4-Methyl-3-Nitrobenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	140889
Chemical Formula	C7H7NO5S
Molar Mass	217.20 g/mol
Appearance	Solid
Solubility In Water	Soluble to some extent
Melting Point	Data may vary, but around 100 - 150 °C (approximate, needs more specific research)
Boiling Point	Decomposes before boiling
Acidity	Acidic due to sulfonic acid group
Stability	Stable under normal conditions, but may react with strong oxidizing agents

Packing & Storage

Packing	100g of 4 - Methyl - 3 - Nitrobenzenesulfonic Acid packaged in a sealed, labeled bottle.
Storage	4 - Methyl - 3 - nitrobenzenesulfonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and oxidizing agents. Store in a tightly - sealed container to prevent moisture absorption and exposure to air. Label the storage container clearly to avoid confusion and ensure proper handling for safety.
Shipping	4 - Methyl - 3 - Nitrobenzenesulfonic Acid should be shipped in well - sealed containers, compliant with chemical transport regulations. Ensure proper labeling indicating its nature, and transport under conditions preventing spillage, exposure, and contamination.

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General Information

Historical Development

4-Methyl-3-nitrobenzenesulfonic acid is also a chemical product. At the beginning, many scholars studied and explored in the field of chemistry, wanting to obtain new substances to expand their use. At the beginning, its properties and preparation methods were not detailed, and they were only explored in various experiments.
Over the years, scholars have thought hard and tried various methods, or changed the conditions of the reaction, or the ratio of easy raw materials. Gradually, the method of synthesis and the mechanism of the reaction are understood.
With the passage of time, the use of this product has gradually become apparent. In the field of industry, it can be used as a reagent and the basis for the synthesis of other substances; in the context of scientific research, it can help students explore the mystery of chemistry. Therefore, 4-methyl-3-nitrobenzenesulfonic acid has gained its place in the history of chemistry, adding a touch of brilliance to the development of chemistry in later generations and promoting its continuous progress.

Product Overview

Today there is a substance called 4 - Methyl - 3 - Nitrobenzenesulfonic Acid. This is an organic compound with unique properties. In its molecular structure, methyl, nitro and benzenesulfonic acid groups are cleverly connected, giving it a variety of chemical characteristics.
Looking at its physical properties, it is often in a solid state, white or yellowish in color, and has a certain solubility in specific solvents. In terms of its chemical activity, due to the strong electron absorption of nitro groups, the electron cloud density of benzene rings changes, making it easy to participate in electrophilic substitution reactions; methyl has an electron supply effect, which affects the reaction check point and rate.
In the chemical industry, this compound has a wide range of uses. It can be used as an intermediate in organic synthesis and converted into many high-value-added products through a series of reactions, such as for the preparation of specific dyes, pharmaceutical intermediates, etc., which is of great significance for promoting the development of the chemical industry.

Physical & Chemical Properties

4-Methyl-3-nitrobenzenesulfonic acid is an organic compound. Its properties are both physical and chemical. Looking at its physical properties, at room temperature, it is either crystalline, white or slightly colored, with a certain melting point, and melts when heated. It can be distinguished from pure impurities by this property. In solvents, its solubility varies, and it has a certain solubility in polar solvents, such as water, which is related to the polarity and structure of the molecule.
In terms of its chemical properties, sulfonic acid groups are acidic and can react with bases to neutralize and form corresponding salts. The nitro group is a strong electron-absorbing group, which decreases the electron cloud density of the benzene ring, causing its chemical activity to change, and exhibits unique activity and localization effect in the electrophilic substitution reaction. The methyl group is the donator group, which also affects the electron cloud distribution of the benzene ring. The interaction of these groups constitutes the unique physicochemical properties of 4-methyl-3-nitrobenzene sulfonic acid, which is of great significance and use in organic synthesis and other fields.

