Linshang Chemical
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1-Chloro-3,4-Dimethylbenzene
Linshang Chemical
|
HS Code |
528296 |
| Chemical Formula | C8H9Cl |
| Molar Mass | 140.61 g/mol |
| Appearance | Colorless to pale - yellow liquid |
| Odor | Aromatic odor |
| Density | 1.04 g/cm³ (approximate) |
| Boiling Point | 196 - 198 °C |
| Melting Point | -44 °C |
| Solubility In Water | Insoluble |
| Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, ether |
| Flash Point | 75 °C (closed - cup) |
As an accredited 1-Chloro-3,4-Dimethylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1 - chloro - 3,4 - dimethylbenzene: Packed in 500 - mL glass bottles, one per package. |
| Storage | 1 - Chloro - 3,4 - dimethylbenzene should be stored in a cool, well - ventilated area, away from heat sources and ignition points due to its flammability risks. Keep it in a tightly - sealed container to prevent vapor leakage. Store it separately from oxidizing agents and reactive chemicals to avoid potential chemical reactions. Ensure proper labeling for easy identification and safety handling. |
| Shipping | 1 - Chloro - 3,4 - dimethylbenzene should be shipped in tightly - sealed, corrosion - resistant containers. It must be labeled properly as a chemical. Transport follows regulations for hazardous substances, ensuring secure handling to prevent spills and environmental risks. |
Competitive 1-Chloro-3,4-Dimethylbenzene prices that fit your budget—flexible terms and customized quotes for every order.
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What are the physical properties of 1-chloro-3,4-dimethylbenzene?
The physical properties of 1,3-deuterium-3,4-dimethylbenzene are as follows:
It is usually a colorless to light yellow liquid at room temperature and pressure, and has a special aromatic odor. This is a common appearance characteristic of many benzene compounds, and the aromatic odor is derived from the special structure of the benzene ring.
The substance has a certain degree of volatility, and it will gradually transform from a liquid state to a gaseous state and diffuse into the air. Its boiling point is a key indicator to measure its volatility. The specific boiling point will change due to the presence of deuterium atoms and dimethyl atoms in the molecular structure. Compared with ordinary benzene compounds, because the mass of deuterium atoms is greater than that of hydrogen atoms, the intermolecular forces will change, and the boiling point may increase slightly.
In terms of density, it is lighter than water and will float above the water surface. This is because its molecular composition and structure determine that the mass per unit volume is relatively small.
In terms of solubility, 1,3-deuterium-3,4-dimethylbenzene is insoluble in water. This is due to the hydrophobicity of benzene rings and methyl groups, which makes it difficult to form effective interactions with water molecules. However, it is soluble in many organic solvents, such as ethanol, ether, etc., because these organic solvents have similar intermolecular forces and chemical properties to this compound, following the principle of "similar miscibility".
Its refractive index is also one of the important physical properties. The refractive index reflects the refractive ability of the substance to light, and is closely related to the electron cloud distribution and structure of the molecule. By measuring the refractive index, the purity of the substance can be identified and analyzed.
It is usually a colorless to light yellow liquid at room temperature and pressure, and has a special aromatic odor. This is a common appearance characteristic of many benzene compounds, and the aromatic odor is derived from the special structure of the benzene ring.
The substance has a certain degree of volatility, and it will gradually transform from a liquid state to a gaseous state and diffuse into the air. Its boiling point is a key indicator to measure its volatility. The specific boiling point will change due to the presence of deuterium atoms and dimethyl atoms in the molecular structure. Compared with ordinary benzene compounds, because the mass of deuterium atoms is greater than that of hydrogen atoms, the intermolecular forces will change, and the boiling point may increase slightly.
In terms of density, it is lighter than water and will float above the water surface. This is because its molecular composition and structure determine that the mass per unit volume is relatively small.
In terms of solubility, 1,3-deuterium-3,4-dimethylbenzene is insoluble in water. This is due to the hydrophobicity of benzene rings and methyl groups, which makes it difficult to form effective interactions with water molecules. However, it is soluble in many organic solvents, such as ethanol, ether, etc., because these organic solvents have similar intermolecular forces and chemical properties to this compound, following the principle of "similar miscibility".
Its refractive index is also one of the important physical properties. The refractive index reflects the refractive ability of the substance to light, and is closely related to the electron cloud distribution and structure of the molecule. By measuring the refractive index, the purity of the substance can be identified and analyzed.
What are the chemical properties of 1-chloro-3,4-dimethylbenzene?
