Qiji Chemical
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1,5-Dibromopentane

Qiji Chemical

1,5-Dibromopentane
Specifications

HS Code

697948

Chemical Formula C5H10Br2
Molar Mass 229.94 g/mol
Appearance Colorless to light yellow liquid
Boiling Point 221 - 222 °C
Melting Point -55 °C
Density 1.67 g/cm³
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in many organic solvents like ether, chloroform
Flash Point 107 °C
Odor Characteristic, pungent odor
Stability Stable under normal conditions
Packing & Storage
Packing 1,5 - Dibromopentane packaged in 500 - mL glass bottles, quantity: 10 bottles per case.
Storage 1,5 - Dibromopentane should be stored in a cool, dry, well - ventilated area away from heat sources and open flames. It should be kept in a tightly sealed container to prevent vapor leakage. Store it separately from oxidizing agents, strong bases, and reactive metals as it can react with them. Ensure the storage area has proper spill - containment measures.
Shipping 1,5 - Dibromopentane is shipped in tightly - sealed, corrosion - resistant containers. It's transported under proper temperature control, adhering to strict regulations for hazardous chemicals to ensure safe transit.
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1,5-Dibromopentane 1,5-Dibromopentane
General Information
Historical Development
1,5-Dibromopentane is also an organic compound. At the beginning, chemists worked hard in the laboratory to obtain this product. At the beginning, the method of preparation was explored, like a lost boat, after twists and turns. However, everyone worked tirelessly. After repeated experiments and adjustment steps, they gradually got the key.
In the past, the technology was not refined, the preparation was difficult, and the yield was quite low. However, with the evolution of science and technology, new techniques emerged one after another, and the synthesis method became better. From the initial complicated method to the later concise and efficient road, the preparation process of this compound is just like the long river of history, rolling forward. At present, 1,5-dibromopentane is widely used in chemical, pharmaceutical and other fields, which is the work of chemists for generations.
Product Overview
1,5-Dibromopentane is also an organic compound. Its shape is colorless, transparent, and has a special smell. The boiling point of this substance is high and stable at room temperature.
Its preparation method is often based on the reaction of pentanol and hydrobromic acid. After reaction, this product can be obtained. During the reaction, the temperature and speed must be controlled to achieve good effect.
1,5-Dibromopentane has a wide range of uses and is a key raw material in the field of organic synthesis. It can be used to make various drugs, fragrances and polymer materials. With its lively chemistry, it can react with various reagents to form new compounds. It plays an important role in the chemical industry and is really indispensable.
Physical & Chemical Properties
1,5-Dibromopentane is also an organic compound. Its color is clear and the taste is slight, and it often exists in a liquid state. Its boiling point is quite specific, about a certain degree, which is one end of the physical nature. When it comes to chemistry, the bromine atom in its molecule is active and easy to react with other substances. When encountering nucleophiles, the bromine atom can be substituted to produce different compounds. Its density is also a characteristic, which can be measured by specific methods in experiments. This compound has a wide range of uses in the field of organic synthesis and can be used as an intermediate to help form various complex organic molecules. With its physical and chemical characteristics, it is important for chemical research and industrial production.
Technical Specifications & Labeling
1,5-Dibromopentane is a commonly used raw material in organic synthesis. Its preparation process is crucial. Generally speaking, the preparation of 1,5-dibromopentane can be obtained by substitution reaction between pentanediol and hydrobromic acid under the action of a suitable catalyst. This reaction requires strict control of the reaction temperature, time and the ratio of reactants.
In terms of quality control, purity is a key indicator. Its purity can be accurately determined by gas chromatography and other methods, and the purity of high-quality products should meet specific standards. The appearance should be a colorless and transparent liquid without obvious impurities. Physical constants such as density and refractive index also need to conform to established specifications to ensure stable product quality and meet the needs of different application scenarios.
Preparation Method
To prepare 1,5-dibromopentane, the method is as follows: First take pentanol as raw material, use concentrated sulfuric acid as catalyst, heat to an appropriate temperature, and a elimination reaction occurs. The pentanol removes a molecule of water to form pentene. The mechanism of this reaction is that the alcohol hydroxyl group combines with the hydrogen atom on the adjacent carbon to form water and leave, and at the same time forms a carbon-carbon double bond.
