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2-Methylbenzenesulfonic Acid

Specifications

HS Code	280793
Chemical Formula	C7H8O3S
Molar Mass	172.202 g/mol
Appearance	White to yellowish solid
Odor	Typical sulfonic acid odor
Solubility In Water	Soluble
Melting Point	Around 12-15 °C
Boiling Point	Decomposes before boiling
Density	1.324 g/cm³ (approx.)
Acidity	Strong acid
Pka	Around -6 to -7
Stability	Stable under normal conditions
Corrosivity	Corrosive to metals and tissues

As an accredited 2-Methylbenzenesulfonic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage

Packing	500g of 2 - Methylbenzenesulfonic Acid packaged in a sealed, corrosion - resistant bottle.
Storage	2 - Methylbenzenesulfonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances such as strong bases. Store in tightly - sealed containers made of suitable materials like corrosion - resistant plastics or glass to prevent leakage and contact with air or moisture, which could affect its stability.
Shipping	2 - Methylbenzenesulfonic Acid is shipped in well - sealed, corrosion - resistant containers. These are carefully packed to prevent leakage during transit, following strict chemical shipping regulations to ensure safety.

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Competitive 2-Methylbenzenesulfonic Acid prices that fit your budget—flexible terms and customized quotes for every order.

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General Information

Historical Development

I have heard of the chemical industry, and there are many categories, among which 2 - Methylbenzenesulfonic Acid has its own unique historical evolution. At the beginning, chemists occasionally found traces of this compound in the exploration of matter. At that time, only some of its properties were known.
With the passage of time, various sages have gradually deepened their research. Analyze its structure and explore its reaction characteristics. The simple method in the past has been repeatedly honed and become more and more delicate. The preparation technique is from crude to precise, and the yield has gradually increased.
In the field of application, it was little known at first, but later due to many attempts, it was found to be helpful in many chemical processes. Therefore, its use has become increasingly widespread, and it has gradually developed its style on the stage of the chemical industry, eventually becoming an indispensable chemical product, leaving a unique imprint in the historical process.

Product Overview

2-Methylbenzenesulfonic acid is an organic compound. Its shape is either crystalline powder or liquid. With sulfonic acid group and methyl based on benzene ring, the structure is unique.
This compound is widely used in the field of organic synthesis. It can be used as a catalyst to accelerate the reaction process and improve the reaction efficiency in many chemical reactions. Its acidic properties can help the smooth progress of specific reactions and make the reaction conditions milder.
When using it, you should also pay attention to its properties. Because it is acidic or has a corrosive effect on certain substances, it is necessary to follow safety procedures when operating to ensure the safety of experimenters and the stability of the experimental environment. In this way, it can be used effectively in chemical research and industrial production.

Physical & Chemical Properties

2024 is a leap year, and February has 29 days in this year. The rules for judging leap years are: ordinary years that are divisible by 4 but not by 100 are leap years, and century years that are divisible by 400 are leap years. 2024 is an ordinary year, 2024 ÷ 4 = 506, there is no remainder, indicating that 2024 is divisible by 4, so 2024 is a leap year, and February has 29 days.

Technical Specifications & Labeling

2-Methylbenzenesulfonic acid is also an important product in the chemical industry. Its process specifications and identification (commodity parameters) are the key.
To make this product, when preparing various materials, choose excellent toluene, and add an appropriate amount of sulfuric acid to ensure that the purity is appropriate. In the kettle, the temperature is controlled at hundreds of degrees, the pressure is stabilized, and the catalytic agent is used to promote its reaction, so that the sulfonation is complete. After completion, by distillation and extraction, the impurities are removed and extracted to obtain pure 2-methylbenzenesulfonic acid.
Looking at its logo, the composition and content must be stated, and the dangerous properties such as corrosion and irritation must be marked. It is shown that it should be stored properly, and it should be placed in a cool, dry place to avoid fire and oxidants. It is also necessary to list the usage and dosage in detail to help the user operate without error, ensure safety and achieve good effect. According to this process specification and labeling, the best Anzhi 2-methylbenzenesulfonic acid products can be obtained.

