benzo[b]thiophene, 3-(bromomethyl)-7-chloro-

What are the chemical properties of this product? "Tiangong Kaiwu" says: "Silk, hemp, furs, and browns in the world all have qualities, which make it possible to have a unique appearance. I don't believe it if I say that creation is not painstaking." The chemical properties of things are really related to their essence and changing characteristics.
As far as common things are concerned, take gold as an example. Gold is stable in nature and is not easy to change with other things. "Tiangong Kaiwu" also mentions the nature of hardware. Gold can always retain its quality in fire refining and is not easily lost. Because of its stable chemical properties, it is not easy to oxidize and is resistant to acid and alkali invasion. At room temperature, it hardly reacts with all kinds of chemical reagents, and only royal water is soluble, which is determined by its atomic structure and electron arrangement.
Another view of water, water is composed of hydrogen and oxygen. Its mild nature is the source of life for all things. Water can dissolve many substances and form solutions, which is one of its important chemical properties. In "Tiangong Kaiwu" involved in brewing and smelting, water is very useful. When water encounters alkali metals, such as sodium and potassium, it reacts violently, generating hydrogen and alkalis, which shows its lively side.
Let's talk about salt again. There are many salts, and sodium chloride is a common table salt. Its chemical properties are relatively stable, and it is not easy to decompose at room temperature and pressure. However, under the conditions of strong heat or electrolysis, chemical changes can occur. And sodium chloride is easily ionized in water, and this property is also relevant to many chemical production and daily applications.
All kinds of products, due to their different chemical compositions and structures, have different chemical properties. Or active, easy to react with others; or stable, can not change over time. This is the wonder of creation, and it is also the key to our study of physical properties and the use of materials.

The physical properties of this product are as follows: its quality is firm and dense, like the solidification of gold and stone, the sound of knocking, crisp and pleasant, like the sound of jade vibrating gold. Looking at its color, it is warm and lustrous, or like the white of suet, pure and flawless; or like the blue of sapphire, deep and distant, the brilliance is restrained, and it is comparable to non-vulgar things. Its touch is delicate, like stroking grease, slippery without leaving your hand, but it also has a certain sense of heaviness. When you hold it in your hand, you feel calm and steady.
Furthermore, the density of this product is moderate, it does not float or sink, and it is placed in water, just right. Its heat conductivity is good, and it can respond quickly to cold and heat, and its own temperature changes gently, which is warm in winter and cool in summer. And its toughness is quite strong. Although it is hit by external forces, it is not easy to break, and it seems to be tenacious.
It also observes its light transmittance. Viewed under light, translucent people have it, transparent people also have it, and the light penetrates it, such as the morning glow reflecting water, which is very beautiful, the light is scattered evenly, and there is no sense of abrupt. This is the remarkable physical properties of this product, which are unique and comparable to common things.

What is the main use of this product? "Tiangong Kaiwu" is a scientific and technological masterpiece written by Song Yingxing in the Ming Dynasty. The use of various things is described in detail in the book, and it is recorded in classical Chinese. Today, answering this question in classical Chinese is like the style of "Tiangong Kaiwu".
However, I don't know why this product is, it is difficult to determine its use. If it is a farming tool, such as a leathery, its main use is to plow the land. At the beginning of farming, farmers hold leathery, burying the soil and raising the soil to loosen the soil, so that seeds can take root and germinate, so that crops can grow well, which is the foundation of agricultural production.
If it is a textile tool, such as a spinning wheel, its use is to spin cotton, hemp and other fibers into threads. The woman sits in front of the spinning wheel and hands the axle to move the spinning ingot. The fibers then form threads, and the threads accumulate into strands, which can be used as raw materials for weaving, and then made into clothing to keep warm, which is an important matter for people's livelihood.
Another example is the kiln utensils for firing porcelain, whose purpose is to provide a high temperature environment for firing porcelain. The kiln worker places the blank in the kiln, controls the fire and heats up, so that the blank body undergoes high temperature tempering, physical and chemical changes, and finally becomes exquisite porcelain. Porcelain can be used as eating utensils, such as bowls, plates, and plates, and can also be used as ornamental furnishings for people to enjoy. It has both practical and aesthetic value.
Another example is weapons, swords, which can be used to kill the enemy for self-defense in wartime, fight in front of the battle, flicker with cold light, and overcome the enemy to win; non-wartime is also a martial artist's sword, highlighting identity and martial arts, and has the meaning of ceremonial symbols.
In short, the use of products varies from material to material, or is related to people's livelihood, clothing, food, housing and transportation, or used in production, labor, military defense, culture and art, etc., all to meet the various needs of the world.