3,4-Dimethylpyridine, also known as 3,4-dimethylazobenzene, is one of the pyridine compounds. This substance has many unique chemical properties:
- ** Basic **: The nitrogen atom of 3,4-dimethylpyridine contains a pair of lone pairs of electrons, which can accept protons and appear alkaline. In aqueous solutions, it can react with acids to form corresponding salts. For example, when reacted with hydrochloric acid, 3,4-dimethylpyridine hydrochloride is formed. This alkaline property makes it a base catalyst in some organic synthesis reactions, promoting the smooth progress of the reaction.
- ** Nucleophilic Substitution Reaction **: The electron cloud distribution on the pyridine ring is not uniform, and the electronegativity of the nitrogen atom is relatively large, which reduces the density of the adjacent and para-position electron clouds on the pyridine ring. Therefore, the pyridine ring of 3,4-dimethylpyridine is susceptible to attack by nucleophilic test agents, and nucleophilic substitution reactions occur. For example, when reacting with nucleophilic reagents such as sodium amide, the halogen atoms on the pyridine ring can be replaced by amino groups.
- ** Oxidation Reaction **: 3,4-dimethylpyridine can be oxidized by specific oxidants. For example, under appropriate conditions, it can be oxidized by oxidants such as potassium permanganate, and the pyridine ring may be destroyed to form oxidation products such as carboxylic If a mild oxidizing agent is used, the methyl group may be selectively oxidized to form an aldehyde group or a carboxyl group.
- ** Alkylation Reaction **: Affected by nitrogen atoms, the hydrogen atoms on the methyl group of 3,4-dimethylpyridine have a certain activity. Under the action of strong bases and other conditions, the hydrogen atoms on the methyl group can be pulled out to generate carbon negative ions, and then alkylation reactions occur with alkylation reagents such as halogenated hydrocarbons, allowing the introduction of new alkyl groups on the methyl group.
- ** Coordination Ability **: The nitrogen atoms of 3,4-dimethylpyridine can be used as ligands to form coordination bonds with metal ions to form metal complexes. These metal complexes have a wide range of applications in the field of catalysis, materials science, etc. For example, some metal complexes can act as catalysts for specific organic reactions.
- ** Basic **: The nitrogen atom of 3,4-dimethylpyridine contains a pair of lone pairs of electrons, which can accept protons and appear alkaline. In aqueous solutions, it can react with acids to form corresponding salts. For example, when reacted with hydrochloric acid, 3,4-dimethylpyridine hydrochloride is formed. This alkaline property makes it a base catalyst in some organic synthesis reactions, promoting the smooth progress of the reaction.
- ** Nucleophilic Substitution Reaction **: The electron cloud distribution on the pyridine ring is not uniform, and the electronegativity of the nitrogen atom is relatively large, which reduces the density of the adjacent and para-position electron clouds on the pyridine ring. Therefore, the pyridine ring of 3,4-dimethylpyridine is susceptible to attack by nucleophilic test agents, and nucleophilic substitution reactions occur. For example, when reacting with nucleophilic reagents such as sodium amide, the halogen atoms on the pyridine ring can be replaced by amino groups.
- ** Oxidation Reaction **: 3,4-dimethylpyridine can be oxidized by specific oxidants. For example, under appropriate conditions, it can be oxidized by oxidants such as potassium permanganate, and the pyridine ring may be destroyed to form oxidation products such as carboxylic If a mild oxidizing agent is used, the methyl group may be selectively oxidized to form an aldehyde group or a carboxyl group.
- ** Alkylation Reaction **: Affected by nitrogen atoms, the hydrogen atoms on the methyl group of 3,4-dimethylpyridine have a certain activity. Under the action of strong bases and other conditions, the hydrogen atoms on the methyl group can be pulled out to generate carbon negative ions, and then alkylation reactions occur with alkylation reagents such as halogenated hydrocarbons, allowing the introduction of new alkyl groups on the methyl group.
- ** Coordination Ability **: The nitrogen atoms of 3,4-dimethylpyridine can be used as ligands to form coordination bonds with metal ions to form metal complexes. These metal complexes have a wide range of applications in the field of catalysis, materials science, etc. For example, some metal complexes can act as catalysts for specific organic reactions.
What are the industrial uses of 1-chloro-3,4-dimethylbenzene?
"Tiangong Kaiwu" says: "It is like mercury, its quality is the same as that of salt, and its shape and quality are different. Today, mercury and salts belong to the same halogen group, but their properties are different. As for 3,4-dibenzylnaphthalene, this substance also has many wonderful uses in industry."
