2-n-amylpyridine

The main use of 2-N-bone rivets is for the connection and fixation of utensils. According to the records in "Tiangong Kaiwu", it has vital functions in various fields such as construction and equipment production.
The construction of the watcher, the construction of the structure of the house, and the stable connection between the beams and columns often rely on the power of 2-N-bone rivets. It can make the wood and stone materials closely connected, resist the invasion of wind and rain, and the wear and tear of the years, so that the house can stand for a long time without falling. For example, the construction of temples and pavilions requires huge trees as beams and thick stones as pillars. If there is no strong connection between these behemoths, how can they become a grand sight? 2 - N - Bone-removing rivets are just like the hands of a skilled craftsman. They pass through wood and stone, so that all parts are entwined and bear the weight of a large building.
As for the production of equipment, no matter whether it is agricultural tools, weapons, or the genus of vehicles and ships, 2 - N - Bone-removing rivets are indispensable. In terms of agricultural tools, the combination of the shank and the blade of the scorpion, with the help of rivets, can make the equipment sturdy and durable when farmers are farming, not worried about breaking, and improve the efficiency of farming. Weapon manufacturing is related to life and death. The rivets are used to connect the shank and sheath of the sword and the blade and leaf of the armor, which can ensure that the weapons will not fall apart and be damaged during intense fighting, and play their effective role. In the manufacture of vehicles and ships, the splicing of ship plates, the assembly of frames, and the 2-N-Bone Removal Rivets also play a silent role to ensure the safety of vehicles and ships traveling between land and water.
It can be seen that although the 2-N-Bone Removal Rivets are small objects, they are the key to maintaining the stability of utensils and assisting the display of skills. They are of great service to the national economy and people's livelihood.

2-N-The physical properties of the seedlings are:
First, this person is impatient and impatient. If you want seedlings quickly, you can't follow the laws of nature, and you can pull up the seedlings with your hands. As "Mencius · Gong Chou Shang" said, "The Song people have those who do not take care of their seedlings without taking care of them, but they can be worried and interfere without waiting for the seedlings to follow the natural growth of the day. This is a sign of recklessness and lack of patience.
Second, this person is stupid and unwise. If you don't follow the way of plant growth, you can promote them by using manpower to raise them. You don't know how solid the foundation is, how simple it is. It is just like "helping the seedlings, not benefiting the disciples, but harming them", which breaks the normal life process of the seedlings, and most importantly causes the seedlings to wither, which is enough to know the law of the development of other things.
Third, this person is solid and self-confident. Without telling others, he will go his own way. In the process of making seedlings, if he can come to repentance, he may save one or two, but he still holds on to himself and allows it to be delayed, showing his character characteristics that are fixed on himself and not kind of words.
In, 2-n-the nature of the seedlings, impatience, foolishness, and stubbornness are both, such a way of acting is a way of thinking, and the result of causing things to happen is the world's precepts.

2-N-alkynyl alkyne is a kind of alkyne, which has unique chemical properties. In ancient Chinese, its properties are as follows:
First, it has the property of addition. It can be added with many substances. If it is added with halogens, it can be added according to the following formula: R - C ≡ C - H + X ³ → R - C (X) = C (X) - H, if the halogens are sufficient, it can be further added to obtain R - CX ³ - CX ³ - H. This is because the carbon-carbon triple bond in the alkynyl group is rich in electrons and has nucleophilic properties, which is easy to add with electrophilic reagents such as halogens. It can also be added to hydrogen halide, and follows the Markov rule, that is, hydrogen atoms are added to the carbon atoms containing more hydrogen. For example, R - C ≡ C - H + HX → R - C (X) = CH ³, and then R - CH ³ - CHX ³ can be obtained.
Second, an oxidation reaction can occur. Oxidation with strong oxidants, such as acidic potassium permanganate solutions, will break the alkynyl group to form carboxylic acids or carbon dioxide and other products. If alkynes are terminal alkynes, that is, R - C ≡ C - H, under appropriate oxidation conditions, R - COOH and CO2 can be formed. This reaction can be used to identify alkynes, and the oxidation products of alkynes of different structures are different.
Third, alkynes are weakly acidic. Hydrogen atoms attached to three-bonded carbon atoms in alkynes are weakly acidic and can react with strong bases such as sodium amide (NaNH ²) to form sodium alkynide (R-C ≡ C-Na). This property is due to the strong electronegativity of three-bonded carbon atoms, which makes the electron cloud of C-H bonds biased towards carbon atoms, causing hydrogen atoms to leave more easily in the form of protons. Sodium alkynide can be used as a nucleophilic reagent to undergo nucleophilic substitution reactions with halogenated hydrocarbons, which is an important method for increasing carbon chains in organic synthesis.
Fourth, polymerization can be carried out. Under the action of a specific catalyst, the alkynyl group can polymerize to form a polymer compound. For example, acetylene can be polymerized into polyacetylene under certain conditions. This polymer has special electrical and optical properties and has important applications in the field of materials science.

