4-quinolinecarboxylic acid, 2-chloro-

The chemical properties of this product are related to its essential characteristics and are of great importance. Although the chemical properties of this product do not fully correspond to the categories involved in "Tiangong Kaiwu", the reasons for the chemical properties of various products are discussed in the book, or it can be deduced a little.
covers all things in the world, and the chemical properties are determined by its composition and internal structure. As "Tiangong Kaiwu" said, the chemical properties of gold are stable, and it is not easy to react with other products. Because of its stable atomic structure and orderly arrangement of outer electrons, its chemical activity is low, and it is difficult to change with ordinary reagents at room temperature and pressure. Silver is also relatively stable, but it is slightly inferior to gold. In a specific environment, if it encounters sulfur-containing materials, it is easy to form silver sulfide and turn black.
And so on, if this product is composed of multiple elements or compounds, its chemical properties depend on the interaction of each component. If it contains active metal elements, such as sodium, potassium, etc., or has strong reducing properties, it will react violently in contact with water to form hydrogen and corresponding bases. If it contains halogen elements, such as chlorine, bromine, etc., halides may have specific chemical activities, or may participate in reactions such as substitution and addition.
And the chemical properties of substances are greatly affected by external conditions. "Tiangong Kaiwu" also mentions the influence of heat, water quality, etc. When the temperature rises, the rate of many chemical reactions accelerates, and the originally stable substances may become active. For example, gold can combine with oxygen to form oxides at high temperatures. Another example is the change of pressure, which may also affect the reaction equilibrium and material state, and then change the chemical performance.
Although it is not possible to know the specific chemical properties of this product, according to the wisdom of "Tiangong Kaiwu", it can be considered from multiple aspects such as composition, structure, and external conditions. After experiments and observations, its chemical properties will be clarified, so as to make good use of it and give full play to its maximum effectiveness.

This product is widely used and has applications in many fields.
In the field of war, it can be used for marching and surveying the terrain. In the past, there were frequent wars, and generals who wanted to win the game had to know the terrain and landforms in detail. This product can accurately present the trend of mountains and rivers, the distribution of rivers, and the dangers of passages, helping generals to understand the enemy's reality and find a good way to break the enemy. For example, the Marquis Zhuge Liang, on the occasion of the Northern Expedition, used similar things to understand the terrain of Cao Wei's mountains and rivers, so that he could arrange troops and advance and retreat.
In the place where buildings are built, it can be used for planning, design, and construction. To build palaces, cities, and pavilions, it is necessary to carefully consider the terrain and terrain. This product can show the ups and downs of the land and the surrounding environment, so that the craftsman can build according to the situation, ensuring that the building is stable and practical. Li Yan wrote "Construction French Style", in which architectural planning may also use such tools to make the building exquisite.
In the place of commerce and trade, it can guide the business travel itinerary and find the way. The ancient business travel, traveling to and from all directions, needs to know the distance of the road, the obstacles of mountains and rivers, and the distribution of towns. This product can point out the road for it, help it avoid dangerous places, find convenient and safe trade routes, and also help it plan trade routes to improve business efficiency. For example, the business travel on the Silk Road, or rely on this to identify the direction, shuttle between east and west commerce.
In the place of geographical investigation, it can help scholars to explore the geography of mountains and rivers, and the customs and customs. Geographers want to know the geography of the world, and this product can show the appearance of the earth, help them mark the location of mountains, rivers, and lakes, and explore the traces of geographical changes. Xu Xiake traveled all over the world to investigate geography. If he obtained this product, he may be able to record geographical phenomena in more detail and leave more complete geographical works for future generations.
From this perspective, this product has important functions in the fields of war, construction, commerce, and investigation, providing key assistance for the smooth progress of all things.