The use of 3,4-dibenzylnaphthalene in industry is first in the field of organic synthesis. It can be used as a key intermediate for the preparation of various complex organic compounds. Due to the particularity of the naphthalene ring structure, 3,4-dibenzylnaphthalene is endowed with unique reactivity and can participate in many organic reactions, such as nucleophilic substitution and addition. With this, chemists can use 3,4-dibenzylnaphthalene as a starting material to carefully construct a variety of complex molecular structures, laying the foundation for the creation of novel compounds in the pharmaceutical, materials and other industries.
In the field of materials science, 3,4-dibenzylnaphthalene is also of great value. Because of its molecular structure, it can endow materials with specific properties. For example, in the preparation of polymer materials, the introduction of 3,4-dibenzylnaphthalene structural units can effectively regulate the thermal stability, mechanical properties and optical properties of materials. In this way, high-performance materials suitable for different scenarios can be prepared, such as high-temperature engineering plastics, high-light-transmitting optical materials, etc., which are widely used in electronics, aerospace and other fields.
Furthermore, in the fine chemical industry, 3,4-dibenzylnaphthalene can be used as a raw material for the synthesis of special additives. Such additives can significantly improve product quality and performance. Adding additives derived from 3,4-dibenzylnaphthalene to coatings, inks and other products can improve the leveling, drying speed and adhesion of products, thereby enhancing the market competitiveness of products.
In short, 3,4-dibenzylnaphthalene is widely used in industry and plays a key role in the fields of organic synthesis, materials science and fine chemicals, promoting the sustainable development and innovation of various related industries.
The use of 3,4-dibenzylnaphthalene in industry is first in the field of organic synthesis. It can be used as a key intermediate for the preparation of various complex organic compounds. Due to the particularity of the naphthalene ring structure, 3,4-dibenzylnaphthalene is endowed with unique reactivity and can participate in many organic reactions, such as nucleophilic substitution and addition. With this, chemists can use 3,4-dibenzylnaphthalene as a starting material to carefully construct a variety of complex molecular structures, laying the foundation for the creation of novel compounds in the pharmaceutical, materials and other industries.
In the field of materials science, 3,4-dibenzylnaphthalene is also of great value. Because of its molecular structure, it can endow materials with specific properties. For example, in the preparation of polymer materials, the introduction of 3,4-dibenzylnaphthalene structural units can effectively regulate the thermal stability, mechanical properties and optical properties of materials. In this way, high-performance materials suitable for different scenarios can be prepared, such as high-temperature engineering plastics, high-light-transmitting optical materials, etc., which are widely used in electronics, aerospace and other fields.
Furthermore, in the fine chemical industry, 3,4-dibenzylnaphthalene can be used as a raw material for the synthesis of special additives. Such additives can significantly improve product quality and performance. Adding additives derived from 3,4-dibenzylnaphthalene to coatings, inks and other products can improve the leveling, drying speed and adhesion of products, thereby enhancing the market competitiveness of products.
In short, 3,4-dibenzylnaphthalene is widely used in industry and plays a key role in the fields of organic synthesis, materials science and fine chemicals, promoting the sustainable development and innovation of various related industries.
What is the preparation method of 1-chloro-3,4-dimethylbenzene?
The method of preparing 1-bromo-3,4-dimethylbenzene begins with 3,4-dimethylaniline, which is obtained by diazotization and Sandmeier reaction.
First take an appropriate amount of 3,4-dimethylaniline, dissolve it in dilute hydrochloric acid, and cool it to a low temperature, generally 0-5 ° C. Then slowly add an aqueous solution of sodium nitrite dropwise. This process requires strict temperature control to ensure a smooth reaction. This is a diazotization reaction. The main point of the reaction is to form a diazonium salt, which is extremely unstable, so it must be operated at low temperature.
After obtaining the diazonium salt solution, prepare another container and put in the hydrobromic acid solution of cuprous bromide. The diazonium salt solution is slowly poured into it, which is called the Sandmeier reaction. Substitution occurs during this period, and the diazonium group is replaced by the bromine atom, so 1-bromo-3,4-dimethylbenzene is obtained.
After the reaction is completed, the product needs to be separated and purified. It can be extracted with an organic solvent first to enrich the product in the organic phase. Then the organic phase is washed with water to remove impurities. Then dry with anhydrous sodium sulfate to remove residual water. Finally, pure 1-bromo-3,4-dimethylbenzene was distilled according to the difference between the boiling point of the product and the impurity.
This preparation method has stricter conditions, and the temperature control of the diazotization reaction is very important. The activity of cuprous bromide in the Sandmeier reaction also affects the yield. However, according to this standard operation, higher purity of 1-bromo-3,4-dimethylbenzene can be obtained.
