Linshang Chemical
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1,3-Dibromo-2-Chlorobenzene
Linshang Chemical
|
HS Code |
935715 |
| Chemical Formula | C6H3Br2Cl |
| Molar Mass | 270.35 g/mol |
| Appearance | Solid (usually white or off - white) |
| Melting Point | 35 - 37 °C |
| Boiling Point | 246 - 248 °C |
| Solubility In Water | Insoluble |
| Solubility In Organic Solvents | Soluble in common organic solvents like benzene, toluene, dichloromethane |
| Vapor Pressure | Low at room temperature |
| Stability | Stable under normal conditions, but may react with strong oxidizing agents |
As an accredited 1,3-Dibromo-2-Chlorobenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 100g of 1,3 - dibromo - 2 - chlorobenzene packaged in a sealed, labeled bottle. |
| Storage | 1,3 - dibromo - 2 - chlorobenzene should be stored in a cool, dry, well - ventilated area, away from heat sources and open flames to prevent ignition. Keep it in a tightly sealed container to avoid leakage and exposure to air or moisture. Store it separately from oxidizing agents, as they may react. Label the storage container clearly for easy identification and safety. |
| Shipping | 1,3 - dibromo - 2 - chlorobenzene is shipped in tightly - sealed, corrosion - resistant containers. Special care is taken to avoid exposure to heat, moisture, and incompatible substances during transportation to ensure safety. |
Competitive 1,3-Dibromo-2-Chlorobenzene prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365006308 or mail to info@alchemist-chem.com.
We will respond to you as soon as possible.
Tel: +8615365006308
Email: info@alchemist-chem.com
Where to Buy 1,3-Dibromo-2-Chlorobenzene in China?
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Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading 1,3-Dibromo-2-Chlorobenzene supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the physical properties of 1,3-dibromo-2-chlorobenzene?
Diborane diboride ($B_2H_6 $), commonly known as diborane, is an inorganic compound. Its physical properties are quite characteristic.
Looking at its physical state, under normal temperature and pressure, diborane is in the shape of a colorless gas, with a specific smell and a slightly sweet fragrance. However, it is very toxic and should not be ignored.
When it comes to the melting point, it is about -165.5 ° C. Under this low temperature, diborane condenses into a solid state. The boiling point is about -92.5 ° C. When the temperature rises, diborane is liquefied into a gaseous state.
Its density is heavier than that of air, which is more than twice the density of air. Therefore, if it leaks, the gas will settle in the lower part. Diborane is slightly soluble in water and will react slowly in water. At the same time, it is soluble in organic solvents such as carbon disulfide and carbon tetrachloride.
Diborane has a high vapor pressure, and it has a significant evaporation phenomenon at room temperature. This characteristic also makes it necessary to pay special attention to sealing and protection when storing and using. Due to its active chemical properties, it is very easy to spontaneously ignite in contact with air. When burning, the flame is bright, generating boron trioxide and water, and accompanied by a large amount of heat release. Therefore, when considering its physical properties, the potential danger caused by its active chemical properties cannot be ignored. Strict specifications must be followed for use and storage to ensure safety.
Looking at its physical state, under normal temperature and pressure, diborane is in the shape of a colorless gas, with a specific smell and a slightly sweet fragrance. However, it is very toxic and should not be ignored.
When it comes to the melting point, it is about -165.5 ° C. Under this low temperature, diborane condenses into a solid state. The boiling point is about -92.5 ° C. When the temperature rises, diborane is liquefied into a gaseous state.
Its density is heavier than that of air, which is more than twice the density of air. Therefore, if it leaks, the gas will settle in the lower part. Diborane is slightly soluble in water and will react slowly in water. At the same time, it is soluble in organic solvents such as carbon disulfide and carbon tetrachloride.
Diborane has a high vapor pressure, and it has a significant evaporation phenomenon at room temperature. This characteristic also makes it necessary to pay special attention to sealing and protection when storing and using. Due to its active chemical properties, it is very easy to spontaneously ignite in contact with air. When burning, the flame is bright, generating boron trioxide and water, and accompanied by a large amount of heat release. Therefore, when considering its physical properties, the potential danger caused by its active chemical properties cannot be ignored. Strict specifications must be followed for use and storage to ensure safety.
What are the chemical properties of 1,3-dibromo-2-chlorobenzene
The second, the chemical formula $Bi_2O_3 $, is an important chemical compound. Its properties are as follows:
1. ** Physical properties: The second is often colored powder, and the outer surface is uniform. The melting height is 825 ° C. This property allows it to remain stable in a high temperature environment. The density of the phase is high, 8.9 g/cm ³, which reflects the density of its molecules.