Technical Specifications & Labeling

For 4-methyl-3-nitrobenzenesulfonic acid, it is also a chemical product. Its technical regulations and standards (commodity parameters) are of paramount importance. Looking at the technical regulations of this product, the first weight is its purity, and it must be high purity and few impurities before it can be used. And its physical properties, such as color, state, taste, etc., are all determined. The color should be correct, the state should be stable, and the taste should be appropriate.
As for the standard (commodity parameters), the exact number of ingredients containing the proportion is related to the performance and efficiency of the product. More stable, temperature, humidity and other changes should not make the quality poor. And this product in the reaction, the rate, yield and other parameters also need to be clear, in order to help workers use it properly, make it correct, ensure its quality, and use it safely.

Preparation Method

To prepare 4 - Methyl - 3 - Nitrobenzenesulfonic Acid, the method is as follows:
Raw material and production process: Toluene is used as the initial raw material, and it can be obtained by sulfonation, nitrification and other steps. First take an appropriate amount of toluene, add concentrated sulfuric acid in the reaction kettle, and heat it at controlled temperature. This is a sulfonation reaction to obtain p-methylbenzenesulfonic acid.
Reaction steps: The p-methylbenzenesulfonic acid is further treated, mixed acid (mixed solution of nitric acid and sulfuric acid) is added, and nitrification is carried out. After precise temperature control and stirring, nitro groups can be introduced to generate the target product 4 - Methyl - 3 - Nitrobenzenesulfonic Acid. Catalytic mechanism: In the process of sulfonation and nitrification, sulfuric acid not only acts as a reactant, but also plays a catalytic role in the reaction system, reducing the activation energy of the reaction, accelerating the reaction rate, and promoting the efficient progress of the reaction to achieve better production results.

Chemical Reactions & Modifications

In the 4-Methyl-3-Nitrobenzenesulfonic Acid, its chemical reaction and modification have been explored by scholars.
Looking at its reaction, it is affected by various conditions, such as temperature, pressure, and catalyst. Changes in temperature can often affect the rate and backwards of the reaction. At high temperatures, the energy of molecules increases sharply, collisions are frequent, and reactions may be fast; at low temperatures, the opposite is true. The same is true of pressure. In gas-phase reactions, pressurization or molecular coalescence promotes the formation of the reaction.
As for modification, it aims to make it easier and expand its use. or add groups to change the distribution of its electron cloud to adjust its activity. Or change its structure and change its physical properties, such as the degree of melting and boiling. This is to make 4-Methyl-3-Nitrobenzenesulfonic Acid better used in chemical and pharmaceutical fields and benefit the world.

Synonyms & Product Names

4-Methyl-3-nitrobenzenesulfonic acid, which has the same trade name, can be investigated. There are many names for chemical substances, either because of their function or because of their manufacture. 4-Methyl-3-nitrobenzenesulfonic acid also has other names to show its characteristics.
It is in the field of production, or has a trade name, which is designed to be used for chemical substances, which is easy to trade and distinguish. And those that are the same, or based on the approximate description of its chemical properties, or based on previous research. These names are all known to researchers and experts.
The name of 4-methyl-3-nitrobenzenesulfonic acid is like a substitute, leading me to explore its characteristics and uses. Its same trade name, like a star, and this core thing together form a corner of the world, helping me to deeply understand the secret of this compound.

Safety & Operational Standards

4-Methyl-3-nitrobenzenesulfonic acid
Safety and handling specifications for 4-methyl-3-nitrobenzenesulfonic acid
Fu 4-methyl-3-nitrobenzenesulfonic acid is an important ingredient in chemical products. To use it properly, it must first clarify its safety and operation specifications.
In terms of storage, choose a cool, dry and well-ventilated place. Keep away from heat sources and fires to prevent unexpected risks. If placed in a humid place, it may cause its properties to change, and may react chemically with surrounding substances, endangering safety.
When operating, strictly follow the regulations. The operator should wear complete protective equipment, such as protective clothing, protective gloves and protective goggles, to protect himself. Because it may be irritating to the skin and eyes, or even if accidentally inhaled or ingested, it may damage health.
During deployment and use, the action should be slow and careful. Read the manual and related guidelines carefully to explain its reaction characteristics and precautions. If there is a need for a chemical reaction, control its temperature, concentration and reaction time to prevent violent reactions.
In the event of a leak, take emergency measures as soon as possible. Isolate the scene and prohibit unrelated people from approaching. Small leaks can be collected with inert materials such as sand and vermiculite; if a large amount leaks, it needs to be embanketed and then disposed of according to specifications.
Furthermore, the disposal of waste should not be ignored. When following environmental regulations, collect it by classification and hand it over to professional institutions. Do not dispose of it at will to avoid polluting the environment.
In short, in the use of 4-methyl-3-nitrobenzenesulfonic acid, safety and operating standards are of paramount importance. Only by following this can people be safe and the environment is not damaged.

