Linshang Chemical
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4-Bromochlorobenzene
Linshang Chemical
|
HS Code |
126775 |
| Chemical Formula | C6H4BrCl |
| Molar Mass | 191.45 g/mol |
| Appearance | Colorless to light - yellow liquid |
| Boiling Point | 219 - 221 °C |
| Melting Point | −31 °C |
| Density | 1.647 g/cm³ at 20 °C |
| Solubility | Insoluble in water, soluble in organic solvents like ethanol, ether |
| Vapor Pressure | Low vapor pressure |
| Odor | Aromatic odor |
| Flash Point | 93 °C |
| Stability | Stable under normal conditions |
As an accredited 4-Bromochlorobenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 100g of 4 - bromochlorobenzene packaged in a sealed, corrosion - resistant bottle. |
| Storage | 4 - Bromochlorobenzene should be stored in a cool, dry, well - ventilated area, away from sources of heat and ignition. Keep it in a tightly - sealed container to prevent leakage. Store it separately from oxidizing agents and reactive chemicals. This is to avoid potential chemical reactions that could lead to hazards like fires or the release of harmful substances. |
| Shipping | 4 - bromochlorobenzene is shipped in tightly - sealed containers, often made of corrosion - resistant materials. Shipment follows strict hazardous chemical regulations, ensuring proper handling to prevent spills and exposure during transit. |
Competitive 4-Bromochlorobenzene 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 4-Bromochlorobenzene in China?
As a trusted 4-Bromochlorobenzene manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
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 4-Bromochlorobenzene 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 chemical properties of 4-bromochlorobenzene?
4-% cyanoic acid is a toxic substance, and its properties are very special. It has strong resistance, and it is easy to dissolve under normal conditions.
In terms of chemical activity, cyanoic acid is acidic, and it can be used for health neutralization and reaction. In case of gold, such as gold, gas, and gas, it can be synthesized into cyanide, which is often rapid and intense.
In addition, the original nature of cyanoic acid is low, and under specific conditions, it can reduce the original temperature of gold to low temperature, and itself is oxidized. In the field of synthesis, it is also important. However, due to its toxicity, the operation needs to be cautious.
Qualitatively, cyanoic acid is not very deterministic. In case of light, exposure to light, or some catalysis, it is easy to decompose cyanoic acid. This decomposition is negative or causes heavy effects such as explosions.
And cyanoic acid is easily soluble in water. The aqueous solution of cyanoic acid is weak in acidity, but it is also toxic. Its toxicology lies in that it can quickly inhibit the respiratory enzymes of organisms, block the respiration of cells, and cause rapid death due to lack of oxygen. Therefore, the anti-chemical properties, or toxic hazards, 4-% cyanoic acid must be carefully treated, and the operation and storage standards must be followed to prevent accidental production.
In terms of chemical activity, cyanoic acid is acidic, and it can be used for health neutralization and reaction. In case of gold, such as gold, gas, and gas, it can be synthesized into cyanide, which is often rapid and intense.
In addition, the original nature of cyanoic acid is low, and under specific conditions, it can reduce the original temperature of gold to low temperature, and itself is oxidized. In the field of synthesis, it is also important. However, due to its toxicity, the operation needs to be cautious.
Qualitatively, cyanoic acid is not very deterministic. In case of light, exposure to light, or some catalysis, it is easy to decompose cyanoic acid. This decomposition is negative or causes heavy effects such as explosions.
And cyanoic acid is easily soluble in water. The aqueous solution of cyanoic acid is weak in acidity, but it is also toxic. Its toxicology lies in that it can quickly inhibit the respiratory enzymes of organisms, block the respiration of cells, and cause rapid death due to lack of oxygen. Therefore, the anti-chemical properties, or toxic hazards, 4-% cyanoic acid must be carefully treated, and the operation and storage standards must be followed to prevent accidental production.
What are the physical properties of 4-bromochlorobenzene?
4-% cyanofluorohydrazone is a new type of diarylpyrazole insecticide. It has the following physical properties:
- ** Appearance **: The original drug is beige to brown amorphous solid and has no special odor. This form is conducive to mixing with various preparations in practical applications, and has no special odor to reduce the adverse stimulation to the use environment and the user's sense of smell.
- ** Melting point **: 198.5 ° C, relatively high melting point indicates that it has good chemical stability at room temperature, and is not easy to change due to environmental temperature fluctuations, ensuring product storage stability.