2. ** Chemical properties:
- ** Acid properties **: The second has the properties of low-grade oxides. It can not only generate acid reactions, but also react. Its acid reactions can generate water and water. For example, nitric acid is reversed, and the equation is: $Bi_2O_3 + 6HNO_3 = 2Bi (NO_3) _3 + 3H_2O $. In this reaction, the nitrate in the second reaction is combined to form nitric acid, and the water is released in the same reaction. And the reaction will generate an acid, for example: $Bi_2O_3 + 2NaOH = 2NaBiO_2 + H_2O $.
- ** oxidizability **: In some reactions, the second reaction can show a certain oxidizability. For example, in the lower case, it can oxidize some substances with original properties. However, its oxidizability is not low in terms of oxidation, and it needs to be recognized in the presence of specific reactions.
- ** Qualitative property **: At constant to certain high performance, the second product has good performance. However, if the temperature increases one step, it will exceed its melting time, and it will be melted into liquid from solid. If it is elevated and aerobic, it may produce a step-by-step oxidation reaction to generate higher oxidation oxides. Its chemical properties make it important in the field of chemistry, such as catalysis, ceramics, etc. It plays an indispensable role.
1. ** Physical properties: The second is often colored powder, and the outer surface is uniform. The melting height is 825 ° C. This property allows it to remain stable in a high temperature environment. The density of the phase is high, 8.9 g/cm ³, which reflects the density of its molecules.
2. ** Chemical properties:
- ** Acid properties **: The second has the properties of low-grade oxides. It can not only generate acid reactions, but also react. Its acid reactions can generate water and water. For example, nitric acid is reversed, and the equation is: $Bi_2O_3 + 6HNO_3 = 2Bi (NO_3) _3 + 3H_2O $. In this reaction, the nitrate in the second reaction is combined to form nitric acid, and the water is released in the same reaction. And the reaction will generate an acid, for example: $Bi_2O_3 + 2NaOH = 2NaBiO_2 + H_2O $.
- ** oxidizability **: In some reactions, the second reaction can show a certain oxidizability. For example, in the lower case, it can oxidize some substances with original properties. However, its oxidizability is not low in terms of oxidation, and it needs to be recognized in the presence of specific reactions.
- ** Qualitative property **: At constant to certain high performance, the second product has good performance. However, if the temperature increases one step, it will exceed its melting time, and it will be melted into liquid from solid. If it is elevated and aerobic, it may produce a step-by-step oxidation reaction to generate higher oxidation oxides. Its chemical properties make it important in the field of chemistry, such as catalysis, ceramics, etc. It plays an indispensable role.
What are the main uses of 1,3-dibromo-2-chlorobenzene?
In "Tiangong Kaiwu", dialum is alum, which is a crystal of potassium and aluminum sulfate. It is widely used in papermaking, food processing, water purification, medicine and other fields.
First, in the papermaking industry, dialum can precipitate pulp fibers. When making paper, the pulp is suspended in water and dialum is added, which hydrolyzes to form an aluminum hydroxide colloid, adsorbs the fibers, and helps the fibers to be evenly distributed and attached to the paper mold, so that the paper is formed more regularly, the texture is tight, and the quality of the paper is improved. Such as the ancient manufacture of painting and calligraphy paper, this method is often used to optimize the performance of the paper and meet the needs of painting and calligraphy creation.
Second, in food processing, dialum is often used as a leavening agent and coagulant. When frying fritters, mix with baking soda, release carbon dioxide when heated, and make the fritters expand and soften; make vermicelli and cold powder, which can enhance the gel strength and improve the taste. However, it should be noted that excessive intake is harmful to health, and modern food processing has strict restrictions on its usage.
Third, in terms of water purification, the hydrolysis of aluminium dioxide produces aluminum hydroxide colloid, which absorbs suspended impurities in the water. Impurities adhere and precipitate to achieve the purpose of purifying water quality. Such as ancient villages and towns, when the water source is turbid, dialum is often thrown into emergency response to make the water clear for daily use.
Fourth, in the field of medicine, dialum has the effects of astringency, hemostasis, dryness and detoxification. External use can treat skin diseases such as eczema and scabies, restrain skin exudate, and help wounds heal; internal use can stop vomiting blood, blood, etc. However, it is toxic, and internal use needs to be cautious.
And halogen alum, mainly containing calcium sulfate and magnesium sulfate, is mainly used in the printing and dyeing industry as a mordant to help dye adhere to fabrics; in leather tanning, it makes leather soft and durable; also used in the preparation of chemical raw materials, and is an important raw material for the production of various chemical products.
