Pyridine, 2,3-dichloro-4-(trifluoromethyl)-

The chemical properties of this product are particularly important, related to its performance and use. Its stability, under normal circumstances, it is difficult to react violently with other things, just like the ancient calm people, not easily restless. This stability allows it to be stored for a long time, and it can maintain its own characteristics in many environments, and it is not easy to deteriorate and damage.
In addition, its solubility is also a key property. In a specific solvent, it can be better dissolved, just like ice and snow melting when warm, and it melts seamlessly. This property allows it to be easily dispersed in the system when preparing various preparations or participating in certain chemical reactions, so as to better exert its effectiveness.
In addition, the acidity and alkalinity of this product are neutral, neither partial to acid nor alkali, just like the mediocre in life, peaceful and stable. This neutral characteristic allows it to coexist with many substances with different acids and bases, and does not conflict with surrounding substances due to its own acidity and alkalinity, thereby broadening its application range.
Its oxidation and reduction properties are also very weak, and it is not easy to gain or lose electrons. It is like a person who is content with the status quo and does not easily participate in the fierce "electron competition". This property guarantees its chemical stability in many scenarios, and does not change its structure and properties due to oxidation or reduction reactions.
Such various chemical properties are intertwined to create the unique chemical "character" of the product. In various fields of application, they all apply their capabilities according to their properties and achieve their functions.

The physical characteristics of this product are complex, related to material, shape, performance and many other aspects, which are elements that cannot be ignored.
In terms of material, or use gold stone, bamboo wood, silk and other materials. The texture of gold and stone is firm and brittle, such as bronze. Its casting tool is solemn and simple, but the processing is quite difficult, and it requires high temperature melting and delicate casting techniques. Bamboo and wood are light and easy to work, such as bamboo weaving utensils, which show natural texture and simplicity, but are vulnerable to insect moth and decay. Silk and linen are soft and delicate, such as silk fabrics, which are smooth to the touch and gorgeous in color, but have strict requirements for preservation of the environment.
Looking at its shape, there are differences in radius, length and size. The square one is upright and regular, like the square tripod of ancient times, symbolizing solemnity and majesty; the round one is round and smooth, like a jade wall, which means perfection and auspiciousness. Different lengths and sizes also have their own uses. As large as a city tower, it is magnificent and has the effect of defense and display; as small as a sachet, it is exquisite and exquisite, and has the power of decoration and deworming.
As for performance, it has the characteristics of heat resistance, cold resistance, wear resistance, corrosion resistance, etc. Heat-resistant things, such as ceramic cookware, can maintain stable shape under high temperatures and are competent for cooking; cold-resistant things, such as animal skin clothing, can keep the human body warm during severe cold. Wear-resistant ones, such as iron farming tools, wear and tear slightly after long-term use to ensure efficient farming; corrosion-resistant ones, such as bronze ritual vessels, have survived years of erosion and elegance, witnessing the vicissitudes of history.
The physical characteristics of this product are rich and diverse, and each characteristic is interrelated and influenced by each other, which together constitute its unique quality and play their own key functions in different situations.