The synthesis method of this product is as follows:
If you want to make this product, you should first take carefully selected materials. The main material needs to be pure and flawless, and the auxiliary materials should also be of high quality and conform to the law.
Then, in a clean and spacious workshop, follow specific steps. First place the main material in a special kettle, slowly bake it with a warm fire, and wait for it to be slightly soft, just like the snow melted at the beginning of spring, with a malleable state. At this time, add an appropriate amount of auxiliary materials, just like the spring rain, the silk merges.
Then, reconcile it with a wonderful method, and the method needs to be delicate and precise, like the ancient craftsmen carving beautiful jade, and there must be no mistake. When reconciling, look at its color and texture, and adjust the heat and intensity in a timely manner. If the color is not uniform, fine-tune the heat to make the color like morning glow, gorgeous and harmonious; if the texture is not as expected, or slightly soft, add material to fix it, or slightly hard, slow down the fire and soften it.
After the reconciliation is completed, move the resulting object into a special mold. This mold is shaped like a tool created by heaven and earth, regular and delicate. When moving in, be careful not to make any mistakes. After placing the mold, apply appropriate pressure, just like the earth gives birth to all things, so that it can be formed firmly. After
is formed, it goes through several fine processes, polishing, modifying, removing its edges and corners, making its surface as smooth as a mirror and as warm as jade. At this point, the synthesis of this product is completed, which can be said to be a combination of the ingenuity of heaven and earth and the ingenuity of craftsmen.

When something is produced in storage and transportation, everyone should pay attention.
When storing, the environment is the first priority. The degree of temperature and humidity is crucial. If the temperature is high and the humidity is heavy, it may cause the product to rot and deteriorate. Such as grains, when stored in a dry and cool place, to prevent mildew and insects. If the humidity is too high, the grains are prone to moisture, breeding mold, damaging its quality, and reducing its shelf life. The genus of fruits and vegetables requires more stringent degrees of temperature and humidity. Some fruits and vegetables need to be stored at low temperature, but they should not be too cold, otherwise freezing will cause rot. Such as bananas, it should not be stored in a low temperature place, otherwise the epidermis will turn black and the pulp will change.
Furthermore, the storage place must be clean and ventilated. Unclean places are easy to stain germs and affect the property. If the ventilation is not smooth, it will be humid and stuffy, which is also the cause of the deterioration of the property. And different products should be stored in different categories to prevent odor and mutual staining. Such as spices and grain, if stored in the same place, the flavor of spices will enter the grain, causing its flavor to be lost.
As for transportation, stability is essential. The bumps of driving and the collision of transshipment can damage the property. Fragile things, such as ceramics and glass products, must be padded with soft objects and properly fixed to prevent them from breaking. And fresh and live products need to maintain their living environment during transportation. Such as fish and shrimp aquarium, sufficient water-soluble oxygen must be prepared to control the water temperature and water quality to ensure their survival.
At the same time, the aging should also be taken into account when transporting. Perishable products, such as fresh-cut fruits and vegetables, cooked food, etc., should be transported quickly to keep fresh in time. Delay and delay, or cause the product to rot and deteriorate, making it unbearable to eat.
In addition, packaging should not be neglected. Good packaging can protect the product in the storage and transportation room. Packaging materials must be suitable for the characteristics of the product, and have the ability to protect and keep fresh. For example, vacuum packaging can extend the shelf life of dry goods, and plastic wrap can protect the moisture of fruits and vegetables.
When storing and transporting products, it is necessary to carefully observe the environment, stabilize the transportation, grasp the aging, and carefully select the packaging. All kinds of attention can be paid to the quality of the products to prevent them from being damaged.