Preparation Method

The method of making 2-methylbenzenesulfonic acid, the first raw material. Take toluene as the raw material, this is the foundation. Its production process is based on the method of sulfonation. The key to this reaction step is to make toluene and sulfuric acid co-react, control its temperature and adjust its ratio.
Toluene and concentrated sulfuric acid are mixed in a kettle. At the beginning, slowly heat up, observe its changes, wait for it to be stable, and continue to adjust the temperature to an appropriate level. Among them, the quality and quantity of sulfuric acid need to be accurate, too much will be wasted, and less should be insufficient.
After the reaction is completed, if you want to obtain a pure product, you need to refine it. By neutralizing and separating, except for its impurities. After distillation and other methods, the product is purified to obtain 2-methylbenzenesulfonic acid. The whole process, temperature control, quality control, and refining are all related to the advantages and disadvantages of the product, which cannot be ignored.

Chemical Reactions & Modifications

Taste the wonders of chemical industry, it is related to the change of substances, the reaction and modification of chemistry, especially the gist. On this 2-Methylbenzenesulfonic Acid. The way to adapt, at the beginning, more follow the old method, but there may be some problems. To seek new changes, we should consider its structure. In its molecular structure, methyl is connected to benzenesulfonic acid group, and the two affect each other, resulting in its activity.
The response of the old method, the efficiency or not, and the purity of the product can also be improved. In order to improve its shape, researchers explore new agents and adjust conditions. Try to use a mild agent, an easily intense drug, to reduce the side reaction and increase the main production. Also adjust the temperature and pressure, and observe the change of its response. After repeated trials, a new way is obtained, making the product smoother and the quality of the product also rises. This is the progress of chemical application and modification, and unremitting research is used to obtain exquisite methods to create better products.

Synonyms & Product Names

2-Methylbenzenesulfonic acid is also a product of chemistry. Its name is the same as that of other people, and Shang also has another name. Gu Yun: "The name is the same, so other things are also." In the realm of chemistry, the same name and the name of this thing are also important for distinguishing their quality and use.
2-Methylbenzenesulfonic acid, or called o-methylbenzenesulfonic acid, is the same name. The name of Shang varies depending on the manufacturer and the use. In the chemical industry, it can be used as a catalytic agent to help the reaction go faster. With its properties, it can transform difficult things into desired products.
Although the same name and the business name are different, they refer to the same thing. Just like the ancient things, the names change with the customs, but the quality remains the same. In the study of transformation, it is necessary to understand its various names, so that there can be no misuse, and we can make the best of this thing and contribute to the progress of the industry.

Safety & Operational Standards

2 - Methylbenzenesulfonic acid safety and operating standards
2 - Methylbenzenesulfonic acid, this material has unique characteristics, related to safety and operating standards, must not be ignored.
In the importance of safety, the first protection. Its properties have the ability to corrode. If it touches the body carelessly, it will cause disaster. Therefore, when handling, protective equipment is indispensable. Wear special clothes to prevent its rot; wear tough gloves to prevent its invasion; eye protection glasses are also necessary to prevent it from splashing into the eyes and causing damage to the eyes.
Store in a cool, dry place, avoid heat and open flames. Cover because of heat or open flames, fear unexpected changes. And it needs to be stored separately from alkalis, oxidants, etc. to prevent interaction and cause danger.
As for the operating specifications, the operator must first know the nature and understand the method. When taking it, the action should be slow to prevent splashing. The weighing tool must be accurate and accurate. If it is used in the reaction, temperature control and speed control are essential. If the temperature is too high, the reaction may be excessive; if the rate is out of control, it will also cause accidents.
If there is a leak, do not panic. Cut off the fire source first to avoid fire. When there is a small leak, it can be adsorbed by sand and other materials to collect and deal with it properly. When there is a big leak, quickly evacuate the personnel to a safe place, report it to a professional, and follow their policies.
In short, the safety and operating standards of 2-methylbenzenesulfonic acid are a compulsory course for operators. Strictly abide by its regulations to ensure smooth and safe conditions for people.