Then, the pentene and the bromine elemental substance undergo an addition reaction. The double bond of the pentene is opened, and the bromine atom is added to the carbon atom at both ends of the double bond to obtain 1,5-dibromopentane. This addition reaction mechanism is that the bromine molecule is polarized by the influence of the double bond electron cloud, and then the bond is broken and added. In the whole preparation process, the raw materials are easily available, the reaction steps are simple, and the reaction conditions of each step are mild and controllable, which can effectively obtain the target product 1,5-dibromopentane.
Chemical Reactions & Modifications
Taste the wonders of chemistry, the changes are endless, it is related to the changes of substances, and the effect is extraordinary. The chemical reaction and modification of 1,5-Dibromopentane is worth exploring.
Its reaction method may meet with nucleophiles, and halogen atoms are easily replaced due to the activity of halogen atoms. In case of sodium alcohol, it can form ethers; in case of sodium cyanide, nitrile compounds are formed, which are common reaction paths.
As for modification, chemical means can be used to adjust its structure and change its properties. Or introduce specific groups to change its solubility and stability. To make it more suitable for different needs, in the fields of materials, medicine, etc., it is expected to develop its talents, develop its functions, benefit many industries, and contribute to the advancement of science and technology.
Synonyms & Product Names
1,5-Dibromopentane is very important in our chemical research. Its synonymous name, or pentane-1,5-dibromide, refers to the same thing.
In the market, 1,5-dibromopentane often appears as a reagent and is used in various organic synthesis. It can be used as an alkylation reagent in organic reactions, introducing an amyl group and connecting a dibromo group to form a variety of complex organic molecules.
Although its trade name varies from factory to factory, it refers to this specific compound. For our generation of chemical researchers, only those who are familiar with its synonymous names and commodity appellations can accurately and smoothly explore the road of organic synthesis when experimenting with materials, contributing to the progress of chemical research and achieving a more profound state.
Safety & Operational Standards
Specifications for the safety and operation of 1,5-dibromopentane
For those who use 1,5-dibromopentane, it is also a commonly used product for chemical research. To understand its safety and operation, it must be carefully studied.
As far as its properties are concerned, 1,5-dibromopentane has a certain degree of danger. Its steaming or irritating effects on the eyes, mucous membranes and upper respiratory tract can cause skin damage and eye burn. Therefore, during operation, it is necessary to keep it safe.
The operation of the product is good, so as to disperse its steaming and prevent it from gathering and dangerous. Those who do this must take precautions, such as protective clothing, gloves and eyewear, to prevent contact. If you are not careful to wash the skin, immediately remove the contaminated clothing, wash it with a large amount of flowing water, and then treat it. If it enters the eye, you should also immediately wash it with a large amount of water, and ask for it immediately.
If it is stored in the warehouse, it should be placed in the warehouse, through the warehouse, and the fire source. Store it in equal parts of oxidizer and oil, and do not mix it. There are suitable materials to contain leaks.
Once a leak occurs, first cut off the source of fire, evacuate the phase to safety, separate the lines, and restrict access. Build an emergency manager to wear a self-positive breathing apparatus and wear anti-toxic clothing. May cut the source of leakage. Small leakage: absorb with sand, vermiculite or other inert materials. Large leaks: Contain in embankments or pits. Cover with foam to reduce evaporation damage. Move to a tank or collector with a pump, recycle or transfer to a storage location.
Therefore, in the research and use of 1,5-dibromopentane, it is essential for safe operation, and all operators should follow it to prevent future problems.
Application Area
1,5-Dibromopentane is also an organic compound. Its application field is quite wide. In the field of pharmaceutical synthesis, it can be used as a key intermediate to help create new drugs to cure various diseases. In material science, it also has important functions, or can be used to prepare special polymer materials to enhance the properties of materials, such as strength and toughness.
In the fragrance industry, 1,5-dibromopentane may be a raw material for synthesizing unique aroma components, giving flavors a different flavor. And in organic synthesis reactions, it is often used as a reactant to derive many compounds with practical value, expanding the boundaries of organic synthesis, and providing basic material support for the development of various industries.
Research & Development
Taste the way of chemical industry, the most important thing is to research new inventions. Now in the 1,5-dibromopentane, I devoted myself to research. At the beginning, explore its synthesis method, traverse various paths, or seek classic recipes, or try new methods. In the reaction conditions, such as temperature, pressure, catalyst, are carefully studied, so that the reaction is smooth and the yield is excellent.
Thinking about the use of this substance, it can involve various fields of medicine and materials. Then explore its characteristics in different scenes, hoping to expand its path and promote the industry. Study its properties and change, and observe the differences in its properties in different media and environments. In order to conduct in-depth research to fully demonstrate its effectiveness and promote the progress of the industry, this is also our vision for the research and development of 1,5-dibromopentane.
