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Bromoethane

Qiji Chemical

Bromoethane
Specifications

HS Code

374935

Name Bromoethane
Molecular Formula C2H5Br
Molar Mass 108.97 g/mol
Appearance Colorless liquid
Odor Sweet, chloroform - like odor
Density 1.46 g/cm³ (at 20 °C)
Melting Point -119 °C
Boiling Point 38.4 °C
Solubility In Water 0.914 g/100 mL (at 20 °C)
Vapor Pressure 53.3 kPa (at 25.8 °C)
Flash Point -23 °C
Refractive Index 1.4244 (at 20 °C)
Packing & Storage
Packing 100 mL of bromoethane in a sealed, dark - glass bottle with child - resistant cap.
Storage Bromoethane should be stored in a cool, well - ventilated area, away from heat sources and open flames due to its flammability. Keep it in a tightly - sealed container to prevent vapor leakage. Store it separately from oxidizing agents and reactive chemicals. Use storage facilities compliant with safety regulations to avoid potential fire, explosion, or harmful chemical reactions.
Shipping Bromoethane is shipped in tightly sealed, corrosion - resistant containers. It's transported under proper hazard - handling protocols, avoiding heat and ignition sources due to its flammable and toxic nature.
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Bromoethane Bromoethane
General Information
Historical Development
Bromoethane is also an organic chemical. At the beginning, chemists explored the subtleties and gradually understood its nature. In the past, science and technology were not yet developed, and research was difficult. However, scholars are determined, with unremitting heart, to find out the truth.
The first time bromoethane was obtained, the preparation method was still simple and crude, the amount of production was small, and the quality was not pure. After the passage of time, various sages made great efforts, and the method became more and more refined. With the rise of industry, there are many people who seek it, and the preparation technology is improving day by day.
From the past, it was difficult to obtain a small amount, to now it can be produced in large quantities for the needs of various industries. Medicine and chemical industry all depend on it. Viewing its history is actually a sign of the evolution of human wisdom and ingenuity, from ignorance to making good use of its nature and contributing a lot to the progress of the world.
Product Overview
In the field of organic synthesis, it is often used as an ethylation reagent. It is a colorless and transparent liquid with an ether-like aroma. It has a low boiling point, is volatile, and can be dissolved in organic solvents such as alcohols, ethers, and chloroform.
This compound has a wide range of uses. In the field of organic synthesis, it is often used as an ethylation reagent, and ethyl functional groups can be introduced to prepare a variety of organic compounds. In the pharmaceutical industry, it also has its own shadow and is an important raw material for the synthesis of drugs.
However, bromoethane is toxic to a certain extent, and it should be used with caution. When operating, it should be in a well-ventilated place and take protective measures to avoid harming the body. Bromoethane has unique properties and many uses. It occupies an important place in the chemical industry and related fields. Its rational use will surely contribute to the development of mankind.
Physical & Chemical Properties
Bromoethane is an organic compound. It is a colorless liquid with a special odor. Its boiling point is about 38.4 ° C, its density is greater than that of water, and it is difficult to dissolve in water, but it can be miscible in organic solvents such as alcohols, ethers, and chloroform.
In terms of its chemical properties, bromoethane is active and prone to substitution reactions. If it is co-heated with an aqueous solution of sodium hydroxide, the hydroxyl group replaces the bromine atom to form ethanol and sodium bromide. If it is co-heated with an alcoholic solution of sodium hydroxide, it will undergo a digestion reaction to remove hydrogen bromide and generate ethylene gas. This is due to the characteristics of bromine atoms in its molecules. Bromoethane is widely used in the field of organic synthesis and can be used as a raw material for the synthesis of many organic compounds. It is important for chemical research and industrial production.
Technical Specifications & Labeling
"Bromoethane Technical Specifications and Labeling (Commodity Parameters) "
This bromoethane product has its technical specifications and the first purity. When using a fine method to make its purity extremely high, impurities must not exceed the trace mark. When preparing, all conditions must be precisely controlled, and the temperature, pressure, and proportion of reactants must be appropriate to ensure that the product is pure and free of impurities.
As for the label, the name should be clearly stated "Bromoethane", and the product parameters should be listed in detail. Key data such as molecular weight, density, boiling point, etc. are clearly marked so that users can see at a glance. And on the package, safety warnings are also indispensable to inform its characteristics and latent risks, so that the essence of bromoethane technical specifications and labels can be obtained, so that users can properly handle it to make the best use of it and ensure safety.