Application Area

2-Methylbenzenesulfonic acid is also a chemical substance. Its application field is quite wide. In industry, it is often used as a catalyst to help many chemical reactions proceed, make the reaction smoother and improve efficiency. In the field of organic synthesis, it also plays an important role, can participate in the preparation of many organic compounds, enrich the way of organic synthesis. In the field of medicine, it may have an auxiliary role in the synthesis of some drugs, contributing to the research and development of medicine. And in the manufacture of dyes, it can also play a role, affecting the performance and quality of dyes. With its unique chemical properties, this substance shows value in various application fields and promotes the development of related industries.

Research & Development

I have tasted the field of chemical industry, new products have emerged one after another, 2-Methylbenzenesulfonic Acid this thing, my heart is attached to it, and I have studied it.
Its unique nature, in the way of reaction mechanism and application, has something to study. At the beginning of its research, the data is scarce, the road ahead is unclear, like a night road. However, I am determined to visit the classics, looking for a good recipe, studying day and night, and dare not slack off.
Fortunately, I have obtained something, and I have gradually understood its nature. In the method of synthesis, I have made much progress. And explore its application, and it has potential in various fields. Although the results are initial, I am well aware that this is only the beginning. In the future, we still need to forge ahead, strive for excellence, and hope to expand its use, promote the development of this product, and bloom in the forest of chemical industry, living up to my heart of research.

Toxicity Research

Since modern times, the chemical industry has flourished day by day, and new substances have emerged in large numbers. 2-Methylbenzenesulfonic Acid is also one of them. The toxicity study of this substance is related to people's livelihood and the environment, and cannot be ignored.
Considering the properties of this substance, it may be corrosive to a certain extent, touching the skin, and it may cause burns. If it enters the eyes, it is more harmful. And its volatile gas, if inhaled by the mouth and nose, may also damage the respiratory system.
The study of toxicity is not only about individual harm. In the environment, if this substance is accidentally distributed, or if it pollutes soil and water sources, it will cause ecological changes. Therefore, in order to study the toxicity of this substance, we should start from multiple ends to analyze its metabolism in the living body and investigate its long-term impact on the environment. With the aim of scrutinizing the research in detail, we can clarify the depth of its harm, and make strategies for protection and treatment to ensure the safety of all living beings and the peace of the environment.

Future Prospects

In the future, 2 - Methylbenzenesulfonic Acid is a product whose development can be looked forward to. In the field of chemical industry, the use of this product is gradually expanding. In the way of organic synthesis, it is often a booster, which can promote the speed of reaction and increase the purity of the product.
Looking at the present, although there have been many achievements, there is still progress in the future. Or it can be improved on the process, so that the yield will increase again and the energy consumption will decrease again. It is also expected to open up new fields, such as in material science, to find new uses and help the material performance.
Our scientific researchers should study diligently to start a new chapter in the future development of 2 - Methylbenzenesulfonic Acid, so that this chemical product can bring more benefits to the world.

Where to Buy 2-Methylbenzenesulfonic Acid in China?

As a trusted 2-Methylbenzenesulfonic Acid 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.

Frequently Asked Questions

As a leading 2-Methylbenzenesulfonic Acid 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 main uses of 2-Methylbenzenesulfonic Acid?