Application Area

4-Methyl-3-nitrobenzenesulfonic acid is also a chemical product. The field of its use is quite involved. In the dyeing and weaving industry, it can be used as a mordant agent to help color adhere to fabrics, making the color firm and bright. In the preparation of medicine, it also has its function, or is an intermediate body, participating in the synthesis of medicine, helping to obtain special drugs. In the genus of agrochemical, or as an active agent, it helps to educate agricultural products and prevent the disturbance of diseases and pests. Although the body is small, it is used in all industries, such as the star shining in the sky, although small and bright, for the industry of work, medicine and agriculture, adding strength and promoting its progress.

Research & Development

In the field of chemistry, I have been focusing on research for a long time. Recently, the 4 - Methyl - 3 - Nitrobenzenesulfonic Acid involved is of great research value.
At the beginning, in order to clarify its nature, observe its reaction, and analyze its structure. In the laboratory, with rigorous methods, temperature control, ratio adjustment, and observation of its changes. After several attempts, a lot of data have been obtained.
Then, think about its development path. This substance may be available in industrial production, pharmaceutical research and development. If it can be used well, optimize the synthesis method, improve its purity, and increase its yield, it will definitely make significant progress in related fields.
I will make unremitting efforts to study it, hoping to contribute to its development, to promote the greater effectiveness of this substance, and to contribute to the academic community and the industry.

Toxicity Research

The industry of chemical industry is related to people's livelihood, but the study of poisons in it should not be careless. There are 4-Methyl-3-Nitrobenzenesulfonic Acid today, and the study of its toxicity is quite important.
Looking at this compound, it contains nitro and sulfonic acid groups, with different structures. Nitro groups are often toxic and can disturb the metabolism of organisms. Although sulfonic acid groups increase their water solubility, they do not reduce the hidden dangers of the whole.
After various experiments, observe its impact on living beings. In microbial bodies, or hinder their reproduction; in animal bodies, or damage their viscera. On the way into the body, either by breathing or through the skin.
Therefore, when studying the toxicity of this substance, we should be careful and cautious, and understand its harm. It is a protective policy, to ensure everyone's well-being, and to avoid disasters before they happen. This is the heavy responsibility of my generation of chemical researchers.

Future Prospects

4 - Methyl - 3 - Nitrobenzenesulfonic Acid, it is also a thing of transformation. I have high hopes for the research and development of this thing before it is developed.
Its properties are unique, or it can be used in many domains. In the research of materials, it is expected to help generate new materials that are resistant to corrosion, such as construction and machinery, and to explore new roads. In the way of development, it may also be able to improve its characteristics, synthesize substances, and save patients.
And its synthesis method, if it can be refined and improved, improve efficiency and reduce consumption, it will be widely used. In the future, we will strive to develop the 4 - Methyl - 3 - Nitrobenzenesulfonic Acid and use it for the benefit of the world, which will become a great success for our research seekers.

Frequently Asked Questions

What are the chemical properties of 4-methyl-3-nitrobenzenesulfonic acid?

