What are the main uses of 3-iodopyridine?

3 - What is the main use of this item? "Heavenly Works": "The world's hemp, fur, and brown are all plain, so that the special color can be used, and the creation is not careful, I don't believe it." Dyeing is the use of this item in the world.

First, it is used for clothing. The ancients worshiped beauty, and the color of clothing shows identity and taste. The Chinese people often wear the color of this item, so that it can be used for ordinary people. As the "" says: "Clothes are in the right color, and clothes are in the right color." Those who are in the right color, blue, red, white, and black, respect; Color is the mixing of two correct colors, slightly. Dyeing makes the color of the service, also in line with the system.

Second, it is easy to use for products. This is the way to go, and it is a beautiful way to dye things in summer. The Western Regions, the states, and the states and states all admire its color. This is not to promote the development of the world, but also to promote the summer culture, so that other countries can see the subtlety of the summer skills.

Furthermore, it is used for the beauty of the work. Such as thorns, This order is orderly, orderly, and important for all things.

It is important to know how to dye, how to dress, how easy it is to do, how to work, or how to do it.

What are the physical properties of 3-iodopyridine?

3-Incense sticks, its physical nature is special. Incense sticks are mostly made of plant fragrances and other materials, and their shape is low, if it is straight.

In terms of the earth, the raw materials of incense sticks often contain spices such as sandalwood and agarwood, which give fragrance a special taste. Sandalwood has a mellow taste and can make people feel good; agarwood is quiet and quiet, and has the effect of calming the mind. And the earth is brittle and easy to fold, and needs to be properly held.


Its burning characteristics, burning incense sticks, can be caused by a weak flame, that is, the dark sparks, slowly burning. Burning the, Release, Soft Ethereal, Rise. The light of, because of the fragrance of the material and. The quality of the fragrance is high, and the fragrance is high, and it is close to the fragrance. If the material is low, it is low or low.

The burning rate of the incense is also fixed, usually depending on the thickness, short and raw material composition of the incense. Generally speaking, the incense of the ordinary incense can last for 10 minutes or even low. In the process of burning, the consumption of the incense, from the initial finish of the shaping, the incense ash. The incense ash is scattered, and the color is mostly gray-white.

In addition, the degree of dispersion caused by the incense burning creates a small difference in the surrounding air. This difference can be observed, and it quietly affects the micro-environment of the surrounding area. And the smell generated by the incense burning can be diffused in the air, changing the fragrance of the environment, creating or a quiet and elegant fragrance. In addition, the physical rationality of 3-stick incense, the location, the temperature, the taste, the quality, etc., all contain special characteristics, and have their special effects on the combination of each.

What are the synthesis methods of 3-iodopyridine?

In the era covered by "Tiangong Kaiwu", there were quite a variety of methods for casting cannons. The following is your detailed description:
- ** Mud casting method **: This is a traditional and commonly used method. First, the gun body is carefully made from mud, which is called a mud mold. Then carefully apply a parting agent to the mud mold, then apply special mud layer by layer around the mud mold, and then tighten it to make an outer mold. When the mud mold is completely dry, carefully remove the mud mold from the outer mold. This step needs to be taken with great care to prevent damage to the mud mold. Then preheat the mud mold and slowly inject molten bronze or molten iron. After the molten metal cools and solidifies, the outer fan is smashed, and the gun body initially takes shape, and then the surface is carefully polished and processed to remove excess burrs and unevenness. The advantages of this method are that the cost is low, the mud is easy to obtain, but it requires quite high craftsman skills. The production process of the mud fan is complicated, and a slight error will affect the quality of the gun body.
- ** Lost wax casting method **: The gun body model is carefully shaped with wax first, and its precision and detail expression are extremely high. Refractory materials, such as fine mud, are carefully applied on the surface of the wax mold, and repeated many times to form a strong refractory shell outside the wax mold. Subsequent heating causes the wax mold to melt and flow out, leaving a hollow cavity. The molten metal at high temperature is slowly poured into the cavity. After cooling and solidifying, the refractory shell is broken, and the gun body is completed. The lost wax casting method can cast extremely complex and fine gun bodies with high dimensional accuracy, but the wax material is expensive and the process is complicated. It is mostly used to cast high-end and precision guns.
- ** Forging method **: Select high-quality iron materials and heat them to a red-hot state in a high-temperature furnace. The blacksmith repeatedly beats with a sledgehammer. This process requires not only great arm strength, but also precise control of the beating strength and direction, so that the iron material is gradually formed. During the forging process, impurities are continuously extruded, the iron material becomes more and more dense, and the strength of the gun body is improved. After hammering, the gun body needs to be finely processed, and the inner wall of boring is smooth to facilitate the launch of the artillery shell. The gun body cast by the forging method has high strength and good toughness, but it is time-consuming and laborious, which is a severe test for craftsmen's skills and physical strength.