2-Methylbenzenesulfonic acid is widely used in various industrial fields.
First, in the field of organic synthesis, it is often used as a catalyst. The art of organic synthesis, in order to make the reaction fast and efficient, the catalyst is indispensable. 2-Methylbenzenesulfonic acid has strong acidity. In many esterification, alkylation, dehydration and other reactions, it can effectively reduce the activation energy of the reaction and promote the reaction to occur easily. For example, in the esterification reaction, alcohol and carboxylic acid want to form esters. Without the help of this catalyst, the reaction rate is slow and the yield is also low. However, by adding an appropriate amount of 2-methylbenzenesulfonic acid, the reaction can proceed smoothly and the yield of the ester can be improved. And compared to other strong acid catalysts, its selectivity is good, which can make the reaction proceed according to the expected path and reduce the generation of side reactions. In fine organic synthesis, this property is particularly critical.
Second, in the pharmaceutical and chemical industry, it is also an important place. Pharmaceutical synthesis is extremely complicated, and it is necessary to precisely control the reaction process and product purity. 2-Methylbenzenesulfonic acid can play a catalytic role in the synthesis of specific pharmaceutical intermediates, helping to form and transform key chemical bonds. Many drug molecules have complex structures, and their synthesis requires multiple steps, each step is related to the quality and efficacy of the final drug. Under suitable reaction conditions, this acid can effectively promote the reaction forward, provide assistance for the preparation of high-quality pharmaceutical intermediates, and then lay the foundation for subsequent drug research and development and production.
Third, it also contributes to the manufacture of surfactants. Surfactants are widely used in various industries such as daily chemicals, textiles, and petroleum. 2-Methylbenzenesulfonic acid can participate in the synthesis process of surfactants, modify and regulate the molecular structure of surfactants, and affect their hydrophilic-lipophilic balance value and other key performance indicators. Surfactants that participate in the synthesis may have better emulsification, dispersion, and solubilization properties, thereby improving the performance of products in practical application scenarios. For example, in detergents, it can enhance decontamination ability and improve emulsion stability in cosmetics.
Fourth, in the dye industry, 2-methylbenzenesulfonic acid is also used. Dye synthesis needs to meet specific color, fastness and other performance requirements. It is used in dye synthesis reactions, or as a catalyst to promote the formation of chromophore groups, or to participate in the regulation of the charge distribution and spatial structure of dye molecules, affecting the color, solubility and dyeing properties of dyes. With its unique chemical properties, bright-colored and good fastness dyes can be prepared to meet the needs of high-quality dyes in textile printing and dyeing and other industries.

What are the physical properties of 2-Methylbenzenesulfonic Acid?

2-Methylbenzenesulfonic acid is one of the organic compounds. Its physical properties are crucial and related to many chemical applications.
Looking at its properties, 2-methylbenzenesulfonic acid is often a white to yellowish crystalline solid at room temperature and pressure, which is easy to identify. Its melting point is in a specific range, about 103-106 ° C. The characteristics of the melting point are of great significance in the purification, identification and phase change of substances under specific temperature conditions. When the temperature rises above the melting point, the substance gradually changes from a solid state to a liquid state. This phase change process is reflected in the heating and melting of chemical operations.
Furthermore, 2-methylbenzenesulfonic acid is soluble in water. This solubility makes it widely used in chemical reactions, substance separation and purification of aqueous solution systems. When dissolved in water, ionization occurs, releasing hydrogen ions, which makes the solution acidic. Because of its acidic nature, it can often be used as a catalyst in organic synthesis to promote many reactions, such as esterification reactions.
In addition, the density of this substance is also an important physical property. Although its specific density value may vary slightly due to measurement conditions, it is roughly within a certain range. The value of density is indispensable in chemical measurement operations involving volume and mass conversion. During storage and transportation, understanding its density can help to rationally arrange the capacity and load capacity of the container to ensure safe and efficient operation. The boiling point of
2-toluenesulfonic acid cannot be ignored. Although the exact boiling point may vary due to factors such as external pressure, under normal pressure conditions, the boiling point is within the corresponding range. The characteristics of the boiling point determine its behavior in separation operations such as distillation and fractionation, which can provide an important basis for the separation and purification of this substance in chemical production.
In summary, the physical properties of 2-methylbenzenesulfonic acid, such as crystal morphology, melting point, solubility, density, and boiling point, play a crucial role in chemical production, organic synthesis, and related scientific research, providing indispensable basic data and theoretical support for various practical applications.

What are the chemical properties of 2-Methylbenzenesulfonic Acid?