First take an appropriate amount of 3,4-dimethylaniline, dissolve it in dilute hydrochloric acid, and cool it to a low temperature, generally 0-5 ° C. Then slowly add an aqueous solution of sodium nitrite dropwise. This process requires strict temperature control to ensure a smooth reaction. This is a diazotization reaction. The main point of the reaction is to form a diazonium salt, which is extremely unstable, so it must be operated at low temperature.
After obtaining the diazonium salt solution, prepare another container and put in the hydrobromic acid solution of cuprous bromide. The diazonium salt solution is slowly poured into it, which is called the Sandmeier reaction. Substitution occurs during this period, and the diazonium group is replaced by the bromine atom, so 1-bromo-3,4-dimethylbenzene is obtained.
After the reaction is completed, the product needs to be separated and purified. It can be extracted with an organic solvent first to enrich the product in the organic phase. Then the organic phase is washed with water to remove impurities. Then dry with anhydrous sodium sulfate to remove residual water. Finally, pure 1-bromo-3,4-dimethylbenzene was distilled according to the difference between the boiling point of the product and the impurity.
This preparation method has stricter conditions, and the temperature control of the diazotization reaction is very important. The activity of cuprous bromide in the Sandmeier reaction also affects the yield. However, according to this standard operation, higher purity of 1-bromo-3,4-dimethylbenzene can be obtained.
What are the effects of 1-chloro-3,4-dimethylbenzene on the environment and humans?
"Tiangong Kaiwu" says: "1,1-dichloro-3,4-dimethylbenzene, this substance has a considerable impact on the environment and human body."
If 1,1-dichloro-3,4-dimethylbenzene is in the environment, it has considerable stability and is difficult to degrade naturally. Discharge outside, or exist in soil, water, or atmosphere. In soil, it can cause soil quality deterioration, hinder the uptake of nutrients by plant roots, cause plant growth to be trapped, stunted, and even wither and die, breaking the plant chain of the ecosystem. In water bodies, it can cause aquatic organisms to die, because of its toxicity, or cause aquatic animal lesions and fertility to decline, resulting in a decrease in the number of species and disrupting the aquatic ecological balance. In the atmosphere, it evaporates into the air, or participates in photochemical reactions, causing smog, acid rain and other bad weather, damaging air quality and harming regional climate.
As for the human body, its harm is also deep. Ingested into the human body through breathing, skin contact or diet. After entering the body, it may damage the nervous system, causing people to feel dizzy, weak, insomnia, difficulty concentrating, memory decline, and even convulsions, coma, endangering life. It also damages the liver and kidneys, which are important metabolic and detoxification organs of the human body. Affected by it, the function is abnormal, and the toxins in the body are difficult to eliminate, causing a variety of diseases. Long-term exposure to this substance increases the risk of cancer, such as leukemia, liver cancer, etc., which seriously threatens life and health.
is that 1,1-dichloro-3,4-dimethylbenzene is a serious threat to the environment and human beings. It is necessary to take care to prevent it, control its discharge, and prevent its ravages, so as to maintain ecological peace and human health.
If 1,1-dichloro-3,4-dimethylbenzene is in the environment, it has considerable stability and is difficult to degrade naturally. Discharge outside, or exist in soil, water, or atmosphere. In soil, it can cause soil quality deterioration, hinder the uptake of nutrients by plant roots, cause plant growth to be trapped, stunted, and even wither and die, breaking the plant chain of the ecosystem. In water bodies, it can cause aquatic organisms to die, because of its toxicity, or cause aquatic animal lesions and fertility to decline, resulting in a decrease in the number of species and disrupting the aquatic ecological balance. In the atmosphere, it evaporates into the air, or participates in photochemical reactions, causing smog, acid rain and other bad weather, damaging air quality and harming regional climate.
As for the human body, its harm is also deep. Ingested into the human body through breathing, skin contact or diet. After entering the body, it may damage the nervous system, causing people to feel dizzy, weak, insomnia, difficulty concentrating, memory decline, and even convulsions, coma, endangering life. It also damages the liver and kidneys, which are important metabolic and detoxification organs of the human body. Affected by it, the function is abnormal, and the toxins in the body are difficult to eliminate, causing a variety of diseases. Long-term exposure to this substance increases the risk of cancer, such as leukemia, liver cancer, etc., which seriously threatens life and health.
is that 1,1-dichloro-3,4-dimethylbenzene is a serious threat to the environment and human beings. It is necessary to take care to prevent it, control its discharge, and prevent its ravages, so as to maintain ecological peace and human health.
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