Preparation Method
"The Method of Bromoethane"
If you want bromoethane, you can bromide it with ethanol. The reverse steps are as follows: first take the amount of ethanol, put it in the reverse container, and slowly add sulfuric acid. Sulfuric acid acts as a catalyst here. Then, bromide is introduced, and the two are then biochemically reversed. The reverse process needs to be controlled, and it is usually maintained at the appropriate level to prevent the growth of side reactions.
The reverse system is that the base of ethanol is attacked by the bromine in the bromide, and the base is replaced by the bromine atom to generate bromoethane. After the reverse process is completed, bromoethane can be extracted by liquid separation, steaming, etc., in order to obtain high-grade products. This is a commonly used method for reducing bromoethane, which can effectively extract the required bromoethane.
Chemical Reactions & Modifications
The reaction and transformation of bromoethane are quite important to chemists.
The preparation of bromoethane often involves the reaction of ethanol and hydrogen bromide. In this reaction, the hydroxyl group of ethanol is replaced by a bromine atom to form bromoethane and water. The corresponding formula is: $C_ {2} H_ {5} OH + HBr\ longrightarrow C_ {2} H_ {5} Br + H_ {2} O $.
As for its change in properties, bromoethane can be hydrolyzed. In the alkaline environment, bromine is replaced by a hydroxyl group to generate ethanol. This is one example of chemical transformation. It can also be eliminated and ethylene obtained, all of which are important to change and change. Chemists study it, Ji Ming its principles, for the chemical industry, widely use it, improve its methods, and promote the progress of chemistry.
Synonyms & Product Names
Bromoethane is also an organic compound. Its alias is ethyl bromide, which is a genus of halogenated hydrocarbons. This substance is quite useful in industry and scientific research.
Industrial preparation, often obtained by the reaction of ethanol and hydrogen bromide. Its properties are colorless liquids with a special odor and a higher density than water.
Bromoethane has a wide range of uses. In organic synthesis, it can be an important intermediate and participates in many chemical reactions, such as nucleophilic substitution reactions. Ethyl groups can be introduced to prepare various organic compounds. In the field of medicine, it also has its own uses and can be used as raw materials for anesthetics.
Looking at their names and aliases, "bromoethane" and "ethyl bromide", although they have different names, refer to the same thing. This is the law of naming chemical substances, or according to the structure, or according to the functional group, although the names are different, they are all familiar and commonly used substances by our researchers.
Safety & Operational Standards
"Bromoethane Product Safety and Operation Specifications"
Bromoethane is one of the chemical products. It is active and has unique chemical properties, and is used in both industrial and scientific research fields. However, its use and storage should follow strict safety and operation standards to ensure personal and environmental safety.
Bromoethane is toxic and can cause damage to the human body by inhalation, ingestion or skin absorption. In mild cases, headache, dizziness, nausea, vomiting, and in severe cases, it can cause coma or even endanger life. Therefore, when operating, it is necessary to wear protective clothing, protective gloves and goggles, and work in a well-ventilated place to prevent vapor inhalation.
Store bromoethane in a cool and ventilated warehouse, away from fire and heat sources. The storage temperature should not exceed 30 ° C. It should be stored separately from oxidants, acids, and alkalis, and should not be mixed. When handling, it should be lightly loaded and unloaded to prevent damage to packaging and containers.
If a leak occurs accidentally, quickly evacuate the personnel from the leaked contaminated area to a safe area and isolate them to strictly restrict access. Emergency responders wear self-contained positive pressure breathing apparatus and anti-toxic clothing. Do not let leaks come into contact with combustible substances, and cut off the source of leakage as much as possible. Small leaks should be adsorbed or absorbed with sand or other non-combustible materials; large leaks should be contained by building embankments or digging pits, covered with foam to reduce vapor disasters, transferred to tankers or special collectors with explosion-proof pumps, recycled or transported to waste disposal sites.
All operations involving bromoethane should be handled with caution, and safety and operating standards should be strictly adhered to in order to avoid disasters and promote the smooth production of scientific research.
Application Area
Bromoethane is an organic compound. Its application field is quite wide. In the field of medicine, it is often used as a raw material for the synthesis of drugs, the preparation of adjuvants, and can treat various diseases. In the chemical industry, it is an important intermediate, participating in the synthesis of a variety of chemicals to make the material performance better. In agriculture, it can also be used to make pesticides to protect crops and drive away pests and diseases. And in the organic synthesis reaction, ethyl can be introduced, which is the cornerstone of the construction of complex organic structures. It is bromoethane that plays a key role in many fields and has far-reaching impact. It is related to the needs of people's livelihood and promotes the prosperity of the industry.
Research & Development
The product of bromoethane is related to research and development, which is very important. Bromoethane is also a common raw material for organic synthesis. In the past, the preparation method may not be good, the yield is not high and there are many impurities.