First, in the papermaking industry, dialum can precipitate pulp fibers. When making paper, the pulp is suspended in water and dialum is added, which hydrolyzes to form an aluminum hydroxide colloid, adsorbs the fibers, and helps the fibers to be evenly distributed and attached to the paper mold, so that the paper is formed more regularly, the texture is tight, and the quality of the paper is improved. Such as the ancient manufacture of painting and calligraphy paper, this method is often used to optimize the performance of the paper and meet the needs of painting and calligraphy creation.
Second, in food processing, dialum is often used as a leavening agent and coagulant. When frying fritters, mix with baking soda, release carbon dioxide when heated, and make the fritters expand and soften; make vermicelli and cold powder, which can enhance the gel strength and improve the taste. However, it should be noted that excessive intake is harmful to health, and modern food processing has strict restrictions on its usage.
Third, in terms of water purification, the hydrolysis of aluminium dioxide produces aluminum hydroxide colloid, which absorbs suspended impurities in the water. Impurities adhere and precipitate to achieve the purpose of purifying water quality. Such as ancient villages and towns, when the water source is turbid, dialum is often thrown into emergency response to make the water clear for daily use.
Fourth, in the field of medicine, dialum has the effects of astringency, hemostasis, dryness and detoxification. External use can treat skin diseases such as eczema and scabies, restrain skin exudate, and help wounds heal; internal use can stop vomiting blood, blood, etc. However, it is toxic, and internal use needs to be cautious.
And halogen alum, mainly containing calcium sulfate and magnesium sulfate, is mainly used in the printing and dyeing industry as a mordant to help dye adhere to fabrics; in leather tanning, it makes leather soft and durable; also used in the preparation of chemical raw materials, and is an important raw material for the production of various chemical products.
What are the synthesis methods of 1,3-dibromo-2-chlorobenzene?
To prepare 1,3-dibromo-2-chlorobenzene, there are many synthesis methods, and each has its advantages and disadvantages, which should be selected according to the specific situation.
First, benzene is used as the starting material and pre-halogenated. Under appropriate conditions, when benzene and bromine are catalyzed by catalysts such as iron filings, bromobenzene can be generated. The reaction is as follows:
\ (C_ {6} H_ {6} + Br_ {2}\ xrightarrow [] {Fe} C_ {6} H_ {5} Br + HBr\)
The obtained bromobenzene is then substituted with chlorine under specific conditions, such as light or specific catalysts, to obtain 1-bromo-2-chlorobenzene. The reaction formula is:
\ (C_ {6} H_ {5} Br + Cl_ {2}\ xrightarrow [] {light or catalyst} C_ {6} H_ {4} BrCl + HCl\)
Then, 1-bromo-2-chlorobenzene is further brominated with bromine under the action of a suitable catalyst to obtain 1,3-dibromo-2-chlorobenzene. The reaction is as follows:
\ (C_ {6} H_ {4} BrCl + Br_ {2}\ xrightarrow [] {catalyst} C_ {6} H_ {3} Br_ {2} Cl + HBr\)
Second, benzene can be nitrified first. The reaction is:
\ (C_ {6} H_ {6} + HNO_ {3}\ xrightarrow [] {H_ {2} SO_ {4}} C_ {6} H_ {5} {2} + H_ {2} O\)
nitrobenzene is reduced. If iron and hydrochloric acid are used as reducing agents, aniline can be obtained. Reaction formula:
\ (C_ {6} H_ {5} NO_ {2} + 6 [H]\ xrightarrow [] {Fe + HCl} C_ {6} H_ {5} NH_ {2} + 2H_ {2} O\)
Aniline is halogenated, which can first react with bromine water to generate 2,4,6-tribromoaniline. The reaction is:
\ (C_ {6} H_ {5} NH_ {2} + 3Br_ {2}\ xrightarrow [] {} C_ {6} H_ {2} Br_ {3} NH_ {2} + 3HBr\)
2,4,6 -tribromoaniline is reacted by diazotization with sodium nitrite and hydrochloric acid at low temperature to form diazonium salts. The reaction is as follows:
\ (C_ {6} H_ {2} Br_ {3} NH_ {2} + NaNO_ {2} + HCl\ xrightarrow [] {low temperature} C_ {6} H_ {2} Br_ {3} N_ {2} Cl + NaCl + H_ {2} O\)
The diazonium salt is reacted with the hydrochloric acid solution of cuprous chloride, and the diazonium group can be replaced with a chlorine atom through the Sandmeier reaction, and then 1,3-dibromo-2-chlorobenzene can be obtained.
