4-pyridinemethanamine, 3-chloro-

This is a question about the chemical properties of the product 3-hydrogen-4-ethylene ether. Hydrogen, the lightest and most common element in the universe, is chemically active and often plays an important role in various chemical reactions. Ethylene ether, an organic compound containing carbon-carbon double bonds and ether bonds.
In this substance, hydrogen atoms may exhibit unique chemical behaviors. Because hydrogen has a tendency to give electrons to form hydrogen ions (H 🥰), under appropriate chemical conditions, or participate in acid-base reactions. When exposed to strong oxidizing agents, hydrogen may be oxidized and lose electrons.
In the structure of ethylene ether, the carbon-carbon double bond imparts unsaturation to this compound, making it prone to addition reactions. If it encounters electrophilic reagents such as halogen and hydrogen halide, the double bond can be opened, and electrophilic reagents are added to it to form new compounds. Although the etheric bond (C-O-C) is relatively stable, under certain conditions, such as strong acid action, it may break and participate in chemical reactions.
In addition, the chemical properties of this substance are also influenced by the interaction of atoms in its molecular structure. Factors such as the distribution of electron clouds between atoms and steric resistance all affect its reactivity and reaction path. The interaction between the hydrogen atom and the ethylene ether structure may cause the electron cloud to shift, which in turn affects the electron density of each atom and changes its chemical activity. For example, carbon atoms connected to hydrogen may change the electron cloud density due to the electronegativity of hydrogen, showing specific reactivity in nucleophilic or electrophilic reactions.

Mercury is a watery substance in the five elements, which is fluid and changeable. Its use in alchemy is quite critical. As for realgar, it is also a commonly used substance in alchemy.
Mercury has many uses in alchemy. First, the active properties of mercury can react with many metals to form amalgams. In the process of alchemy, alchemists hope that by fusing mercury with other metals, the properties of metals can be changed, so as to refine so-called miraculous medicinal pills. For example, gold amalgam is formed with gold to facilitate the processing and processing of gold, or in the subsequent refining steps, the characteristics of gold can be integrated into the medicinal pill, giving the medicinal pill a different "divine power".
Second, mercury acts as a medium in some alchemy formulas. It can promote the mutual reaction and fusion between different drug components. During high-temperature refining, the fluidity of mercury can drive other solid drug components to mix better, so that the reaction is more sufficient, in order to refine medicinal pills with uniform composition and high quality.
Realgar also plays an important role in alchemy. The main component of realgar is arsenic sulfide, which has special chemical properties. In alchemy, realgar can be used as an added ingredient to interact with other drugs such as mercury. On the one hand, the components of realgar can participate in chemical reactions, changing the chemical composition of medicinal pills, thereby endowing medicinal pills with different physical and chemical properties. On the other hand, the ancients believed that realgar had the effects of warding off evil spirits and repelling insects. Adding it to the alchemy formula, they hoped that the refined medicinal pills would not only prolong life, but also have the magical effect of exorcising evil spirits and avoiding disasters.
However, it should be understood that although ancient alchemy contains the spirit of ancient people's exploration of longevity and material changes, its cognition and methods are mostly limited by the conditions of the time. Mercury and realgar are both toxic. Long-term use of medicinal pills containing such ingredients will not only fail to prolong life, but will seriously damage physical health.

