P-Methylphenylsulfonic Acid

Lingxian Chemical

Specifications

HS Code	165410
Chemical Formula	C7H8O3S
Molar Mass	172.202 g/mol
Appearance	white to off - white solid
Solubility In Water	soluble
Solubility In Organic Solvents	soluble in polar organic solvents like ethanol
Acidity	strong acid, dissociates in water to release H+ ions
Boiling Point	decomposes before boiling
Melting Point	105 - 107 °C
Odor	odorless or very faint odor
Density	approx. 1.38 g/cm³

Packing & Storage

Packing	1 kg of p - Methylphenylsulfonic Acid packaged in a sealed, corrosion - resistant plastic bag.
Storage	P - Methylphenylsulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances such as strong oxidizing agents. Store in tightly closed containers to prevent moisture absorption and ensure integrity. Avoid storage near reactive chemicals to prevent potential chemical reactions.
Shipping	P - Methylphenylsulfonic Acid is shipped in well - sealed, corrosion - resistant containers. It's transported under strict safety protocols, ensuring separation from incompatible substances to prevent risks during transit.

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General Information

Historical Development

P - Methylphenylsulfonic Acid is a compound of sulfonic acid. At the beginning of its birth, chemists studied and explored its properties and uses. At the beginning, the preparation method was not good, and the yield was quite low, which was only occasionally obtained in the laboratory.
and scientific evolution, various process improvements. Chemists worked hard to optimize the process, so that the yield gradually increased and small-scale production was possible. At that time, this compound was mostly used in specific chemical reactions, which added help to organic synthesis.
Years pass, technology is new, and preparation technology is becoming more and more mature. Large-scale production became possible, and the application field became wider. In many aspects such as industrial manufacturing and material research and development, it has developed its capabilities and made tremendous contributions to the development of the world. From the very beginning, its important position to the present day, its historical evolution, witnessing the prosperity of chemistry and the progress of science and technology.

Product Overview

"Description of p-toluenesulfonic acid"
p-toluenesulfonic acid is an organic compound. Its shape is mostly white crystalline and has strong acidity. It is widely used in the chemical industry and can be used as a catalyst for esterification, hydrolysis and many other reactions. Its effect is remarkable, and it can promote the reaction to proceed efficiently.
In its structure, there are methyl and sulfonic acid groups attached to the benzene ring, which gives it special chemical properties. In industrial production, p-toluenesulfonic acid is often prepared by sulfonation reaction with corresponding raw materials.
In many organic synthesis, it is favored because of its stable acidity and high catalytic activity. However, when using it, it is also necessary to pay attention to its corrosiveness, properly protect it, and operate according to regulations to ensure production safety and product quality.

Physical & Chemical Properties

P - Methylphenylsulfonic Acid, organic compounds are also. Its physical and chemical properties are quite specific. Looking at its shape, at room temperature, it is often crystalline, white in color, shiny, like ice crystals. Its melting point is also fixed, about a certain temperature range, this is its important physical characteristic.
On chemical properties, it is acidic and can neutralize with alkali substances to generate corresponding salts. And in many chemical reactions, it can play a unique role. Because its molecular structure contains specific groups, it can participate in a variety of organic synthesis processes and is commonly used in organic chemistry research and industrial production. In organic solvents, there is also a specific solubility, which is of critical significance in separation, purification and other operations. Its physical and chemical properties are all important content of chemical research, helping us to deeply explore the mysteries of this compound.

Technical Specifications & Labeling

There are chemical products today, called P-Methylphenylsulfonic Acid. In order to clarify its process specifications and identification (product parameters), it must be carefully examined.
Process specifications, the first in the selection of raw materials, need to be carefully selected to ensure purity and no impurities. When reacting, temperature control and speed regulation are the key, and the heat is appropriate to obtain high-quality products. The operation of the equipment during this period should not be ignored, and it should be inspected and repaired frequently to ensure smoothness.
In terms of identification (product parameters), when the purity geometry is clear, the impurity content should be listed in detail. Appearance color, physical state, etc. are also key points, and they should be marked one by one, and there must be no mistakes. In this way, the chemical products can be properly applied to avoid the risk of misuse.

Preparation Method

The method of preparing P-Methylphenylsulfonic Acid is related to the raw materials and production process, reaction steps and catalytic mechanism. The raw materials are often methyl benzene and sulfuric acid, and the two react when heated.
First, an appropriate amount of methyl benzene is added to the special device, and sulfuric acid is gradually added to control its temperature and speed. Sulfuric acid acts as a reactant and catalyst to promote the reaction to be easy. In the reaction step, the methyl position of methyl benzene is combined with the sulfuric acid group of sulfuric acid to produce P-Methylphenylsulfonic Acid.
When reacting, it is appropriate to pay attention to the temperature. If it is too high, side reactions will occur, and the yield will drop. The method of temperature control can be used in a water bath or an oil bath to heat it evenly. Pure P-Methylphenylsulfonic Acid can be obtained by separation and purification after the reaction is completed. In separation, distillation and extraction are used; purification is often by recrystallization.