- ** Vapor pressure **: 6.3 × 10 -9 Pa at 25 ° C. Extremely low vapor pressure means its volatility is weak. During storage and use, the active ingredient is not easy to evaporate and dissipate, which can better maintain the efficacy and reduce the pollution to the surrounding environment.
- ** Solubility **: The solubility in water is 1.08mg/L (25 ° C), which is slightly soluble in water. In organic solvents, such as acetone 224g/L, acetonitrile 142g/L, dichloromethane 539g/L, ethyl acetate 126g/L, methanol 2.9g/L, toluene 28.6g/L. Differences in solubility in different solvents provide a variety of options for the development of their formulations. Appropriate solvents can be selected according to actual needs to prepare different dosage forms, such as emulsifiable concentrate, suspending agents, etc., to meet different application scenarios.
- ** Partition coefficient **: n-octanol/water partition coefficient Kow logP = 4.06 (25 ° C), reflecting its distribution ability in the oil-water two phases, which is of great significance for understanding its migration in the environment, enrichment in organisms and drug efficacy. It shows that it has a certain affinity in a fat-soluble environment, which is conducive to the use of insecticides through biofilms.
- ** Appearance **: The original drug is beige to brown amorphous solid and has no special odor. This form is conducive to mixing with various preparations in practical applications, and has no special odor to reduce the adverse stimulation to the use environment and the user's sense of smell.
- ** Melting point **: 198.5 ° C, relatively high melting point indicates that it has good chemical stability at room temperature, and is not easy to change due to environmental temperature fluctuations, ensuring product storage stability.
- ** Vapor pressure **: 6.3 × 10 -9 Pa at 25 ° C. Extremely low vapor pressure means its volatility is weak. During storage and use, the active ingredient is not easy to evaporate and dissipate, which can better maintain the efficacy and reduce the pollution to the surrounding environment.
- ** Solubility **: The solubility in water is 1.08mg/L (25 ° C), which is slightly soluble in water. In organic solvents, such as acetone 224g/L, acetonitrile 142g/L, dichloromethane 539g/L, ethyl acetate 126g/L, methanol 2.9g/L, toluene 28.6g/L. Differences in solubility in different solvents provide a variety of options for the development of their formulations. Appropriate solvents can be selected according to actual needs to prepare different dosage forms, such as emulsifiable concentrate, suspending agents, etc., to meet different application scenarios.
- ** Partition coefficient **: n-octanol/water partition coefficient Kow logP = 4.06 (25 ° C), reflecting its distribution ability in the oil-water two phases, which is of great significance for understanding its migration in the environment, enrichment in organisms and drug efficacy. It shows that it has a certain affinity in a fat-soluble environment, which is conducive to the use of insecticides through biofilms.
What are the common uses of 4-bromochlorobenzene?
The common use of 4-% pure sand is for metallurgical, thermal, and glass applications.
In the case of metallurgical processing, 4-% pure sand can be used as a melting aid. Because it can effectively reduce the melting of rough stone, it makes the metallurgical process easier and improves the efficiency of metal extraction. For example, the addition of 4-% pure sand can promote the melting of rough stone more efficiently, and the separation of rough stone can be produced.
In the field, 4-% pure sand also has a wonderful effect. It has a certain disinfection effect on bacteria and can be used for external treatment. The 4-% sand solution in a high proportion can clean the mouth, inhibit the growth of bacteria, prevent the infection of the mouth, and help the mouth to close. In ancient times, this product was also often used to help treat certain skin diseases and relieve the pain of patients.
Furthermore, in the process of making glass, 4-% sand is indispensable. It can improve the composition of the glass and improve the performance of the glass. Adding 4-% sand can reduce the melting degree of the glass, save energy, and make the glass more transparent and qualitative. The glass, which is used for windows, utensils, and optical appliances, is better because of the effect of 4-% sand.
In addition, in some chemical synthesis reactions, 4-% sand can also be used as a catalyst or reaction material, which can be used as a reaction material to promote the synthesis of chemical products and play an important role in the production process. Where this is the case, 4-% sand is often used.
In the case of metallurgical processing, 4-% pure sand can be used as a melting aid. Because it can effectively reduce the melting of rough stone, it makes the metallurgical process easier and improves the efficiency of metal extraction. For example, the addition of 4-% pure sand can promote the melting of rough stone more efficiently, and the separation of rough stone can be produced.