We have studied for months to improve the process. Using ethanol and hydrobromic acid as the starting materials, we found a suitable temperature and pressure environment, and selected a high-efficiency catalyst to make the reaction smooth. After this optimization, the yield of bromoethane has increased significantly, and the purity is also good.
This achievement has potential in industrial production and scientific research. In the future, it should be expanded and applied to explore new paths in the synthesis of medicine and pesticides, with the hope of promoting the progress of related industries and enabling bromoethane products to bloom more brightly in the process of research and development.
Toxicity Research
Research on the toxicity of bromoethane
Residual elements are good for studying chemical products. Recently, the toxicity of bromoethane has been quite deep. Bromoethane has a clear color and a cold taste, and is often used as a raw material for organic synthesis.
At first, looking at its physical properties, the boiling point is not high, and it is easy to evaporate in the air. Take animals as a test, and place them in a closed room containing bromoethane. Not long after, the animals gradually became tired, and their breathing was also rapid. On closer inspection, it is known that bromoethane enters the body, which can easily disturb the nervous system. It can block the transmission of neurotransmitters, cause nerve signal disorder, and make the animals in the test imbalanced.
It is also tested in plants, sprinkling bromoethane on the soil. For a few days, the leaves of the plant gradually wilted and the growth was sluggish. The reason is that bromoethane damages the root system of the plant and hinders its uptake of water and nutrients.
In summary, bromoethane is toxic and harmful to both ecology and humans. Those who study this product should be cautious to prevent it from escaping into disaster.
Future Prospects
Guanfu bromoethane has a wide range of uses in today's world. In the field of chemical industry, it is an important raw material for the production of various organic compounds. It also has extraordinary functions in the genus of medicine and pesticides.
Looking to the future, technology is new, and the development of bromoethane will be vigorous. With advanced research and development, it may be able to expand its new uses, and it will emerge in materials science and other fields. The production method will also become more green and efficient, reducing consumption and reducing emissions to meet the needs of environmental protection.
Although the road ahead may be difficult, adhering to the heart of exploration and unremitting research, the future of bromoethane will surely shine brightly, contributing to the well-being of mankind and opening up new frontiers.
Frequently Asked Questions
What are the physical properties of Bromoethane?
Bromoethane has its own unique physical properties. Looking at its color, it is often colorless, just like water, pure and free of variegated stains. Smell its gas, it has a special smell, although not pungent, it can be recognized by people. Its body is liquid, light and flowing, just like a smart firefly.
The density of bromoethane is higher than that of water, and when it is mixed with water, it can be seen that it sinks to the bottom of the water, like a pearl falling into the abyss. And its boiling point is quite moderate, about 38.4 ° C. At this temperature, bromoethane turns from liquid to gas, like light smoke rising.
Furthermore, the solubility of bromoethane in water is not good, and the two are like incompatible strangers, difficult to blend. However, it is soluble in many organic solvents, such as ethanol, ether, etc., just like a wanderer returning home, it can be integrated with organic solvents.
The volatility of bromoethane cannot be ignored. In a room temperature environment, it is volatile in the air, like morning dew disappearing under the sun. This property also makes it necessary to pay more attention when storing and using it.
All these are the physical properties of bromoethane. In the field of chemistry, this is the cornerstone for exploring its essence and use.
What are the chemical properties of Bromoethane?
Ethyl bromide is also an organic compound, which is active and has a wide range of uses in the field of organic synthesis. Its chemical properties are as follows:
First, hydrolysis. Ethyl bromide can undergo hydrolysis in contact with water under the catalysis of sodium hydroxide. This is a process in which hydroxyl groups replace bromine atoms. The reaction formula is: $CH_ {3} CH_ {2} Br + NaOH\ xrightarrow [] {H_ {2} O} CH_ {3} CH_ {2} OH + NaBr $. During hydrolysis, the carbon-bromine bond in ethyl bromide breaks, and hydroxide ions are connected to carbon atoms, resulting in ethanol and sodium bromide. This reaction is an important way for the conversion of halogenated hydrocarbons to alcohols.
Second, the ability to eliminate. Ethyl bromide is co-heated with an alcohol solution of a strong base, and a digestion reaction can occur. In this reaction, ethyl bromide dehydrogenates to form ethylene. The reaction formula is: $CH_ {3} CH_ {2} Br + NaOH\ xrightarrow [] {alcohol} CH_ {2} = CH_ {2}\ uparrow + NaBr + H_ {2} O $. During the reaction, the bromine atom on the adjacent carbon atom binds to the hydrogen atom to form hydrogen bromide and removes, and at the same time forms a carbon-carbon double bond. This is a common method for preparing olefins.