Chemical Reactions & Modifications

P - Methylphenylsulfonic Acid, it is also a matter of transformation. Its transformation and inversion are important to our researchers.
Its inversion, or combination of substances, or self-decomposition, are all based on transformation. And its properties can be changed due to the change of the parts. For example, the rise and fall of the degree, the amount of energy, can make the direction and nature of the inversion.
In the past, researchers used different methods to explore its inversion, trying to understand the reason of its transformation. There are high-level promotion, and its inversion is accelerated, but the material is also normal. And the amount of energy, the inversion of it, the change of the quality, or the improvement of the activity beyond the previous, or the change of the fixed.
We are still studying it today, hoping to turn it into the secret of anti-sex, so that it can be used for the benefit of the world.

Synonyms & Product Names

"On the same name and trade name of" p-toluenesulfonic acid "
In the field of chemical industry, there is a product name p-toluenesulfonic acid, English is P-Methylphenylsulfonic Acid. It is widely used in the industry. Examine its same name and trade name, it is related to many industries.
Husband with the same name, or because of the chemical naming convention, there are similar structures, and there are also variants, but they are all inseparable from their chemical essence. As for the trade name, merchants have created a lot of names in order to enhance their characteristics and facilitate their marketing. Or depending on the purity and use of the product. For example, if it is of high purity, it is named "refined p-toluenesulfonic acid"; if it is suitable for a specific reaction, it is named "p-toluenesulfonic acid for a certain reaction".
From this perspective, the same name and the trade name, although the title is different, both refer to this thing. For researchers, it is clear that it is different, so that it can be used without error to promote the progress of chemical industry. For businesspeople, making good use of its name can promote the sale of products and promote the prosperity of the industry.

Safety & Operational Standards

"P-Methylphenylsulfonic Acid Product Safety and Operation Specifications"
P-Methylphenylsulfonic Acid, chemical products are also. During its preparation, storage and use, it is necessary to strictly abide by safety and operation specifications to avoid disasters and ensure the safety of people and things.
When preparing, all reagents and instruments should be clean and stain-free. The equipment used must be accurately calibrated to ensure that the measurement is correct. Reaction conditions, such as temperature, pressure, time, etc., must be carefully controlled. If the temperature is slightly poor, the reaction may be biased, the product is impure, and even cause violent reactions, endangering the surrounding environment.
The most important thing to store is the environment. When placed in a cool, dry, well-ventilated place, away from fire and heat sources to prevent it from decomposing or exploding by heat. And it must be stored separately from oxidants, alkalis and other substances to avoid biochemical reactions. Packaging must also be tight to prevent leakage.
As for use, the operator must be familiar with its properties. During handling, in front of protective clothing, such as protective clothing, gloves, goggles, etc., avoid contact with skin and eyes. If you accidentally touch it, rinse it with plenty of water immediately, and seek medical attention as soon as possible. When taking it, the action should be slow, measure it accurately, and seal it after use to prevent it from absorbing moisture and deteriorating.
Furthermore, disposal should not be ignored. It must be properly disposed of in accordance with relevant laws and regulations to prevent environmental pollution.
In short, all the affairs of P-Methylphenylsulfonic Acid are based on safety and standardized operation, so as to ensure that everything goes smoothly and is harmless to the public.

Application Area

"Application field of P-Methylphenylsulfonic Acid"
P-Methylphenylsulfonic Acid, in the field of chemical industry, has a wide range of uses. First, in the process of organic synthesis, it is often used as a catalyst. Because of its acidic properties, it can promote the progress of many reactions, such as esterification reaction, which can accelerate the conversion of reactants and improve the yield.
Furthermore, in the field of pharmaceutical preparation, it is also indispensable. It can help synthesize specific pharmaceutical ingredients, and by virtue of its unique chemical properties, it can accurately construct the molecular structure of drugs, which can contribute to the research and development of medicine.
In the field of materials science, it may be able to participate in the synthesis of polymer materials. Improving the properties of materials, such as stability and solubility, makes them more suitable for different scenarios, which is actually widely used and has far-reaching impact.