4-Methyl-3-nitrobenzene sulfonic acid is one of the organic compounds. Its physical properties, at room temperature, are mostly solid, or crystalline, or white to pale yellow. This substance has good solubility in water, because of its sulfonic acid group, which is a hydrophilic group and can form hydrogen bonds with water molecules, making it soluble in water.
In terms of its chemical properties, the acidity of 4-methyl-3-nitrobenzene sulfonic acid is quite significant. The sulfonic acid group (-SO-H) is a strong acidic group, which can dissociate hydrogen ions (H-H) in aqueous solution, so the compound can exhibit the characteristics of an acid and can neutralize with bases to form corresponding salts. For example, when reacted with sodium hydroxide (NaOH), 4-methyl-3-nitrobenzene sulfonate and water can be formed.
Furthermore, there are both methyl (-CH-H) and nitro (-NO-2) on the benzene ring. Methyl is the power supply group, which can increase the electron cloud density of the benzene ring; while nitro is a strong electron-absorbing group, which can reduce the electron cloud density of the benzene ring. The coexistence of the two in the benzene ring has an impact on the reactivity of the benzene ring and the reaction check point. In the electrophilic substitution reaction, the electron-withdrawing effect of methyl groups and the electron-withdrawing effect of nitro groups compete with each other, resulting in the reaction mainly occurring in the adjacent and para-position of methyl groups, but due to the strong electron-withdrawing action of nitro groups, the reactivity is lower than that of benzene itself.
At the same time, nitro groups have oxidizing properties. Under specific conditions, they can participate in the reduction reaction, and nitro groups can be reduced to other groups such as amino groups. This property is of great significance in the field of organic synthesis. It can be used to prepare compounds containing amino groups through the reduction of nitro groups in 4-methyl-3-nitrobenzenesulfonic acid, and then expand their applications in many fields such as medicine and dyes.

What are the main uses of 4-methyl-3-nitrobenzenesulfonic acid?

4-Methyl-3-nitrobenzenesulfonic acid has a wide range of uses in chemical industry.
First, it is an essential raw material for the production of dyes. This is because 4-methyl-3-nitrobenzenesulfonic acid can introduce specific groups through various reactions, and then construct dye molecules with specific colors and properties. With the characteristics of nitro and sulfonic acid groups in its structure, the dye has better affinity for fiber materials, and the color fastness of the resulting dye is also quite good. Therefore, it is often used in the dyeing process of natural fibers such as cotton, linen, silk, and some synthetic fibers, making the fabric bright and lasting.
Second, it also plays an important role in the field of pharmaceutical synthesis. It can be used as a key intermediate and participates in the synthesis path of various drugs. By chemically modifying it, compounds with specific pharmacological activities can be constructed. For example, through a series of reactions, it is converted into pharmaceutical ingredients with antibacterial, anti-inflammatory and other effects, providing an indispensable foundation for pharmaceutical research and development.
Third, it is often used as a positioning reagent in organic synthetic chemistry. Due to the electronic effects and steric hindrance effects of methyl, nitro and sulfonic acid groups in the structure, it can guide other reagents to substitution reactions at specific positions of the benzene ring, providing assistance for the synthesis of organic compounds with precise structures, enabling chemists to construct complex organic molecular structures on demand, expanding the boundaries and possibilities of organic synthesis.
Fourth, in the preparation of surfactants, it may also have applications. The sulfonic acid group gives it a certain hydrophilicity, while the benzene ring and methyl group provide a certain hydrophobicity. With this amphiphilic structure, it can be used to prepare surfactants under specific conditions and applied to products such as detergents and emulsifiers to reduce the surface tension of liquids and improve the performance and efficacy of products.

What is the preparation method of 4-methyl-3-nitrobenzenesulfonic acid?

