Pyrazine, 2,3,5-trimethyl-

In "Tiangong Kaiwu", the use of "two, three, five - ternary base -" is stated in the classics as follows:
This "ternary base" has its unique use in many skills and livelihoods.
In farming, it can be used as a supplement to fertile soil. Appropriate methods applied to the fields can make the soil fertile, increase soil strength, and nourish and thrive crops. Because of the various ingredients contained in the "ternary base", it can provide a variety of essential nutrients for crops, so that the root system of seedlings is developed, the branches and leaves are lush, and then the yield and quality of grains can be improved.
In the ceramic firing industry, the "ternary base" is also indispensable. Incorporating it into the clay in a specific proportion can improve the texture of the clay. When fired, the texture of the ceramic utensils can be denser, the color is more uniform, and its hardness and toughness can be enhanced. Ceramics fired in this way can become beautiful treasures, or can become daily practical products, all thanks to the "ternary foundation".
In metallurgy, "ternary basis" is also wonderfully useful. When smelting metals, adding "ternary basis" in an appropriate amount can help remove impurities in the ore, making metal purification more efficient. At the same time, the properties of the metal can also be adjusted, making the refined metal more tough and durable, suitable for building various utensils, weapons, etc.
As for building construction, the "ternary foundation" can also play a role. Adding building materials, such as lime, clay, etc., can enhance the adhesion and durability of the material. Houses, bridges and other buildings built in this way can withstand the erosion of time and the baptism of wind and rain, and stand for a long time.
It can be seen that the "ternary foundation" is of great value in various industries such as industry, agriculture and construction. It is a good material for creation and has made great contributions to the inheritance and development of ancient skills.

The three bases of two, three, and five have various characteristics in the nature of things.
First of all, the two bases. The two are often expressed in the state of bisection and balance. Looking at the principle of yin and yang, yin and yang are opposite, and they are mutually rooted, just like the nature of two bases. In the structure of things, there are two images coexisting, such as the north and south of the magnetic poles, and the relative positive and negative charges. This shows that the two bases are separated and dependent on each other to achieve a state of equilibrium.
As for the three bases. The three are said to be "three births and all things" in ancient times. Because the three can be constructed and stable, such as the shape of a triangle, it is stable in mechanics. Many things in the world often exist in three states. For example, matter has three states: solid, liquid, and gas. These three states interact with each other according to the change of temperature and pressure, indicating the way of change of all things. And the three states contain the order of beginning, development, and end. Everything follows this principle. For example, the rise and fall of personnel, and the birth and death of things, all have three stages.
The five fundamentals are also rich in meaning. The five elements of gold, wood, water, fire, and earth evolve the change of all things in the order of mutual growth and mutual restraint. Gold generates water, aquatic wood, wood generates fire, fire generates earth, and earth generates gold; gold, wood, earth, water, and fire. This cycle is endless, indicating the connection and restriction between all things. And there are about five human senses, namely seeing, hearing, smelling, tasting, and touching. These five help us feel the nature of all things and know the wonders of heaven and earth.
In summary, the two, three, and five basics, which are based on the nature of things, either show balance, or show stability and change, or show the connection and restriction of all things, are all important for observing the nature of things, and exist for the wonders of creation in heaven and earth.

The chemical properties of 2,3,5-trimethyl-group are as follows:
This compound, due to its trimethyl-group content, has a certain space resistance effect. The carbon of the methyl group can be reactive to a certain extent. Under the appropriate reaction conditions, the atom on the methyl group can be replaced by other groups. For example, in the reaction conditions, under the action of light or a specific catalyst, the methyl group can be replaced by the atom of the trimethyl group to form a derivative.
Furthermore, due to its alkyl nature, the trimethyl group compound has a certain lipid solubility, and in the presence of a solution, it often has good solubility. Moreover, the molecular force is mainly based on the Vander force, and the amount of molecular phase and the degree of branching are affected by the melting boiling. Due to the existence of trimethyl-groups in the branching, the molecular distance from the phase is large, and the Vander force is slightly weaker. Therefore, compared with carbon compounds, the melting boiling force is usually slightly lower.
In addition, in some oxidation antibodies, methyl groups in trimethyl-groups can be oxidized. If there are suitable oxidation and antibodies, methyl groups can be gradually oxidized by methyl groups, aldehyde groups and even carboxylic groups. In the synthesis, 2,3,5-trimethyl-groups can often be used as positioning groups, which affect the substitution of antigroups such as benzene. Because of its supply nature, it can increase the density of sub-clouds in the aromatic position and the X-position, and it is easier to generate X-rays instead of anti-rays, and X-rays are mainly generated in X-position and X-position.