Research & Development

Yu Taste is dedicated to the study of P - Methylphenylsulfonic Acid. This compound has unique properties and has great potential in many fields. At the beginning, explore its structure, analyze the composition of its chemical bonds in detail, and observe the delicate arrangement of atoms. Also study its synthesis method, try various paths, and strive for efficient and pure preparation.
In the experiment, record the data in detail to observe the effect of changes in reaction conditions on the product. Temperature, pressure, and proportion of reactants are all studied carefully. After repeated trials, an optimized method is obtained, and the yield is improved.
And consider the application of this product, in chemical production, or can be used as a catalyst to accelerate the reaction process; in material science, or can improve material properties. I will continue to study it with the hope of expanding its application, promoting the development of this field, and contributing to both academia and industry.

Toxicity Research

The toxicity of P - Methylphenylsulfonic Acid, this substance is related to our research. Observe its properties, soluble in water, with acid quality.
Test it with various methods, apply it to mice, and observe its response. If the amount exceeds, it will be seen that the mice are impatient, eat less, and even have body failure. After analysis, this acid may hurt the internal organs of mice, damage their liver function, and make the amount of enzymes different.
And test it with plants, sprinkle this acid on the plant, and its leaves gradually wither and slow down. Cover the metabolism of this acid and hinder its nourishment.
In summary, P - Methylphenylsulfonic Acid is toxic and harmful to animals and plants. Those who study should be careful, and they must follow the rules to prevent it from falling apart, so as not to harm living beings and rings.

Future Prospects

P - Methylphenylsulfonic Acid is becoming more and more important in today's chemical research. Although its basic properties and methods of preparation have been clarified today, there is still a vast future for future development.
Looking at the future, one of them may have made great progress in the synthesis method. Although today's method is feasible, it is the expectation of researchers to seek a simpler, more efficient and more environmentally friendly way. It is hoped that new agents and new methods will be used to reduce its consumption, increase its production, and reduce the impact on the ring.
Second, in the field of application, it will also be expanded. It is now known that it has catalytic power in the digital transformation and reaction, and it will emerge in more special processes in the future, such as in the research of new drugs and the system of materials, etc., for the birth of new materials and the formation of good medicines.
Third, the exploration of its nature does not stop. Expect its nature in a more complex environment, to expand its use, to advance the chemical industry, and to open up new paths. This is the hope of our generation of chemical researchers for the future development of P-Methylphenylsulfonic Acid.

Frequently Asked Questions

What is the chemical structure of P-Methylphenylsulfonic Acid?

P - Methylphenylsulfonic Acid is p-toluenesulfonic acid, and its chemical structure is as follows:
This is an organic compound. At the para-position of the benzene ring, a methyl group ($- CH_ {3} $) is connected to a sulfonic acid group ($- SO_ {3} H $). The benzene ring is a six-membered carbon ring with a conjugated double bond structure. It is a planar hexagonal shape. The bond lengths between the carbon atoms are equal, and both single and double bonds have partial properties. The methyl group is composed of one carbon atom and three hydrogen atoms, and is connected to the counter-carbon atom of the benzene ring by a carbon-carbon single bond. In the sulfonic acid group, the sulfur atom is connected to one double-bonded oxygen atom and two hydroxyl oxygen atoms, and the sulfur atom is also connected to the carbon atom of the benzene ring.
The structure of p-toluenesulfonic acid makes it have some characteristics of the benzene ring, such as aromaticity, which can undergo electrophilic substitution reaction; it is also acidic due to the presence of sulfonic acid groups, which can act as catalysts in many organic reactions. Its acidity is derived from the fact that the hydrogen atom of the hydroxyl group in the sulfonic acid group is easy to dissociate, forming hydrogen ions ($H ^{+}$）， showing the commonality of acids. This structural property makes it widely used in organic synthesis, catalytic reactions and other fields.

What are the main uses of P-Methylphenylsulfonic Acid?

P-Methylphenylsulfonic Acid has a wide range of uses and is used in various fields of industry and scientific research.
First, it is a commonly used catalyst in the field of organic synthesis. Such as esterification reaction, it can promote alcohol and carboxylic acid to form esters. In the synthesis of acetals and ketals, it can also play a catalytic role, help the reaction proceed smoothly, and improve the reaction rate and yield. Because of its acidic nature, it can activate the reactants, reduce the activation energy of the reaction, and make the reaction conditions tend to be milder.
Second, it is also important in the pharmaceutical and chemical industries. In some drug synthesis processes, it can be used as a catalyst or participate in the preparation of intermediates. With its acidic properties, it helps specific chemical reactions to achieve the construction of drug molecules, which is of great significance to pharmaceutical research and development and production.
Third, in the dye industry, it can be used as an auxiliary agent. Helps dyes better adhere to fabrics, enhance dyeing effect, make dyeing more uniform and firm, and improve the application performance of dyes.
Fourth, in the petrochemical field, p-toluenesulfonic acid is also useful. In the production and refining process of some petroleum products, it can participate in related chemical reactions, help improve product quality, and optimize production processes.
All of these, p-toluenesulfonic acid is indispensable in many industries, and is also an important chemical substance for promoting industrial development and scientific research progress.