The method of making billets of this utensil is very delicate, and it is related to the shape and quality of the utensil. In the past, "Tiangong Kaiwu" has a cloud, and the method of making billets varies depending on the material and use.
Where clay is used as material, first pick the soil from the ground, and choose the one that is delicate and sticky. Then, soak the soil in water to make a mud paste. This is the method of making mud. After the mud is formed, remove its coarse residue and leave its essence to achieve the purpose of pure texture.
Then, or knead it by hand, with the ingenuity of the hand, mold the mud into a billet, which requires skilled craftsmen to make the body uniform. Or use a mold, according to the mold, the shape can be maintained and unified, but the mold also needs to be exquisite, in order to show the beauty of the utensils. For example, the genus of making plates and saucers is mostly supplemented by molds, which can form a regular shape.
If it is a metal utensil, its way of making billets is different. Mining stone, after smelting, turns the ore into a liquid. Then, pour the liquid into the fan, and the mold of the casting tool is also. The shape of the fan determines the appearance of the utensil. Wait for the liquid to cool and solidify, take out the rough billet, and then hammer and forge to make the texture tight and eliminate defects. Such as the billet of the casting sword, when forging, it needs to be properly heated, beaten vigorously and evenly, so that the sword body can be tough.
As for wooden utensils, choose good materials, depending on the texture and texture of the materials. Or saw or cut, according to the shape of the design, the blank is initially formed. When sawing, it is necessary to follow the texture to avoid cracking of the wood; when cutting, strive to be flat and smooth. Such as making the blank of tables and chairs, first saw the wood to the required length, and then cut the surface to make it flat and square.
In general, the method of making billets, whether pottery, gold, or wood, needs to be well-selected, and according to the characteristics and uses of the object, the appropriate method can be applied to obtain the blank of the utensils, which lays the foundation for the subsequent process and becomes a beautiful tool.

Looking at this product, if you want to know its market prospects, you should carefully observe all kinds of factors. Let's try to use the ancient saying today, and analyze it for you.
Those who are in the market are still the waves of the sea, which are fickle. The entry of this product into the market, if a boat is sailing on the sea, the situation they encounter is not fully known. Looking at its quality, if the quality of beautiful jade is pure and moist, the craftsmanship is exquisite, just like the wonders of Tiangong Kaiwu, which is the foundation for a foothold. With this, it is easy to win people's favor. In the market, it is like the brilliance of a pearl, attracting the attention of businesspeople and customers, and the buyer is attracted.
And the luck of the husband is also important. If the world is prosperous, people's livelihood is prosperous, and everyone has the heart to seek innovation and pursue differences, this product will be vigorous and prosperous if it is needed at the time. For example, when people in the world advocate convenience, if the product can be used conveniently, it will be like a boat sailing along the water, unimpeded.
However, the competition in the market is also like a group of heroes. Others' products may have been preconceived and have a deep foundation. If this product wants to stand out, it needs to be exceptional. Or find a way, use innovation as the edge, and break through the encirclement; or strive for excellence, so that the quality is extraordinary, and the word of mouth is far and wide.
Furthermore, the way of marketing should not be ignored. It needs to be widely known, like a beacon fire to spread letters, so that everyone knows its goodness. Or in the bustling place of the market, spread its banner and show its style; or borrow the power of merchants to pass through the four directions.
In summary, the market prospect of this product, although it cannot be asserted, if the quality is good, it should be moved in time, make good use of marketing techniques, avoid the sharp edge of competition, raise the strength and make up for the weakness, the prospect can wait. Like the fledgling phoenix's first cry, its voice is not wide, but its wings are gradually gaining strength. With time, it may soar above the nine heavens and occupy a place in the forest of the market.

Looking at this product, its safety is of great importance and cannot be ignored. The safety of a man's things is like the stability of a boat, which is related to the safety of operation. The quality of this product needs to be measured with caution.
First look at its materials. If the materials are not good, it is like the foundation of a building is not solid. It is necessary to check whether the raw materials are produced and whether they conform to safe and good regulations. If you top up with inferior materials, although they have their appearance, they will be difficult to hold for a long time, and there will be safety problems. Gu Yun: "If you want to do good things in your work, you must first sharpen your tools." The material is the beginning of the tool, and you must not choose it carefully.
The second time you look at its manufacture, the quality of the manufacture depends on the quality of the craftsmanship. A good creator follows the rules and is meticulous in the slightest, and sees the truth in the details. Its system must conform to the principles of heaven and earth, and it goes with the nature of nature, and it does not violate or go against. If it is made carelessly, does not abide by the law, and acts recklessly, it will be full of cracks, and there will be many dangers to safety.
Furthermore, test it for use. Use it and it can be safe, it is a good thing. It needs to be tried in many ways, like being in an abyss, like walking on thin ice. Observe whether it is used in a constant manner, whether it is stable and not dangerous; observe whether it can be responded to without chaos under different circumstances. Only when it is used safely can you trust its ability to be safe.
It is also necessary to test its supervision. The ineffectiveness of supervision is like a royal horse without reins. Strict regulations must be set up, clear responsibility to the public, so that the creator and the inspector are afraid and dare not slack off. In this way, the product can be guaranteed to travel in the way of safety.
However, the matter of safety is not a temporary achievement, and it needs to be constantly paid attention to. Daily, provincial and monthly inspections. A little negligence, previous efforts are in vain. Therefore, if you want to know the safety of this product, you must carefully examine the materials, manufacturing, use, and supervision, so that you can be safe in the state of safety.