"Tiangong Kaiwu" is a scientific and technological masterpiece written by Song Yingxing in the Ming Dynasty. Among them, the manufacturing method of 2-n-cupping is recorded as follows:
To make a cupping, first take a good clay. The quality needs to be fine and sticky, and it is better to have no sand impurities. Place the clay on a flat ground, soak it with water, and knead it repeatedly until it is uniform and soft.
Then, the plastic billet is formed. By hand or with the help of utensils, the clay is shaped into a pot shape, and its shape is abundant and the mouth is flat and smooth to prevent skin damage during use. The thickness of the tank wall is moderate, if it is too thick, the heat transfer will be slow, and if it is too thin, it will not be resistant to fire. < Br >
After forming, dry the body in the shade. Do not expose to the hot sun to prevent dry cracking. When the body is semi-dry, wipe the surface with a damp cloth to make it flat and smooth.
And then enter the kiln for firing. The control of the kiln temperature is very important. First, dry it slowly over a low fire to make the body lose moisture, and then calcine it with a fierce fire. The method of observing the heat depends on the color of the flame in the kiln and the color of the body. When the color of the ceramic billet turns red and the texture is hard, the fire can be stopped.
When the kiln temperature gradually drops, take out the pot, at this time the pot has taken shape. However, in order to make its sealing better, it is also necessary to apply a special glaze to the mouth and body of the can, and then enter the kiln to roast at low temperature to make the glaze evenly adhere. After cooling, the pot is ready. This pot has a solid texture, moderate heat transfer, and uniform suction force, making it a good tool for cupping.

For those who use dinitrogen rakes, in the process of use, they should pay attention to all things, as detailed in the following:
First, the device should be refined. The system of dinitrogen rakes must be well-crafted and the material is tough. If the quality is poor, it will be easily damaged during work, resulting in a failure. In the past, there were skilled craftsmen who used good iron to make rakes. After multiple tempering, the blade was sharp and solid, and it was used for several years without fatigue. This is the paradigm of the device.
Second, how to operate it well. When raking, use force evenly, and the pace should be steady. Do not be too fierce, and do not be too slow. If it is too fierce, it is easy to hurt soil and seedlings, and if it is too slow, it will be twice the result with half the effort. Such as a farmer's field, according to the softness and hardness of the soil, the density of the seedlings, and the size of the adjustment force, the raking is orderly, and the soil is loose and the seedlings are safe. This is a good way to operate.
Third, take care of it for a while. After use, you need to clean the soil and place it in a dry place. If you leave wetlands for a long time, it will cause rust. And regularly check its parts. If there is any damage, it will be repaired as soon as possible. Gu Yun: "If you want to work well, you must first sharpen your tools." If you take good care of it, the rake will be durable and help with farming.
Fourth, know the land and be suitable for raking. Different places have different soil properties. Fertile soil, barren soil, clay soil, and sand, the raking method used is different. The fertile soil should be raked lightly to maintain the strength of the ground; the barren soil should be raked deeply to make the fertilizer and the soil even; the clay should be raked slowly, and the sand should be raked quickly. If you can understand this principle and apply the rake according to the ground, you can get twice the result with half the effort.
Anyone who uses a dinitrogen rake should pay attention to the equipment, operation, maintenance, and knowledge of the land, so that they can do their best and benefit the prosperity of agriculture.