What are the physical properties of P-Methylphenylsulfonic Acid?

P-toluenesulfonic acid is also an organic compound. It has many physical properties and is quite related to chemical industry.
Looking at its properties, under normal conditions, p-toluenesulfonic acid is a white needle-like or powdery solid, which is very soluble in water, alcohol and ether solvents. This solubility makes it easily dispersed in many reaction systems, laying the foundation for the smooth development of the reaction.
The melting point is about 103-105 ° C. The melting point is the inherent characteristic of the substance. At this temperature, p-toluenesulfonic acid gradually melts from a solid state to a liquid state. This point is of great significance in the separation, purification and control of reaction conditions.
As for the boiling point, it is about 140 ° C (at 2.67kPa). The characteristics of the boiling point are related to the gasification temperature of a substance under a specific pressure. In the distillation and fractionation of chemical production, the boiling point data of p-toluenesulfonic acid is a key guide for separating mixtures and obtaining pure products.
p-toluenesulfonic acid is still hygroscopic. Because it is easy to absorb moisture from the air, it is necessary to pay attention to the drying of the environment when storing to prevent it from affecting the quality or even deteriorating due to moisture absorption.
Its density is also one of the important physical properties, about 1.24g/cm ³. Density is an indispensable consideration in the measurement of substances, the setting of mixing ratios, and the design and operation of related reaction equipment.
In summary, the physical properties of p-toluenesulfonic acid, such as its white needle-like or powdery form, solubility, specific melting point, boiling point, hygroscopicity, and density, play a key role in chemical synthesis, pharmaceutical manufacturing, coating production, and other fields, providing the necessary basis for the implementation and optimization of many processes.

What is the preparation method of P-Methylphenylsulfonic Acid?

To prepare p-toluenesulfonic acid, the method is as follows:
Take toluene as the starting material, which is a common hydrocarbon in organic chemistry. Place toluene in an appropriate reaction vessel, and use concentrated sulfuric acid as the sulfonating agent, and the two are compatible in an appropriate ratio. This reaction needs to be carried out under specific temperature conditions, generally heated to about 100-150 ° C. In this temperature range, a sulfonation reaction occurs between toluene and concentrated sulfuric acid. During the
reaction, the sulfonic acid group (-SO-H) in the sulfuric acid replaces the hydrogen atom at the methyl para-position on the toluenesulfenyl ring, and goes through a series of complex chemical changes to gradually form p-toluenesulfonic acid. It is necessary to pay attention to the temperature control of the reaction process. If the temperature is too high, it may cause side reactions and cause the product to be impure; if the temperature is too low, the reaction rate will be slow and take a long time.
When the reaction reaches the expected level, the product may contain impurities such as unreacted raw materials and by-products. In order to obtain pure p-toluenesulfonic acid, it is necessary to perform separation and purification steps. It can be cooled first to crystallize part of the product, followed by filtration to separate the crystal and the mother liquor. Then the crystal is recrystallized with an appropriate solvent to further remove impurities and improve the purity of the product. After multiple recrystallization and drying treatments, pure p-toluenesulfonic acid can finally be obtained. In this way, the method of preparing p-toluenesulfonic

P-Methylphenylsulfonic Acid in storage and transportation

P-methylbenzenesulfonic acid is also an organic compound. When storing and transporting, many matters must be paid attention to.
Its properties are corrosive, and the storage place must be dry, cool and well ventilated. If placed in a humid place, it is easy to interact with water vapor, or cause quality changes, and will also exacerbate corrosion to the storage container. The container used should be made of acid-resistant materials, such as specific plastics or special metal containers, to prevent leakage and corrosion.
When transporting, it is necessary to follow the regulations of hazardous chemicals. The packaging must be stable to resist the bumps and vibrations during transportation, so as to avoid package damage and leakage of chemicals. The escort should be familiar with its physical and chemical properties and emergency handling methods.
Furthermore, P-methylbenzenesulfonic acid is easily decomposed when heated, or harmful gases are generated. Therefore, when storing and transporting, it should be kept away from fire and heat sources, and away from direct sunlight. In high temperature environments, its stability plummets, which not only affects its own quality, but also may cause safety risks.
In addition, the storage place should be stored separately from oxidants and alkalis, etc., and must not be mixed. Because it encounters with oxidants, or reacts violently; when it comes into contact with alkalis, neutralization will occur, which will damage its original properties.
In short, the storage and transportation of P-benzenesulfonic acid must strictly abide by regulations and operate cautiously to ensure its safety and avoid harm.