In order to obtain the ternary basis of two, three, and five, the method is as follows:
First of all, you need to select good materials. The quality of the material is related to the quality of the finished product. It is fundamental to take tough and pure raw materials. If you choose iron for a cast sword, you must seek its essence, which is free of impurities and scale, in order to form a sharp blade.
Then, according to the ancient magic, you can perform the art of calcination. Grasping the heat is the key. If the fire is fierce, the material will be scorched, and if the fire is weak, the quality will not change. When a moderate fire is used, the raw material will gradually melt, just like a phoenix nirvana, and it will be reborn. Looking at the changes in its color and shape, and adjusting the heat in a timely manner, such as cooking and unwinding cattle, you can make the raw material reach
When the raw materials are just right to be calcined, the method of fusion is performed. The calcined materials are tilted in one place according to the precise proportion, so that they blend with each other. This process requires careful stirring, like a spoon, so that the materials are evenly mixed and indistinguishable from each other. In the meantime, a little special things may be added to help the fusion and increase its characteristics. This is a secret that is not passed on, but only known to the experienced.
After the fusion, quickly shape. With a special mold, hold the fused object and make it shape according to the mold. At this time, the action should be fast and stable, like Feihong Taping Snow, in one go. If it is slightly slow and the material cools, it is difficult to form an ideal shape.
After the shaping is completed, the tempering work is resumed. With a specific liquid, soak this initial form, this liquid may be spiritual water, or a secret medicinal soup, which can make the ternary foundation stronger. The soaking time is also fixed. If it takes a long time, it will hurt its quality, and if it is short, it will not be effective. After tempering, the ternary foundation is completed, and it has the characteristics of two, three, and five, which can be used in many subtle places.
This method of making ternary foundations has undergone years of precipitation, and countless craftsmen have pondered it. Every step contains wisdom, and you need to practice it before you can get a good product.

2, 3, 5 - three bases - have wonderful uses in many fields, especially as described in "Tiangong Kaiwu", which can be viewed from the aspects of agriculture, pottery casting, boats and carriages.
In the field of agriculture, the quality of seeds is related to harvest, and the beauty of three bases can help farmers identify good seeds. Good seeds have a unique combination of bases, which is like a secret language, suggesting their ability to resist drought and waterlogging, diseases and pests. According to this, farmers can choose good seeds to sow, such as "Tiangong Kaiwu", which says that farming needs to be in line with the weather, quantity and utilization, and three bases can help farmers should be in the right place at the right time to increase the opportunity for harvest.
As for the realm of pottery casting, clay composition and firing heat are the key. Three bases can explore the microscopic mysteries of clay and know its texture characteristics. According to this, potters can adjust the formula of clay, control the firing temperature, and form fine pottery. Just as "Tiangong Kaiwu" talks about the method of pottery casting, three bases add a sharp tool for potters to make pottery better quality.
Boat car manufacturing, material strength and performance are related. Three bases analyze the microstructure of materials to help craftsmen choose suitable materials. Taking a wooden boat as an example, the selection of wood depends on its resistance to water rot and wind and waves. Three bases reveal the microscopic characteristics of wood, helping craftsmen choose good wood to build a strong boat car, which meets the material requirements for boat car manufacturing in "Tiangong Kaiwu".
To sum up, the 2,3,5-tri-base is of great significance in the fields of agriculture, pottery casting, boat and car manufacturing, etc., such as the skills recorded in "Tiangong Kaiwu", and the three-base has contributed to its development and refinement.