What are the precautions for storing and transporting 3-iodopyridine?

Where castings are retained and transported, there are many things to pay attention to. During storage, the first heavy environment. Castings should be placed in a dry place and should not be damp. If they are in a damp place, they will rust easily for a long time, damaging their texture and reducing their lifespan. And it is necessary to avoid dust. Dust accumulates in the casting, which not only stains its appearance, but also erodes the surface. Furthermore, the spatial layout should be orderly, and the castings should not be overcrowded to avoid collision with each other and damage its integrity.

When transporting, packaging is the key. It is necessary to pad with soft materials, such as cotton wool, soft cloth, etc., to prevent damage to the casting due to bumps and collisions. Handlers should be careful and not act recklessly. During the journey, the driving should also be steady, avoid sudden brakes and sharp turns, and prevent the cast from shifting and colliding in the car. If the cast is huge, it needs to be reinforced and secure to ensure transportation safety.

The handling of the cast should be based on its shape and weight, and the appropriate method should be selected. Light and small can be carried by a single person; serious, multiple people need to work together, or with the help of equipment. Do not force, causing damage to the cast and ensuring the safety of the mover.

Furthermore, when storing and transporting, the condition of the cast should be recorded in detail, such as the location of the retention, the transportation route, and whether there is any abnormality at the time of handling. If there is any change in the casting in the future, this record can be used as evidence for investigation and explain the reason. Please pay attention to all things to ensure that the casting is safe in storage and transportation.

What is the approximate market price of 3-iodopyridine?

Today, there is a number 3-item, and I want to know the price of it in the market. The price of various items in the market varies according to their quality, shape, and use. If this item is of high quality and rare, with exquisite craftsmanship, and is treasured by the world, the price will be high. However, if the quality is average and common, there is no difference, and the price should be equal.

I have heard that in the city, there are such utensils. If the material is made of precious objects such as gold and jade, beautifully carved, and decorated with treasures, the price may reach more than a thousand gold. Because of the precious material and the ingenuity of the craftsman, the labor time required is huge, so the price is high.

If you use ordinary wood and pottery materials, although there is a certain amount of workmanship, but because the material is not expensive, it is not extremely difficult to make, and the price may not be more than two silver dollars. Covering wood and pottery is easy to obtain in the market, and the production cost is not high, so the price is not too high.

There are others in between, with copper, iron and other materials, the craftsmanship is still good, and it is not extremely delicate or crude. The price of such utensils, or dozens of silver dollars. Covering copper and iron materials is more expensive than wood and pottery, and the production also requires certain skills. However, compared with gold and jade, it is still inferior, so the price is in the middle.

As for the No. 3-item, if its material and craftsmanship are similar to the fine gold and jade, the price may be nearly a thousand gold; if it is similar to the regular wood pottery, the price may be several taels; if it is like a copper and iron product, the price may be tens of taels. However, this is a rough estimate, and the actual price still depends on the specific situation of the object, and it will be determined after careful inspection by the person who knows the goods.