In the field, 4-% pure sand also has a wonderful effect. It has a certain disinfection effect on bacteria and can be used for external treatment. The 4-% sand solution in a high proportion can clean the mouth, inhibit the growth of bacteria, prevent the infection of the mouth, and help the mouth to close. In ancient times, this product was also often used to help treat certain skin diseases and relieve the pain of patients.
Furthermore, in the process of making glass, 4-% sand is indispensable. It can improve the composition of the glass and improve the performance of the glass. Adding 4-% sand can reduce the melting degree of the glass, save energy, and make the glass more transparent and qualitative. The glass, which is used for windows, utensils, and optical appliances, is better because of the effect of 4-% sand.
In addition, in some chemical synthesis reactions, 4-% sand can also be used as a catalyst or reaction material, which can be used as a reaction material to promote the synthesis of chemical products and play an important role in the production process. Where this is the case, 4-% sand is often used.
What are the synthesis methods of 4-bromochlorobenzene?
4-Cyanopyridine is an important intermediate in organic synthesis and is widely used in the fields of medicine, pesticides, dyes, etc. There are many synthesis methods, each with its own advantages and disadvantages. In practical applications, it needs to be carefully selected according to specific needs and conditions. The following are common synthesis methods:
1. ** Cyanidation of pyridine chloride **: Using pyridine as the starting material, 2-chloropyridine or 3-chloropyridine is first chlorinated to form 2-chloropyridine, and then cyanide with cyanide reagents, such as potassium cyanide, sodium cyanide, etc., under the action of suitable solvents and catalysts, 4-cyanopyridine is prepared. The raw materials of this method are easy to obtain, and the reaction steps are relatively clear. However, the selectivity of the chlorination process is not good, and it is easy to produce a variety of chloropyridine isomers, and the separation and purification work is complicated. The reaction is roughly as follows: pyridine reacts with chlorine gas under specific conditions to form chloropyridine, and then chloropyridine and cyanide reagents are heated in a polar solvent in the presence of a phase transfer catalyst to achieve the synthesis of 4-cyanopyridine.
2. ** Ammonia oxidation method **: 4-methylpyridine is selected as the substrate, air or oxygen is used as the oxidant, and ammonia provides a nitrogen source. Under the action of specific catalysts, such as complex oxide catalysts containing vanadium, antimony and other elements, 4-cyanopyridine is directly generated by ammonia oxidation reaction. This method has high atomic utilization rate, simple steps, and conforms to the concept of green chemistry. However, it requires strict reaction conditions, and catalyst preparation and performance regulation are crucial. Generally speaking, the reaction needs to be carried out in a fluidized bed or fixed bed reactor under high temperature (about 300-500 ° C) and specific pressure.
3. ** Palladium catalytic coupling method **: The use of halogenated pyridine (such as 4-bromopyridine or 4-iodopyridine) with cyanyl sources (such as zinc cyanide, copper cyanide, etc.), under the action of palladium catalysts (such as tetra (triphenylphosphine) palladium, etc.) and ligands (such as tri-tert-butylphosphine, etc.) under the action of coupling reaction, the synthesis of 4-cyanopyridine is achieved. This method has relatively mild reaction conditions and high selectivity, which can effectively construct cyanofunctional groups. However, palladium catalysts are expensive, increase production costs, and some cyanyl sources are highly toxic. When used, careful operation and proper disposal of waste are required.
4. ** Microbial conversion method **: With the help of certain microorganisms, such as specific strains, the specific precursor substance is converted into 4-cyanopyridine by the catalytic action of the enzyme system in the body. This method has the advantages of mild reaction conditions, environmental friendliness, and high selectivity. However, the microbial culture and transformation process is difficult to control, the conversion efficiency needs to be improved, and large-scale industrial application faces certain challenges.
1. ** Cyanidation of pyridine chloride **: Using pyridine as the starting material, 2-chloropyridine or 3-chloropyridine is first chlorinated to form 2-chloropyridine, and then cyanide with cyanide reagents, such as potassium cyanide, sodium cyanide, etc., under the action of suitable solvents and catalysts, 4-cyanopyridine is prepared. The raw materials of this method are easy to obtain, and the reaction steps are relatively clear. However, the selectivity of the chlorination process is not good, and it is easy to produce a variety of chloropyridine isomers, and the separation and purification work is complicated. The reaction is roughly as follows: pyridine reacts with chlorine gas under specific conditions to form chloropyridine, and then chloropyridine and cyanide reagents are heated in a polar solvent in the presence of a phase transfer catalyst to achieve the synthesis of 4-cyanopyridine.