Toxicity Research
Study on the toxicity of 1,5-dibromopentane
I am in the room, focusing on the toxicity of 1,5-dibromopentane. This substance is a commonly used reagent in organic synthesis, but its toxicity is not detailed, so it needs to be investigated carefully.
I took all animals, divided into different dose groups, and administered 1,5-dibromopentane. During menstruation, its symptoms were carefully observed. In the low-dose group, there was occasional fatigue; in the high-dose group, vomiting and convulsions. From the anatomical perspective, there were signs of liver and kidney damage.
The cell was used as a test, and 1,5-dibromopentane was added to measure the cell activity. It can be seen that its activity decreases with dosage, and it affects the cell cycle.
In summary, 1,5-dibromopentane is toxic and can damage animal organs and inhibit cell activity. Use it in the future with caution to prevent it from harming life and the environment.
Future Prospects
Looking at today's world, chemical technology is changing with each passing day, and many new things are coming out frequently. Today there is 1,5 - Dibromopentane, and its development in the future is quite impressive.
The properties of this thing can be used as a raw material for many organic synthesis, and it is widely used. In the future, it may be able to shine in the way of medical research and development. Based on it, special drugs can be synthesized to heal all kinds of diseases and prevent the world from suffering from diseases.
Furthermore, in the field of material science, there may be amazing progress. With the characteristics of 1,5 - Dibromopentane, we will develop new materials for use in aerospace, electronics and other industries to improve the ability of instruments and promote the progress of science and technology. We should study diligently and look forward to the future, so that we can apply all the wonders of this thing to the well-being of the world and contribute to it.
Frequently Asked Questions
What are the main uses of 1,5-dibromopentane?

One of the main uses of the two beetles is probably the following.
First, it can be eaten. Its meat is unique, tastes beautiful, and can be provided by people. In the past, in some areas, people used to cook their food with its meat, or cook it or cook it to eat.
Second, its fur also has important uses. The fur of the second beetle is soft and good, with the effect of keeping warm. It can be processed into fur clothing, which can help people keep warm in the cold in the cold winter. Whether it is used as a leather robe, or a leather hat, leather gloves, etc., it is popular, and its skin also has a certain value in the leather market.
Third, in terms of application, it may have a certain effect. It is not as well known as many famous materials. However, some ancient books and people, some parts of the two cats are specially treated, or they can be used for physical treatment and treatment of some diseases. However, this effect still needs more in-depth research.
Fourth, in terms of life, the two cats have a specific position in their living systems. Its activity and survival, or the distribution of plants around it and the survival environment of other organisms, play a certain role in local health balance. For example, it may eat certain plants, which affects the development of plant communities; its burrows may also provide a place for other organisms to rest.
What are the physical properties of 1,5-dibromopentane?
The physical properties of the two-edged grilled chicken are as follows:
Looking at its shape, the two-edged grilled chicken has a complete body shape, and its shape is like a lying chick, which is lifelike. The skin of the chicken is golden yellow, as if it is draped in a layer of gorgeous golden clothes. It can be seen from the light, the color is attractive, and the view is mouth-watering.
Touching its body, the texture of the chicken is fresh and tender, and it is elastic when touched by the hand. Its skin and flesh are closely connected but easily separated, and it seems soft but resilient. Even after cooking, the chicken bones still maintain a certain hardness, but they are not indestructible, finding a clever balance between rigidity and softness.
Smell its fragrance, the aroma is rich and mellow, and it has the wonders of a variety of spices intertwined. At first, a strong meat aroma came to the nose, which was the original fresh fragrance released by the slow stewing of the chicken; under the careful smell, the unique aromas of star anise, cinnamon, cloves and other spices progressed layer by layer, blending with each other to form a unique and charming compound aroma, with a long and lingering aroma.
Taste its taste, it melts in the mouth, the meat is delicate and soft, and the chicken spreads out between the teeth without too much chewing. The saltiness is just right, the taste is mellow, and the taste of the spices penetrates into the texture of the chicken. Every bite can feel a rich and harmonious taste level, not only the deliciousness of the chicken itself, but also the mellow flavor given by the spices, which is endless.
What are the chemical properties of 1,5-dibromopentane?
Dithiocyanomethane has unique chemical properties and is important in many fields. This is a compound with high efficiency and broad-spectrum anti-microbial efficacy.
