Guanfu trimethylamine, which can be used as a raw material for surfactants. In the daily chemical industry, the preparation of many detergents and emulsifiers, trimethylamine is indispensable. With its chemical properties, it can help the material disperse and emulsify, so that the product has better performance. Such as detergent, shampoo, etc., because of the surfactant made of trimethylamine, it has a good decontamination and foaming effect.
In addition, trimethylamine is also useful in the production of pesticides. A variety of high-efficiency pesticides can be synthesized to protect crops from insect infestation. With its participation in chemical reactions, the resulting pesticides can precisely act on pests, with relatively little impact on the environment, and help agricultural harvests.
In the field of medicine, trimethylamine is also an important raw material. The synthesis of some drugs requires its participation. After complex chemical processes, it is transformed into a good medicine for treating diseases and saving people, and escorts human health.
In addition, trimethylamine also plays a key role in the manufacture of rubber additives and ion exchange resins. In the rubber industry, the prepared additives can improve the properties of rubber, enhance its wear resistance and aging resistance; in the manufacture of ion exchange resins, it can optimize the resin structure and improve its ion exchange efficiency.
Trimethylamine has important uses in many fields of industry, and has made great contributions to promoting the development of chemical, agricultural, pharmaceutical and other industries.

If you want to talk about the storage and transportation of mercury, you should know that mercury is very flexible and changeable. Between storage and transportation, you should be cautious.
The first thing to say about storage. Mercury is volatile, and its gas is highly toxic, so mercury storage utensils must be tightly sealed to prevent escape. It is advisable to use sturdy porcelain bottles or special metal containers, and do not make gaps. Place in a cool and dark place, protected from heat and light, because heat and light can cause it to evaporate. And should not be in the same place with strong oxidizing agents to prevent changes.
Note when transporting mercury. When transporting mercury, be sure to be light and steady, so as not to spill it. If you use a boat to transport it, the car should be smooth, the boat should be quiet, and do not make bumps. The escort should be familiar with the nature of mercury and have emergency equipment. If mercury is accidentally spilled, quickly cover it with sulfur powder to make it synthesize into mercury sulfide to reduce poison.
In addition, people involved in mercury must wear protective equipment, such as masks, gloves, protective clothing, etc., to prevent mercury gas from entering the body and mercury liquid from touching the skin. And when you are not working, you should bathe and change clothes frequently to remove its filth.
As for the "5- (2-hydroxymercury-based) -1-to-its-3-based silver-based-3-methylmercury", these are all mercury compounds, and their properties are stronger. The method of storage and transportation is probably the same as that of mercury, but it is especially necessary to be cautious. Between things, it is also necessary to prevent their interaction from causing accidents.
In short, when mercury and its compounds are stored and transported, safety must be the most important thing, and proper measures must be taken according to their physical properties to ensure safety.