4-Methyl-3-nitrobenzoic acid is an important intermediate in organic synthesis. The preparation method is as follows:
First take an appropriate amount of toluene, place it in a reactor, and add an appropriate amount of mixed acid of concentrated sulfuric acid and concentrated nitric acid. This step requires careful temperature control, about 50-60 ° C to prevent excessive side reactions. Because the methyl group of toluene is an ortho-para-position group, under this condition, nitric acid will attack the ortho-and para-positions of benzene cyclomethyl group to form a mixture of o-nitrotoluene and p-nitrotoluene.
After the reaction is completed, pour the reaction solution into ice water, and perform a series of operations such as liquid separation, water washing, and alkali washing to remove residual acids and other impurities. Subsequently, the obtained mixture of o-nitrotoluene and p-nitrotoluene was rectified, and p-nitrotoluene was precisely separated according to the difference in boiling points between the two.
Then, take p-nitrotoluene and place it in another reactor, add an appropriate amount of acidic potassium permanganate solution. This oxidation reaction needs to be carried out under the condition of heating and reflux, and the temperature is about 100-120 ℃. Under the action of strong oxidant potassium permanganate, the methyl group of p-nitrotoluene is oxidized to carboxyl group, and then 4-methyl-3-nitrobenzoic acid is formed. After the reaction is completed, the reaction liquid is cooled, the precipitated solid is collected by suction filtration, and then recrystallized with water to remove impurities and improve the purity of the product, and finally obtain high-purity 4-methyl-3-nitrobenzoic acid. In this preparation process, the control of reaction conditions at each step is extremely critical, which affects the yield and purity of the product.

What are the precautions for 4-methyl-3-nitrobenzenesulfonic acid during storage and transportation?

For 4-methyl-3-nitrobenzenesulfonic acid, be careful during storage and transportation.
The first word of storage, this substance should be stored in a cool, dry and well-ventilated place. Because of its specific chemical properties, if it is exposed to high temperature and humidity, it may cause qualitative changes and damage its quality. And it is necessary to keep away from fires and heat sources to prevent unexpected explosions. This substance should be stored separately from oxidizing agents, reducing agents, and alkalis, and must not be mixed. It is easy to react chemically with such substances and cause danger. In the storage place, there should be suitable materials to contain leaks, just in case of leakage, and it can be disposed of in time to avoid greater disasters.
As for transportation, there are also many requirements. Before transportation, it is necessary to ensure that the packaging is complete and well sealed to prevent leakage during transportation. Vehicles used during transportation must be clean, dry, and free of other substances that may react with them. During transportation, it should be protected from exposure to the sun, rain, and high temperature. Escorts must be familiar with the characteristics of this substance and emergency treatment methods, and always pay attention to the transportation situation. If a leak occurs during transportation, do not panic. Emergency measures should be taken immediately to evacuate the surrounding people, isolate the leakage area, and strictly prohibit unrelated personnel from approaching. Depending on the leakage situation, select suitable materials to absorb or contain the leakage, collect it carefully, handle it properly, and do not discard it at will to avoid polluting the environment.
Therefore, during the storage and transportation of 4-methyl-3-nitrobenzenesulfonic acid, careful attention should be paid to the above, so as to ensure safety.

What are the effects of 4-methyl-3-nitrobenzenesulfonic acid on the environment and human health?

4-Methyl-3-nitrobenzenesulfonic acid has an impact on both the environment and human health.
At one end of the environment, if this compound is released into nature, it may cause pollution of water bodies and soil. It is difficult to degrade in water and can persist for a long time, endangering aquatic organisms. Because of its nitrogen, sulfur and other elements, or the eutrophication of water bodies, algae grow wildly, destroying the ecological balance of water. It flows into the soil, or changes the chemical properties of the soil, affecting plant growth. And its decomposition products or other harmful substances, further endangering the environment.
As for human health, if people are exposed to this substance, inhalation through the respiratory tract, skin contact or accidental ingestion, it can cause many health problems. Respiratory contact, or irritate the mucosa of the respiratory tract, causing cough, asthma, breathing difficulties and other diseases, long-term exposure or even increase the risk of respiratory diseases. Skin contact, or cause allergies, redness, swelling, itching and other skin inflammation. If eaten by mistake, or damage the digestive system, nausea, vomiting, abdominal pain and other symptoms, serious life-threatening. Furthermore, this substance may be potentially carcinogenic, long-term exposure, or genetic mutation, increasing the chance of cancer.
Therefore, the use and emission of 4-methyl-3-nitrobenzenesulfonic acid should be strictly controlled to prevent it from causing greater damage to the environment and human health.