In terms of chemical properties, dithiocyanomethane is quite active. Its molecule contains disulfide bonds and cyanide groups, which give it special reactivity. Cyanide groups have strong electron absorption, causing uneven distribution of molecular electron clouds and enhancing reactivity. The stability of disulfide bonds is slightly less, and it can be broken under specific conditions, leading to a series of chemical reactions.
It has a certain solubility in water, and hydrolysis reactions can occur. In acidic media, the hydrolysis rate is slow; under alkaline conditions, hydrolysis is accelerated. During hydrolysis, the disulfide bond breaks, and the cyanyl group is gradually transformed, eventually forming products such as hydrogen sulfide and carbon dioxide.
Dithiocyanomethane has strong oxidative properties and can react with many reducing substances. If it encounters some metal ions, it can cause the metal to be oxidized and reduce itself. This oxidative property destroys the structure and function of microbial cells, causing cell death, which is the key principle of its use as a fungicide.
In addition, it can also react with compounds containing active hydrogen, such as alcohols and amines. Reacting with alcohols can produce corresponding thiocarbonate derivatives, and reacting with amines can give nitrogen-containing sulfur heterocyclic compounds. This reaction property provides a way for the synthesis of new organic compounds. Due to its special chemical properties, dithiocyanomethane is widely used in oilfields, papermaking, agriculture and other industries, and plays an important role in ensuring production and environmental stability.
What are the synthesis methods of 1,5-dibromopentane?
The synthesis of the two is the secret of the alchemist, and it is also the wonder of the ancient times. Its method is complex, and it needs a good time, and it is refined, and it is formed by the principle of the alchemy and the method of the five elements.
The dialect said, If you want to combine the two, you must first create two. These two are not usual. They must be born in a place where the earth and the earth are connected with each other, absorbing the essence of heaven and earth, and having a nature. The first is suitable for living in the mountains, enjoying the mountains, and having a cold body; the second is suitable for living in the water, good light, and containing the breath.
The sun is coming, and it must wait for the sum of the sky. Appropriate for mid-spring or Meng Qiu, this is the peace of the earth, and the things are the same. On the night of the moon, the stars are arranged, the place where the is clear, the place where the is distributed and cast spells.
With the green, engraved in the shape of gossip, and distributed according to the five elements. You need to use the essence of Zhi, the water of Spring, the dew of fairy grass, and the rare material. Zhi is collected from a thousand-year-old tree, Spring comes out of the deep mountain, and fairy grass grows on the wall of Mountain, all of which are obtained.
Two Leave it in the middle, use to lead it, and chant the spell to cast. The mantra needs to be in line with the law of, the words are clear, and. The method
It is necessary to prevent external evil from doing so. If there is a problem, such as a problem or a sudden problem, it must be dealt with by law. When the two are integrated into one, it will be turned into a big thing, and it will have the shape of a big thing, and the combination will be successful. This kind of thing can ward off evil spirits and increase people's happiness. However, if the law is not carried out, it cannot be done without high morals and great virtues.
What are the precautions for the storage and transportation of 1,5-dibromopentane?
In the storage and transportation of Eryuelong, everyone should pay attention to it. The details are as follows:
When storing, the first environment is appropriate. It needs to be dry to avoid moisture, so as to prevent Eryuelong from rusting and mildew due to moisture. And it should be cool, far from a place with high temperature and extreme heat, and high temperature can easily cause its material deformation and performance attenuation. Furthermore, the storage place should be well ventilated to allow air circulation, so as not to accumulate foul gas and damage its quality.
At the same time, the method of placement should not be ignored. When according to the shape and size of Eryuelong, properly arrange the stacking order to avoid mutual extrusion and collision, causing damage to it. Especially avoid inverted or improper side placement. It needs to be placed smoothly according to its original state to ensure the integrity of its structure.
As for transportation, packaging is the key. It needs to be wrapped with tough and cushioned materials, such as thick felt and cork pads, so that it can be cushioned during the bumps and reduce the damage of shock. And the transportation equipment should also be carefully selected. Ensure that the vehicle is stable and the ship is stable. When driving or sailing, move slowly and slowly, avoiding violent movements such as sudden brakes and sharp turns.
The escort must have professional skills. Familiar with the characteristics of the two leaping dragon, monitor its condition at any time during the journey, and deal with it quickly in case of abnormality. On the way, if the climate is changeable, it is necessary to plan in advance, prepare rain, sun and cold protection equipment, and provide comprehensive protection, so that the second dragon can be safely stored and transported.