2-CHLOOTHIOPHENE-3-BORONIC ACID

What is the main use of 2-% cyanic acid-3-boric acid? Cyanic acid is toxic, but it also has its uses in industrial and industrial fields. For industrial purposes, it is often used as a raw material for the production of nitrile compounds. For nitriles, it can be used to synthesize plastics, rubber and other materials. For example, acrylonitrile can be polymerized into polyacrylonitrile, which is a raw material for the synthesis of nitrile, and is used in industrial applications. In terms of industrial production, cyanic acid derivatives are special and can be used in the synthesis of certain compounds. However, due to their toxicity, it is necessary to use them with caution.
For boric acid, the use is not good. For glass engineering, boric acid can increase the resistance, transparency and quality of glass. Changzhi's borosilicate glass, due to its boric acid content, has the characteristics of high resistance and corrosion resistance, and is used in indoor appliances, cookware, etc. In ceramic engineering, boric acid can be used as a melting aid to reduce the degree of ceramic formation and improve the mechanical properties of ceramic surface light. In the field of boric acid, dilute boric acid solution has the effects of disinfection, sterilization, and anti-corrosion, and is often used in ophthalmic washing, skin cleaning, etc. In addition, boric acid is also useful for boron fertilizer, which can be used as boron fertilizer to provide plants with the necessary trace element boron, promote plant growth and fertility, and improve fruit setting rate.

To make dichloroethane and trichloroacetic acid, there are various methods.
To make dichloroethane, one method is the addition of ethylene and chlorine. Ethylene, containing carbon-carbon double bonds, has active properties. Ethylene is introduced into a reactor containing chlorine gas. Under suitable temperature and pressure, one of the double bonds breaks, and chlorine atoms are added to the two carbon atoms to obtain dichloroethane. This reaction condition is easier to control and the yield is quite high.
Another method can be replaced by ethane and chlorine light. Hydrogen atoms in ethane molecules can be gradually replaced by chlorine atoms. Under light conditions, chlorine molecules first split into chlorine radicals, which capture hydrogen atoms in ethane to generate hydrogen chloride and ethane radicals. Ethane radicals then interact with chlorine molecules to obtain monochloroethane. Monochloroethane can continue to react. After controlling the amount of chlorine and the reaction time, dichloroethane can be obtained. However, this reaction has many side reactions, and the product is complex, making it difficult to separate.
As for the synthesis of trichloroacetic acid, the common method is that acetic acid and chlorine are chlorinated under the action of a catalyst. Using acetic acid as a raw material, an appropriate amount of catalyst, such as red phosphorus or sulfur, is added to the reactor, and chlorine is introduced to obtain monochloroacetic acid. Monochloroacetic acid can be further chlorinated, and after a multi-step reaction, trichloroacetic acid is finally formed. During the reaction, it is necessary to pay attention to the rate, temperature and catalyst dosage of chlorine gas to promote the reaction to produce trichloroacetic acid.
Another method of oxidation of trichloroacetic acid using trichloroacetaldehyde as raw material is prepared. Under the action of an oxidizing agent, the aldehyde group is oxidized to a carboxyl group to obtain trichloroacetic acid. Commonly used oxidizing agents include nitric acid, etc. This reaction path is more direct and the product purity is also good.

2-% cyanic acid-3-boric acid is a chemical substance, each of which has its own physical properties.
Cyanic acid, under normal conditions, is a liquid with transparent color and high performance, and tastes like bitter almonds. Its boiling temperature is low, 26-25 degrees Celsius, which makes it easy to vaporize. The density of water is slightly smaller, 0-69 grams per cubic centimeter. It is easily soluble in water, ethanol, and ether, etc. It can be partially acidic in water and is weakly acidic. However, its toxicity is so high that it can be life-threatening due to small amounts of inhalation or skin contact. It can quickly combine with biological substances, dry cellular respiration, and cause organ hypoxia and failure.
Boric acid is a kind of white crystalline powder or crystalline powder. Its melting height is 186 degrees Celsius. The phase density is 1.47 to 1.50. The solubility in water is limited, and the solubility increases as the solubility increases. The acidity of boric acid is weak, and the aqueous solution of boric acid is slightly acidic. In addition, boric acid has a certain water absorption and can be used for drying. At the same time, in the flame, boric acid can make the flame show a special color, which is often used for the qualitative determination of boron. And because of its inhibitory effect on many microorganisms, it is also commonly used in disinfection and corrosion prevention.

2-% fluoric acid-3-boric acid in storage and storage, pay attention to the following things:
Fluoric acid is a corrosive material, and its glass, ceramics and other materials have a corrosive effect. Plastic containers are required for storage, because they can resist the corrosion of fluoric acid. And they should be stored in a well-preserved and well-connected environment, and the source of fire and heat should be prevented from accelerating and increasing the risk due to the increase in temperature. If the package must be dense, it is clear that there are warnings such as "corrosive items". People should also have knowledge and be familiar with emergency management methods. If it is accidentally leaked, the crowd should be evacuated quickly, and the manager should wear protective clothing and masks, and neutralize it with lime and other substances.
Boric acid is weak in corrosion, but it should not be lost. Keep the container sealed to avoid moisture, because it has a certain water solubility, and it is easy to dissolve in the moisture environment. The same place of storage needs to be cleared for drying. The bag in the container is firm to prevent the leakage of boric acid due to damage. If there is a leak, it needs to be cleaned up in time to avoid it being mixed with other substances or polluting the environment. The depositor and the depositor also understand the basic nature of boric acid. In case of an accident, appropriate measures can be taken. In addition, in both cases, it is necessary to follow the relevant procedures and operating procedures to ensure the safety of people and the integrity of goods.

In today's world, business conditions are ever-changing, and it is not easy to determine the market prices of 2-mercaptoethanol and 3-carboxypyridine. However, based on past market conditions and various reasons, it can be guessed a little.
2-mercaptoethanol has a wide range of uses and is used in biochemical research, pharmaceutical and chemical industries. Its price often varies depending on the quality, the distance of origin, and the amount of supply and demand. Generally speaking, the price per kilogram of ordinary quality may be between several hundred yuan. If it is high purity and suitable for fine scientific research, the price is higher, or several thousand yuan per kilogram. This is because the preparation of high-purity products is difficult, requires fine craftsmanship and strict quality control, so it is valuable.
As for 3-carboxypyridine, it is also an important organic synthesis raw material, which plays a key role in drug research and development, materials science, etc. Its market price is also affected by a variety of factors. Under normal circumstances, the price per kilogram ranges from hundreds to thousands of yuan. If the market demand is strong and the supply is relatively insufficient, the price may rise; conversely, if the supply is abundant and the demand is flat, the price may stabilize or even drop.
However, the market is unstable, and the price is uncertain. The above is only a rough guess. For real-time and accurate prices, please consult chemical raw material suppliers, trading platforms, or refer to recent market transaction data.