2. ** Ammonia oxidation method **: 4-methylpyridine is selected as the substrate, air or oxygen is used as the oxidant, and ammonia provides a nitrogen source. Under the action of specific catalysts, such as complex oxide catalysts containing vanadium, antimony and other elements, 4-cyanopyridine is directly generated by ammonia oxidation reaction. This method has high atomic utilization rate, simple steps, and conforms to the concept of green chemistry. However, it requires strict reaction conditions, and catalyst preparation and performance regulation are crucial. Generally speaking, the reaction needs to be carried out in a fluidized bed or fixed bed reactor under high temperature (about 300-500 ° C) and specific pressure.
3. ** Palladium catalytic coupling method **: The use of halogenated pyridine (such as 4-bromopyridine or 4-iodopyridine) with cyanyl sources (such as zinc cyanide, copper cyanide, etc.), under the action of palladium catalysts (such as tetra (triphenylphosphine) palladium, etc.) and ligands (such as tri-tert-butylphosphine, etc.) under the action of coupling reaction, the synthesis of 4-cyanopyridine is achieved. This method has relatively mild reaction conditions and high selectivity, which can effectively construct cyanofunctional groups. However, palladium catalysts are expensive, increase production costs, and some cyanyl sources are highly toxic. When used, careful operation and proper disposal of waste are required.
4. ** Microbial conversion method **: With the help of certain microorganisms, such as specific strains, the specific precursor substance is converted into 4-cyanopyridine by the catalytic action of the enzyme system in the body. This method has the advantages of mild reaction conditions, environmental friendliness, and high selectivity. However, the microbial culture and transformation process is difficult to control, the conversion efficiency needs to be improved, and large-scale industrial application faces certain challenges.
What are the precautions for the storage and transportation of 4-bromochlorobenzene?
4 - In the process of hiding and cleaning, pay attention to all kinds of things, so as to ensure the safety of its products.
The first important environment is hidden. It is appropriate to be dry and clear, because the tide is easy to cause decay. If the air temperature is high, the water vapor is attached to the air, and then the bacteria will breed, which will taste like the ground. Therefore, hiding in a cool place can prolong its storage period.
Furthermore, the degree of loss should also be used. The high temperature will promote its leaven and leaven; the low temperature will cause damage or damage. Generally speaking, it is often left and right, with a little control, it is appropriate.
And the package should not be ignored. Wrapped in dense and moisture-proof materials, it can prevent the intrusion of the outside world, and can prevent pollution and odor pollution, so as to maintain the correct taste.
When it is difficult to avoid shock and collision, it is easy to break, and it is sold outside the shadow.
, also pay attention to the way of stacking, do not measure it, and keep it intact.
The environment is equally important. If the road is difficult, you need to pay special attention to control and control. To prevent high temperature in summer, you can reduce the cost; to prevent low pollution in winter, or take measures to protect it.
And the smell of tools, whether the taste is contaminated, it is the original taste. All these things are hidden and hidden in the warehouse, and you can't be careless.
The first important environment is hidden. It is appropriate to be dry and clear, because the tide is easy to cause decay. If the air temperature is high, the water vapor is attached to the air, and then the bacteria will breed, which will taste like the ground. Therefore, hiding in a cool place can prolong its storage period.
Furthermore, the degree of loss should also be used. The high temperature will promote its leaven and leaven; the low temperature will cause damage or damage. Generally speaking, it is often left and right, with a little control, it is appropriate.
And the package should not be ignored. Wrapped in dense and moisture-proof materials, it can prevent the intrusion of the outside world, and can prevent pollution and odor pollution, so as to maintain the correct taste.
When it is difficult to avoid shock and collision, it is easy to break, and it is sold outside the shadow.
, also pay attention to the way of stacking, do not measure it, and keep it intact.
The environment is equally important. If the road is difficult, you need to pay special attention to control and control. To prevent high temperature in summer, you can reduce the cost; to prevent low pollution in winter, or take measures to protect it.
And the smell of tools, whether the taste is contaminated, it is the original taste. All these things are hidden and hidden in the warehouse, and you can't be careless.
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