These two are common preparation methods, but in actual synthesis, factors such as the availability of raw materials, the difficulty of reaction conditions, the yield, and the number of side reactions need to be considered, and comprehensive trade-offs should be made to choose the best method.
First, benzene is used as the starting material and pre-halogenated. Under appropriate conditions, when benzene and bromine are catalyzed by catalysts such as iron filings, bromobenzene can be generated. The reaction is as follows:
\ (C_ {6} H_ {6} + Br_ {2}\ xrightarrow [] {Fe} C_ {6} H_ {5} Br + HBr\)
The obtained bromobenzene is then substituted with chlorine under specific conditions, such as light or specific catalysts, to obtain 1-bromo-2-chlorobenzene. The reaction formula is:
\ (C_ {6} H_ {5} Br + Cl_ {2}\ xrightarrow [] {light or catalyst} C_ {6} H_ {4} BrCl + HCl\)
Then, 1-bromo-2-chlorobenzene is further brominated with bromine under the action of a suitable catalyst to obtain 1,3-dibromo-2-chlorobenzene. The reaction is as follows:
\ (C_ {6} H_ {4} BrCl + Br_ {2}\ xrightarrow [] {catalyst} C_ {6} H_ {3} Br_ {2} Cl + HBr\)
Second, benzene can be nitrified first. The reaction is:
\ (C_ {6} H_ {6} + HNO_ {3}\ xrightarrow [] {H_ {2} SO_ {4}} C_ {6} H_ {5} {2} + H_ {2} O\)
nitrobenzene is reduced. If iron and hydrochloric acid are used as reducing agents, aniline can be obtained. Reaction formula:
\ (C_ {6} H_ {5} NO_ {2} + 6 [H]\ xrightarrow [] {Fe + HCl} C_ {6} H_ {5} NH_ {2} + 2H_ {2} O\)
Aniline is halogenated, which can first react with bromine water to generate 2,4,6-tribromoaniline. The reaction is:
\ (C_ {6} H_ {5} NH_ {2} + 3Br_ {2}\ xrightarrow [] {} C_ {6} H_ {2} Br_ {3} NH_ {2} + 3HBr\)
2,4,6 -tribromoaniline is reacted by diazotization with sodium nitrite and hydrochloric acid at low temperature to form diazonium salts. The reaction is as follows:
\ (C_ {6} H_ {2} Br_ {3} NH_ {2} + NaNO_ {2} + HCl\ xrightarrow [] {low temperature} C_ {6} H_ {2} Br_ {3} N_ {2} Cl + NaCl + H_ {2} O\)
The diazonium salt is reacted with the hydrochloric acid solution of cuprous chloride, and the diazonium group can be replaced with a chlorine atom through the Sandmeier reaction, and then 1,3-dibromo-2-chlorobenzene can be obtained.
These two are common preparation methods, but in actual synthesis, factors such as the availability of raw materials, the difficulty of reaction conditions, the yield, and the number of side reactions need to be considered, and comprehensive trade-offs should be made to choose the best method.
What are the precautions for storing and transporting 1,3-dibromo-2-chlorobenzene?
First of all, if you hide it, you will have to pay more attention to it.
First of all, if you hide it, you will find it in the place where the wind and the wind are connected. It is easy to be born due to moisture. If you are in the place where the tide is, you will be able to save it for a long time and save its life. As the "Heavenly Works" said: "Where you hide a sharp weapon, you must be dry to prevent it from invading." It is the first thing to hide it in the environment of the wind and the dry.
Second, if it is hidden, it will be properly wrapped. Second, if there is a collision and friction on the way, it will be damaged. Therefore, it is necessary to wrap soft things, such as thick cloth and grass coverings, and place them firmly, so that they do not collide in the process. Those who used to use weapons in ancient times know the principle of "the package is dense, and the placement is proper, so that it can be protected".
Third, the management of people should not be ignored. The person who hides or is in charge of the second area must be loyal, reliable, and careful. Because of their sharp weapons, if they are handed over to those who do not use them, they may be lost and used. Just as the ancient saying: "When the weapon is in hand, it must be in the hands of those who use it."
Fourth, regular inspection is also an important matter. During the storage period, it is advisable to check the second warehouse. If there is any phenomenon such as dampness or raw water, it will be handled immediately. On the way, when you stop, you can also check whether the package is damaged and the weapons are damaged. In this way, you can ensure that the second warehouse is safe and sound during the storage process, and it can be used without any need.
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