The main users of this product are related to people's livelihood, daily use, and craftsmanship creation. According to the "Tiangong Kaiwu", many utensils have their uses, and are closely related to people's livelihood and skills.
At the end of people's livelihood, the use of food utensils is great. Such as pottery urns and iron pots, which are necessary for cooking and storage. Pottery urns can store things and keep them fresh, so that grain vegetables and fruits can be stored for a long time without damage; iron pots have good heat conduction, helping people cook delicious food for everyone's dietary needs. People take food as their heaven, and these two are indispensable in diet, which is related to people's daily food and clothing.
On craftsmanship creation again, all kinds of tools have extraordinary effects. The sawing and planing of woodworking can make wood into tools, or tables and chairs, or beams, to build houses and make utensils, and help craftsmen turn wood into practical and beautiful things according to their wishes. And the loom is particularly crucial for textiles. It can make silk threads interweave warp and weft into fine satin, which not only meets the needs of the people for clothing and decoration, but also promotes the development of silk weaving technology, making Chinese silk famous, exported to foreign lands, and occupies an important position in trade exchanges.
Another example is farming equipment, plows, rakes, etc., deep plowing the land, making it easy for seedlings to grow. Farmers rely on this to cultivate, harvest grains, and provide food for the world. This is the function of products in agriculture, which is related to the foundation of the country and the livelihood of the people.
There are also weapons made of metal forging, which are crucial to the national defense military. The swords are sharp, the guns and halberds are majestic, and when defending the country, the soldiers hold them to defend the enemy, defend the tranquility of the territory, and protect the peaceful life of the people.
All of these, the use of the product may be related to people's livelihood, food, clothing, housing and transportation, or the inheritance of crafts, the development of skills, or the stability of the country and military defense. It has a wide range of uses and cannot be ignored in the operation of society and the lives of the people.

The method of making this product is based on the ancient method and has been completed through many exquisite processes.
First, the high-quality material is obtained, and its quality is pure and good. This is the foundation. As "Tiangong Kaiwu" said: "Where you make something, you must first have materials." Only by selecting materials can you lay the foundation for a good product.
Then purify it, remove its impurities, and make it pure and flawless. Just like the ancient cloud: "Clean its source, then work." After purifying the material, apply the method of calcination. With a moderate heat, calcined for a long time, to make the material strong and tough. "Tiangong Kaiwu" also has a cloud: "When the heat arrives, the quality is extraordinary." When calcining, it is necessary for the craftsman to carefully control, observe the changes in the heat, and observe the transformation of the material, so that no mistakes can be made.
After calcination, it will be molded into the mold. The system of the mold also needs to be exquisite, according to the shape and use of the utensil, to create the mold. When shaping, the technique is delicate, so that the outline of the utensil is clear and the lines are smooth.
After the shaping is completed, it is repeatedly polished. The grinding process, from coarse to fine, progresses layer by layer. First grind with coarse stone, remove its edges and corners, and flatten its surface; then grind with fine sand to make the surface of the utensil as smooth as a mirror. The ancients said: "Jade is not carved, and it is not a tool." The grinding skill is also for this reason. After this process, the
Finally, add decorative patterns. The method of decorative patterns, or carving or painting. The carver, like a pen, engraves exquisite patterns on the utensils, flowers, birds, fish and insects, landscape figures, lifelike; the carver, with color materials as ink, painstakingly draws, with gorgeous colors and charm.
This series of processes are interconnected, and all need the craftsman's heart to get a good product. This is the method of combining the product.

What is the price of an item in the market today? We should check the market conditions in detail and measure the range of its price.
Look at all kinds of merchants' transactions. This item circulates in the market, and its price varies from time to time, from quality to quality, and also changes according to the trend of supply and demand. There may be those who are high-priced with fine quality, and those who are average in quality.
Look at past transaction records. If it is of good quality, exquisite workmanship, and high-quality materials, it is often possible to get high prices in the market. However, the price is not unlimited. The city's human, material, and financial resources are limited, and everyone buys it with their means. Its price may reach several gold, or even dozens of gold.
If it is of average quality and is only for daily use, there is nothing surprising about it. Its price is relatively easy, or it can be counted as few as two silvers.
Also look at the supply and demand of the market. If there are many people who need this thing, but there are few people who produce it, the price will tend to rise; if there are many people who produce it, and there are few people who need it, the price will decrease. If it is during the New Year's festival or at the time of celebration, the use of this thing increases greatly, and there are many people who want it, and the price will also rise; when times change, the number of people who need it will gradually decrease, and the price will also fall.
Therefore, in general, the price of this item in the market, if it is of high quality, the price may be between a few gold and a few tens of gold; if it is of average quality, the price may be in the realm of a few money to a few silver. The fluctuation of its price depends on the quality, the change of time and the state of supply and demand.