2-Methylbenzenesulfonic acid is a kind of organic compound. It has the general nature of acid and can combine with alkali phase to form salt and water. In case of sodium hydroxide, it will neutralize and give 2-methylbenzenesulfonic acid sodium and water.
This substance is quite useful in the field of organic synthesis and is often used as a catalyst. In the esterification reaction, it can promote the combination of carboxylic acid and alcohol phase to form esters. It can increase the reaction rate, but its chemical properties and quality are unchanged before and after the reaction.
2-Methylbenzenesulfonic acid is corrosive. During operation, it is necessary to take care not to let it touch the skin and eyes, otherwise it may cause burns. It is ionizable in water and acidic, and its aqueous solution can turn blue litmus paper red.
And it has a certain stability. In case of hot topic, open flame or strong oxidant, there may be a risk of combustion or explosion. When storing, it should be placed in a cool and ventilated place, away from fire and heat sources, and must be stored separately from oxidants and alkalis. Do not mix storage to avoid unexpected changes. In the process of organic synthesis, the reactions it participates in are often selective, and different products can be obtained due to different reaction conditions, providing assistance for the diversity of organic synthesis.

What are the precautions for 2-Methylbenzenesulfonic Acid in the production process?

2 - Methylbenzenesulfonic acid in the production process, several things should be paid attention to.
The first one is related to its corrosion. 2 - Methylbenzenesulfonic acid has strong corrosion. When handling this substance, it is necessary to wear suitable protective equipment, such as corrosion-resistant gloves, protective goggles, protective clothing, etc., to prevent skin and eye injuries from touching it. If you accidentally touch it, rinse it with a lot of water quickly and seek medical treatment.
For the second time, control its anti-strip. 2 - Methylbenzenesulfonic acid is often a catalyst or reactant for the reaction. During the reaction, it is necessary to strictly follow the process requirements and precisely control the temperature, pressure and reaction parameters. If the temperature is too high, or the reaction is too severe, there is a risk of flushing and explosion; if the temperature is too low, the reaction will be slow and the yield will drop.
Furthermore, heavy storage is safe. It should be stored in a cool, dry and well-ventilated place to avoid fire and heat, and it should be stored separately from alkalis and oxidants to prevent severe reactions caused by mixed storage. The reservoir must also be dense to prevent leakage.
In addition, when disposing of its waste, it must follow environmental regulations. It should not be discarded at will, and it should be collected in qualified places to reduce the pollution of the ring.
Again, in a workshop using 2-methylbenzenesulfonic acid, it is advisable to set up a good ventilation system to drain its volatilization, reduce the concentration of air in the workshop, and reduce the risk to the operator's health. And with fire protection equipment, in case of accidents.
At the end, the operator must receive special training, understand the nature of 2-methylbenzenesulfonic acid, endanger the emergency response law, and be familiar with the rules before acting.

What is the market price range for 2-Methylbenzenesulfonic Acid?

The market price range of 2-methylbenzenesulfonic acid is difficult to determine. The price of the cover often changes for various reasons.
First, the price of the raw material has a great impact. If the price of the raw material used in the synthesis of 2-methylbenzenesulfonic acid rises and falls, the price of 2-methylbenzenesulfonic acid also fluctuates. When the supply of raw materials is abundant and the price is low, the production cost of 2-methylbenzenesulfonic acid decreases, and the price may also decrease; conversely, the scarcity price of raw materials is high, and the price will rise.
Second, the market supply and demand situation is also critical. When the market demand for 2-methylbenzenesulfonic acid is strong, but the supply is limited, the price will rise; if the demand is weak and the supply is excessive, merchants often reduce the price to sell their goods.
Third, the production process and technology are also related. Advanced production processes can reduce costs, improve output and quality, and have an advantage in market competition, and the price may be more flexible.
Fourth, regional factors cannot be ignored. Different places have different prices due to differences in transportation costs and market environments. In places with convenient transportation and mature markets, the price may be relatively stable and reasonable; in remote places, the price may be higher due to increased transportation costs.
According to past market conditions and related information, the price of 2-methylbenzenesulfonic acid per kilogram may range from tens to hundreds of yuan. However, this is only an approximate number, not an exact value. To know the current accurate price, you need to visit the chemical product trading market in real time, consult suppliers or refer to professional industry reports.