Pyridine, 2-bromo-5-chloro-3-nitro-

The chemical properties of this product are determined by its constituent elements and molecular structure. Looking at the discussion of things in "Tiangong Kaiwu", although it is not explicitly stated in today's chemical terms, there is also insight into the changes in the properties of things.
As far as common things are concerned, metals are mostly lustrous, with good electrical conductivity and thermal conductivity. Such as copper, its color is red yellow, tough, can be cast and made of money. In the air, it gradually grows patina, which is the reason why copper combines with oxygen, water and carbon dioxide in the air. Iron, silver gray, hard, but easy to rust. It reacts chemically with water and oxygen to form rust, and its main component is iron oxide.
Non-metallic things have different properties. Such as sulfur, yellow in color, brittle, flammable, and pungent sulfur dioxide gas when burned. Carbon exists in various forms, graphite is soft and greasy, and can be used as a lubricant and pencil lead; diamond is extremely hard, making it the hardest among natural minerals.
Looking at various compounds, water is colorless and odorless, and is the source of life. Its chemical properties are stable, but it can react with many substances. If it encounters sodium metal, the reaction is violent. Sodium floats on the water surface, swims rapidly, and hisses, generating sodium hydroxide and hydrogen gas.
Salts are common, such as sodium chloride, which is ready-to-eat salt. It tastes salty and soluble in water. Its chemical properties are relatively stable, making it indispensable for cooking and seasoning. There is also calcium carbonate, which is stored in limestone and marble, and can be calcined at high temperature to obtain calcium oxide and carbon dioxide. This is the principle of lime firing.
From the above, it can be seen that the chemical properties of things are complex and diverse, and the interaction produces thousands of changes. These are all natural wonders, which need to be further explored by our generation.

The main uses of this product are as follows.
First, it helps a lot in agriculture. As "Tiangong Kaiwu" says: "It is the weight of grains (grains), which is related to people's lives." This product may be used to make tillage utensils to facilitate soil breaking and tilling, loosen the soil, make seeds easy to grow in beds, and increase grain yield. In the past, the system of slaughter was the initial tool for farming, but with the changes of time, this product may be an improved material to increase its toughness and make it more suitable for work.
Second, in the field of construction, it is also indispensable. "For barracks and houses, materials and tools come first." This product can be used to make beams and rafters to support buildings and ensure their firmness and stability. And it can be processed into doors and windows, which not only keeps the interior hidden, but also provides air and light. The ancient palaces and pavilions are majestic and magnificent, all relying on solid materials. If this product can be used, it will definitely add bricks and tiles, and it will not fall down after a thousand years.
Third, it is used in daily utensils and has many uses. It can be used as the handle of a knife and axe, making it stable and helping to cut and chop. It can also be made into tables, chairs and cases for people to rest and store. "Kaogong Ji" says: "When the sky is sometimes, the earth has gas, the materials are beautiful, and the workmanship is ingenious." With exquisite craftsmanship, this product can be turned into all kinds of exquisite utensils, integrated into the daily life of the people, and improve the quality of
Fourth, in the military, it is also available. It can make a bow and crossbow body, which makes the ejection powerful and has a longer range. It can also build shields to defend against enemy arrows, knives and guns, and protect the safety of soldiers. In the ancient battlefield, those with well-equipped equipment often have a better chance of winning. This product may be able to make great contributions to the improvement of armaments.