"Tiangong Kaiwu" is a scientific and technological masterpiece written by Song Yingxing in the Ming Dynasty. There is a detailed description of the tile-making process, which can be compared to the manufacturing process of Hai- 4 to its armor.
Where tile is made, soil is selected first. Soil with suitable viscosity must be used to remove impurities and mash it into powder. This is the basis for tile making, and the same is true for the selection of materials for armor manufacturing. Select high-quality metals, such as steel, to remove impurities, ensure that the material is pure, and build a solid foundation for the follow-up.
After the soil powder is ready, add water and mud to make it soft and uniform, and easy to shape. In armor manufacturing, the metal needs to be smelted and heated to a malleable state, which has good processing properties like tile mud. The
tile is shaped by a mold. The mud is filled into the mold to make a tile billet and dried to dry. The production of armor is by beating, forging, etc., the metal is shaped according to the style of the armor, or die-cast with a mold, and then preliminarily trimmed.
The tile billet is dried and then fired in the kiln. The firing temperature is extremely critical and needs to be strictly controlled to make the tile have a solid texture and uniform color. In the manufacture of armor, the formed armor also needs to be heat treated. Through quenching, tempering and other processes, the hardness, toughness and other properties of the armor can be improved to make it strong and durable.
After the tile is fired, it may need to be glazed to add beauty and water resistance. After the armor is built, in order to prevent corrosion and enhance the appearance, surface treatment may be carried out, such as painting, metal plating and other processes.
In summary, the manufacturing process of the armor, from material selection, shaping, heat treatment to surface treatment, is similar to the tile-making technology in "Tiangong Kaiwu" in many process links, all follow the basic manufacturing logic of material treatment, molding, performance optimization, and appearance improvement.

Saltpeter should be carefully stored and transported. Saltpeter has a strong nature and will explode in case of fire, so when hiding, choose the place where it is most important. You must choose a dry and cool place, avoid direct sunlight and humidity. And do not be in the same place as flammable and explosive things to prevent them from interacting and causing disasters.
It is also important to be careful when hiding utensils. It should be stored in a sturdy utensil, tightly sealed to prevent it from leaking out, and to prevent foreign objects from contacting it. If hidden in a warehouse, it is advisable to set up ventilation equipment in the warehouse to allow air to circulate, and the ventilated place should also prevent rainwater from pouring in.
As for transporting it, you need to be more cautious. The cart carrying nitrate must be sturdy and stable. When driving, it should move slowly and steadily, avoiding bumps and sudden brakes, and preventing saltpeter from triggering accidents due to vibration. The escort must be familiar with its nature and be prepared in case. Avoid busy cities and residential houses along the way, and choose a remote path. If you are not careful, you will cause harm to the innocent, and you will be guilty of a great crime.
Furthermore, regardless of the transportation of Tibet, there should be a special person in charge. This person must know the nature of saltpeter, understand the rules of transportation in Tibet, and follow the law. Daily inspections should not be slack. If you see that saltpeter has the appearance of deliquescence or leakage, deal with it quickly. If there is a slight mistake, the consequences are unimaginable, and it is related to human life and property. How can you not be cautious.

I think what you are asking is about the market price range of hydrogen and its armor. However, this is very difficult to determine, and the market price often changes due to changes in time, place, and supply and demand.
If the price of hydrogen is said, it is affected by many factors. In the preparation method, electrolysis of water to produce hydrogen requires a lot of energy, and the cost may be high; while fossil fuel reforming to produce hydrogen, the cost may fluctuate due to raw material prices. And the purity of hydrogen is also related to the price, and the price of high purity is high. Furthermore, the difficulty of storage and transportation also makes the price different. Low-temperature liquid storage, high-pressure gaseous storage, etc., each have their own cost considerations. In transportation, pipeline transportation and vehicle transportation, the cost is also different. It is based on the market price of hydrogen, ranging from a few to tens of yuan per kilogram or from a few to tens of yuan per kilogram, depending on the specific situation.
As for its armor, this is not something I am familiar with, or a rare device. If it is traded in the market, its price range is also difficult to determine. Ancient armor has different materials, bronze, steel, etc. Those with excellent materials are more expensive. The simplicity of the craftsmanship is also the key. Those with meticulous craftsmanship and complicated decoration must be more expensive than those with ordinary patterns. And its age and the degree of preservation all affect its price. If it is ancient and well preserved, it may be worth a thousand gold; if it is seriously damaged and recent, the price may be inferior.
In short, the market price range of hydrogen and its armor varies due to many factors, and it is difficult to hide it in one word. It is necessary to consider the general situation in detail to obtain a rough idea.