Third, the ability to react with metals. Bromoethane can react with some metals, such as magnesium, in an anhydrous ether environment to form Grignard reagents. The reaction formula is: $CH_ {3} CH_ {2} Br + Mg\ xrightarrow [] {anhydrous ether} CH_ {3} CH_ {2} MgBr $. Grignard reagents are extremely important in organic synthesis. They can react with a variety of carbonyl-containing compounds to grow carbon chains and build complex organic molecular structures.
In summary, bromoethane plays a significant role in organic synthesis chemistry due to its unique chemical properties and is an important raw material for the preparation of various organic compounds.
What are the applications of bromoethane in organic synthesis?
Ethyl bromide has a wide range of uses in organic synthesis. It can be used to make ethers, such as alcohol and ethyl bromide, in an alkaline environment, through the reaction of nucleophilic substitution, the corresponding ethers can be prepared. This reaction is like a skilled craftsman using exquisite skills to splice different components into useful things.
can also be used to make amines. Ethyl bromide and ammonia are replaced by nucleophilic substitution and gradually react to obtain amines. And through this reaction regulation conditions, different products such as primary amines, secondary amines, and tertiary amines can be obtained, just like clever blending, and a variety of finished products can be obtained.
In the preparation of Grignard reagents, bromine and magnesium can be prepared in an anhydrous ether environment. Grignard reagents can be prepared. This Grignard reagent is a powerful tool for organic synthesis. It can react with a variety of carbonyl-containing compounds to increase carbon chains and build complex structures, just like building a high-rise building.
It can also be used to make carboxylic acids. Bromoethane is cyanylated to obtain nitriles, and carboxylic acids can be obtained after hydrolysis of nitriles. This process is like a layer-by-layer metamorphosis, from the initial state to new substances.
In addition, bromoethane can produce a variety of organic compounds, which are indispensable in the fields of medicine, pesticides, fragrances, etc. It is a key raw material for organic synthesis, such as the cornerstone of building an exquisite organic world, supporting the vigorous development of many industries.
What are the methods for preparing Bromoethane?
There are two ways to prepare bromoethane. First, ethanol and hydrobromic acid are used as raw materials and obtained by substitution reaction. The text says: "Take an appropriate amount of ethanol, put it in a flask, add hydrobromic acid dropwise, supplemented by sulfuric acid catalysis, and heat. During this time, the hydroxyl group of the ethanol is replaced by a bromine atom, and bromoethane is produced. The reaction formula is: $C_ {2} H_ {5} OH + HBr\ stackrel {H_ {2} SO_ {4}} {\ longrightarrow} C_ {2} H_ {5} Br + H_ {2} O $. During operation, the concentration of sulfuric acid should not be too high to prevent ethanol from dehydration and carbonation; the temperature should also be controlled to avoid side reactions."
Second, it is prepared by adding ethylene and hydrogen bromide. "The ethylene gas is slowly passed into the container containing hydrogen bromide. Under appropriate temperature and pressure, the double bond of ethylene is broken, and it is added to hydrogen bromide to form bromoethane. The reaction formula is: $CH_ {2} = CH_ {2} + HBr\ longrightarrow CH_ {3} CH_ {2} Br $. This way is simple, the product is pure, but the preparation of ethylene is slightly more complex." Preparation of bromoethane, both have advantages and disadvantages, according to the actual needs, choose the good one.
What are the effects of Bromoethane on the environment and people?
Bromoethane is also an organic halogenated hydrocarbon. Its impact on the environment and the human body cannot be ignored.
In the environment, bromoethane has a certain volatility, escapes in the atmosphere, or participates in photochemical reactions, disturbing the balance of atmospheric chemistry. And it is difficult to degrade, remaining in soil and water bodies, or causing soil and water pollution, involving plants and aquatic organisms, breaking the ecological balance. Such as entering water bodies, or harming the survival and reproduction of aquatic organisms such as fish and shrimp, causing population reduction and ecological chain disruption.
As for human beings, bromoethane is neurotoxic. It enters the body through respiration, skin contact, and accidental ingestion, harming the nervous system. Small exposure may cause headache, dizziness, fatigue, nausea, vomiting, etc., similar to the feeling of drunkenness. If exposed for a long time and in large doses, it can cause central nervous system depression, even coma, respiratory failure, and endanger life. And it may damage liver and kidney functions and interfere with the normal metabolism of the human body. Long-term exposure to bromoethane-containing environments also increases the risk of cancer. Because it may be a carcinogen, it damages the genetic material of human body cells and causes abnormal cell proliferation and carcinogenesis.
Therefore, in the production, use, and storage of bromoethane, we should be careful and take proper protection and treatment methods to reduce its harm to the environment and human body, and maintain ecological safety and human health.