Looking at the process of product synthesis, there are various key steps. The first is the selection of raw materials, which is the basic beginning. It is necessary to carefully select high-quality raw materials. If the raw materials are not good, everything will be difficult to achieve in the future. For example, when building a building, the cornerstone is not solid, how can it be stable? It is necessary to carefully observe the nature, quality and purity of the raw materials to ensure that they meet the needs of synthesis.
Following the formula design, this is the cardinal. The formula must be carefully studied according to the desired nature of the product. If you make a soup, the amount of ingredients and the proportion of the ingredients are all related to the quality of the taste. If the formula is exquisite, the performance of the product is outstanding; if there is a poor pool, the product may be disqualified.
Furthermore, the control of the reaction conditions is also an important consideration. Temperature, pressure, time, etc., are all key. High or low temperature, strength of pressure, and length of time can all affect the reaction process and fruit. It is like the heat of cooking, just right, to get a good meal. The reaction must be carried out under suitable conditions to achieve the expected product.
There is separation and purification, which is indispensable for this step. After the reaction is completed, the product or mixed impurities, if not separated and purified, the purity of the product will not be reached, and the quality will be damaged. When using appropriate methods to remove impurities and store sperm, the product will be pure and meet the standard.
The detection and optimization after the product should not be ignored. After the product is finished, carefully check its quality and properties to see if it meets the preset. If there is any failure, investigate the cause and optimize the process. If you cut jade, carefully crafted, you will produce beautiful jade.
All these steps are interlinked, and any failure in any link can lead to the failure of the synthesis. Only with a rigorous heart, exquisite skills, and careful handling can the product be synthesized smoothly and get high-quality products.

Let me describe the common methods of a certain product.
One of them is the extraction method. If this material is in natural raw materials, it can be extracted. Take the appropriate raw materials first, according to their characteristics, or pulverize or cut. If the raw materials are mixed with plants, it needs to be dried and then processed. And the dissolution of the raw materials is difficult, such as water and ethanol. The raw materials are immersed in the dissolution, so that the desired material is dissolved in the solution. It may need to be mixed to promote full dissolution. After the extraction is completed, the solid-liquid solution is separated by the method of separation to obtain a solution containing the target material. The second is the chemical synthesis method. If the chemical properties of this substance are known, it can be transformed and reverse synthesized. According to its characteristics, there is a reasonable synthesis path. Take the starting materials of the chemical, and gradually build up the molecules through reactions such as addition, substitution, and combination. This process requires the control of the reaction components, such as temperature, force, and catalysis. High or low degree, it may affect the reaction rate and the degree of the material. After the reaction is completed, operations such as separation and extraction can be removed to obtain high-quality products.
Third, biotechnology. Nowadays, biological means are subject to injection. If microbial leavening is used, a strain with specific generation ability can be created. First, the culture of the chemical base is matched, and the microbial biology is provided. In addition, there are also those who use enzymes to catalyze reaction. Enzymes have the characteristics of high efficiency and uniformity. They take special enzymes and use specific substrates and raw materials to catalyze reaction under different conditions to generate the required substances. At the same time, they need to separate and process to obtain qualified products.

Looking at the market prospect of this product is like seeing flowers in the fog, and there is no conclusion. However, if you study it carefully, you can also get a glimpse.
At this moment, the world is changing day by day, and all industries are competing to develop. The market is changing rapidly, and opportunities and challenges coexist. If this product wants to emerge, it depends on the cooperation of many factors.
First, look at the demand. Today's people, life is getting richer, and the needs of various products are not only for their availability, but also for their quality and novelty. If this product can adapt to the times and meet the changing needs of the people, or has unique functions, or has novel designs, it will make people love it and win a place in the market. For example, in ancient times, the workmanship of the machine must be exquisite, in order to meet the needs of the world, and it will be passed down for a long time.
Second, when it comes to competition. In the market, there are many competitors in the same industry, such as thousands of sails competing, and hundreds of sails competing. If this product wants to stand out, it must have something exceptional. Only with exquisite craftsmanship, or with low prices, or with thoughtful service, can it attract customers and gain word-of-mouth. In the past, merchants were based on integrity and quality, so that they could be trusted by everyone and have a prosperous business.
Third, it is about promotion. The fragrance of wine is also afraid of deep alleys. Even if the product is very delicate, if it is not publicized, it will be difficult to be known. Make good use of today's media, advertise it widely, and make it famous. And the marketing method should be flexible and changeable, invest in what everyone likes, attract their attention, and move their purchasing hearts.
However, although the prospect has promising aspects, there are also hidden worries. The tide of the market, the turbulence of clouds, the change of policies, and the new technology can all affect the fate of products. If you can't keep pace with the times and adapt in time, you may be like sailing against the current. If you don't advance with the times, you will retreat.
To sum up, the market prospect of this product has both opportunities and risks to guard against. Only by carefully planning and moving forward can you ride the wind and waves in the sea of the market and sail to the other side of success.