2-Chloroquinoline-4-carbonxyic acid

The main purpose of 2-% square light-4-tannic acid is to have its important function in many domains.
In terms of blood, tannic acid has the effect of hemostasis. In case of small bleeding, apply a tannic acid-containing material to the mouth, which can help blood coagulation and stop bleeding. In ancient times, it was also often used in this way to stop bleeding in patients. And tannic acid has antibacterial ability, can inhibit the growth of multi-bacteria, and can cause some skin inflammation. For external use, tannic acid can eliminate bacteria and bacteria, and promote the combination of diseases.
In the industrial field, tannic acid is very important in leather tanning. It can combine with protein in leather, making leather more durable and not perishable. In the past, craftsmen tanned leather, relying on the characteristics of tannic acid, and turned raw hides into durable leather for use in leather goods, furniture, etc.

In printing, tannic acid also plays a role. Its properties can generate black deposits, which have been used to make inks. In ancient times, the ink used by scholars and ink artists may contain tannic acid, which is clear and can last for a long time.
In addition, tannic acid is also used in food processing. It can be used as an antioxidant for food, preventing food oxidation and prolonging the shelf life of food. For example, in some fruits and juices, tannic acid is added in an amount to maintain the quality of food.
Therefore, 2-% square-4-tannic acid plays an important role in many aspects such as manufacturing, engineering, printing and food, and has many benefits for people's lives.

2-% square light-4-butyric acid is a physical thing. Under normal conditions, it is mostly in the shape of a liquid, flowing to the ground, and slippery. If it is the flow of water, it is not water.

Its color, the color of 2-% square light-4-butyric acid, the color is clear and clear, like the clear color of the blue sky, the dye of a millimeter, can be transmitted to light, just like a thing, and it really exists in the world.
Smell its smell, there is a special fragrance, non-strong pungent smell, but it is not strong, seems to have a light fragrance, smelling it, as if you are in the spring flowers, but its fragrance has its own unique fragrance, and the fragrance of flowers is different.
And density, its water is slightly heavier, if it enters the water, it can sink and merge into the bottom of the water, such as sinking gold into the water, and it can be held in the water.
To solubility, it has a certain degree of solubility in water, which is not completely miscible, and can be mixed with water. It seems that the water has a subtle harmony, like friends gathering, both integrated and without losing their own characteristics. In the solution, its solubility is better, and it can be more soluble, such as ethanol, ether, etc. Mutual solubility, the melting of the phase, and the barrier, just like water and emulsion blend, and then a.
Its melting boiling rate also has a specific value. The melting rate also has a specific value. The melting rate, which solidifies the 2-% square light-4-butyric acid melting liquid, such as the spring of ice and snow, melts away; the boiling rate, the physical and chemical evaporation of the liquid rises in the air, such as the rise of the water, scattered in the air. This kind of physical property, which forms 2-% square light-4-butyric acid, makes it an irreplaceable function in the field of transformation and the world of work.

2-% square light is a type of light, in which the characteristics of the element are related to light. 4-Tannic acid, with general properties.
Tannic acid, also known as danic acid, its polyphenol compound. The color is light to brown, and it is often found in solid powders. In terms of solubility, tannic acid is easily soluble in water, ethanol, acetone, etc. Because its molecules have a polyester group, it can be formed into water molecules, so it can be well soluble in this solution.
Tannic acid is original. Because the phenol group of the molecule is easily oxidized, it can be oxidized and dark in the air for a long time. With this property, tannic acid can be used as a precursor in some chemical reactions, such as making the gold in some gold solutions be turned into gold.
Furthermore, tannic acid can act as a protein. In case of protein, tannic acid can generate insoluble sediment. This property is useful. For example, in the process of leather tanning, tannic acid can combine with protein in leather, making leather more resistant to corrosion and more resistant.
Tannic acid can also combine with more gold. For example, when tannic acid meets, dark complexes can be formed. Based on this, in the past, tannic acid-containing inks were used.
Tannic acid is rich in chemical properties, and has general uses in industrial, chemical, and other fields due to its solubility, virulence, protein, and the action of gold seeds.

To make dichloroethyl ether and tetrachlorobutyric acid, there are many methods, each with its own ingenuity.
To make dichloroethyl ether, one method can be obtained by reacting ethylene glycol with a chlorinating agent. First take an appropriate amount of ethylene glycol, place it in a clean reactor, and slowly add a chlorinating agent, such as sulfinyl chloride or phosphorus trichloride. During the reaction, the temperature should be controlled in a suitable range, generally 40 to 60 degrees Celsius. During this process, the chlorinating agent reacts with ethylene glycol, and the hydroxyl group is replaced by chlorine atoms to form dichloroethyl ether. And after the reaction, the product can be purified by distillation to remove its impurities and obtain pure dichloroethyl ether.
It is also prepared by reacting ethylene oxide with hydrogen chloride. Ethylene oxide is introduced into the reaction system containing hydrogen chloride. Under normal temperature and pressure or under slightly pressurized conditions, ethylene oxide is ring-opened and hydrogen chloride is added to obtain dichloroethyl ether. This method is simple and the yield can be observed.
As for the synthesis of tetrachlorobutyric acid, it can be started from butenic acid. The butenic acid is first dissolved in a suitable solvent, such as carbon tetrachloride, and then chlorine gas is introduced. During the reaction, light or heat can be used as the initiation conditions, chlorine gas is added to the carbon-carbon double bond of butenic acid, and under appropriate conditions, the side chains are also chlorinated to gradually form tetrachlorobutyric acid. After the reaction is completed, the product is purified through extraction, distillation, recrystallization and other steps.
can also be prepared by chlorination reaction using butyric acid as a raw material. Catalyze the reaction of butyric acid and chlorine with an appropriate catalyst, such as red phosphorus or sulfuryl chloride. In the reaction, chlorine gradually replaces the hydrogen atom in the butyric acid molecule, and after multiple steps of chlorination, tetrachlorobutyric acid is finally obtained. Pay attention to the control of reaction conditions, such as temperature, chlorine penetration rate, etc., to ensure that the reaction proceeds in the desired direction and improve the purity and yield of the product.

In today's market, the price of difuran is generally between 80 and 150 yuan per kilogram. The wave of its influence, because of the like. Among them, the price of raw materials, the demand for supply and demand, the technology of manufacturing, and even the system of government orders are all important.
To tetrachloroacetic acid, its price is between 120 and 200 yuan per kilogram. Just like difuran, its price is also affected by factors such as the availability of raw materials, the needs of the market, the quality of the work, and the direction of the policy.
The ups and downs of the city, the ups and downs of the waves, are determined. When it comes to business, it is necessary to measure the quality of the market, and to observe the quality of the market, and to be able to do so, and to seek the thickness of the profit. In terms of the quality of these two things, it is also necessary to provide for the consideration, and the quality of the goods, or because of the land, cannot be ignored.