4-Toluenesulfonic Acid Monohydrate

Lingxian Chemical

Specifications

HS Code	519433
Chemical Formula	C7H10O4S
Molar Mass	190.217 g/mol
Appearance	white crystalline solid
Odor	odorless
Solubility In Water	soluble
Melting Point	96 - 99 °C
Boiling Point	decomposes
Density	1.24 g/cm³
Acidity	strong acid
Pka	-2.8
Application	used as a catalyst in organic synthesis

Packing & Storage

Packing	500g of 4 - Toluenesulfonic Acid Monohydrate packaged in a sealed plastic bag.
Storage	4 - Toluenesulfonic Acid Monohydrate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in tightly sealed containers to prevent moisture absorption and contamination. This helps maintain its chemical stability and reduces the risk of hazardous reactions.
Shipping	4 - Toluenesulfonic Acid Monohydrate is shipped in well - sealed containers to prevent moisture absorption and contamination. It must comply with chemical transportation regulations, ensuring safe transit to its destination.

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General Information

Historical Development

4-Toluenesulfonic acid monohydrate is a very important product in the field of chemical industry. Tracing back to its origin, people did not study chemistry in depth at the beginning, and their understanding of it was still shallow. However, with the passage of time, all the wise men devoted themselves to exploring and gradually understood its properties. In the past, the experimental conditions were scarce, and it was difficult to study this thing, but the ancestors persevered and studied it unremittingly. Since the gradual rise of organic chemistry, the analysis of its structure and characteristics has become more and more clear. Among many reactions such as catalysis, its effectiveness is prominent. From the initial ignorance to the current clarity of its many wonders, it all depends on the research and accumulation of chemists of all dynasties, so that 4-toluenesulfonic acid monohydrate can play a great role in chemical industry.

Product Overview

4-Toluenesulfonic acid monohydrate is a commonly used reagent in organic chemistry. Its color is white, crystalline, and strongly acidic. It is often used as a catalyst in many organic synthesis reactions.
This compound can effectively promote the combination of acid and alcohol phase in the esterification reaction to form esters, improving the reaction rate and yield. In the dehydration reaction, it can help organics dehydrate water molecules and achieve specific transformations.
It has good stability and is easy to store and use. However, due to its strong acidity, it is necessary to be careful when using it to prevent it from contacting the skin, eyes, etc., causing burns. When using, follow the correct experimental procedures to ensure experimental safety and accurate results. Adhering to a scientific and prudent attitude, the rational use of 4-toluenesulfonic acid monohydrate can be used in chemical research and production to develop its effectiveness.

Physical & Chemical Properties

4-Toluenesulfonic acid monohydrate, unique in nature. Its shape is often crystalline, its color is close to white, and it has a bright luster. Smell, slightly sour gas.
In terms of its quality, it melts, about 96 to 99 degrees Celsius, which is a sign of state change. It is easily soluble in water, like the fusion of water and salt, because the sulfonic acid group is hydrophilic. And in organic solvents, such as alcohols and ethers, it also has solubility and can be miscible.
Its chemical activity is active, and the sulfonic acid group is strongly acidic. It can react with bases to form salts and water, similar to the principle of acid-base neutralization. In the process of organic synthesis, it is often used as a catalyst to promote the speed of various reactions, such as the formation of esters and the combination of ethers. With its acidic properties, it can activate the substrate and reduce the energy barrier of the reaction.

Technical Specifications & Labeling

Today there are 4 - Toluenesulfonic Acid Monohydrate products, and its technical specifications and identification (product parameters) are the key. This product needs to have a specific purity, and the impurity content should be strictly controlled within a certain range. The appearance should show a specific color and shape before it can be matched to the specifications. Its physical and chemical properties, such as melting point, boiling point, etc., must be accurately determined for identification. The packaging of the product also needs to be clearly marked with the name, content, batch and other parameters in accordance with regulations, so as to ensure that its quality and application specifications can be properly used in various fields of chemical industry.

Preparation Method

This 4 - Toluenesulfonic Acid Monohydrate is made today. The raw materials and production process, reaction steps and catalytic mechanism are quite critical. Take the crude product of p-toluenesulfonic acid and dissolve it in an appropriate amount of distilled water. This is the initial step. When it is fully dissolved, move the solution to the crystallization apparatus.
Control the temperature at a low temperature, about 0-5 degrees Celsius, so that it crystallizes slowly. This process requires patience, and the crystals gradually emerge. When the crystallization is complete, use a Brinell funnel to filter to obtain the first product.
Recrystallize the first product in an alcohol solvent, and this step can improve its purity. Control the temperature near the boiling point of the solvent to fully dissolve the first product, then cool down and crystallize, and then pump and filter.
As for the catalytic mechanism, in this process, temperature and solvent properties are affected. Temperature is moderate, molecular activity is increased, and the reaction speed is orderly. Solvent adaptation can promote molecular dispersion and make the reaction uniform. After these steps, a refined 4-Toluenesulfonic Acid Monohydrate can be obtained.

Chemical Reactions & Modifications

4-Toluenesulfonic acid monohydrate, in the field of chemical industry, its chemical reaction and modification are quite important. In the past research, its chemical reaction was in the process, and the catalytic ability was obvious, but there were also deficiencies.
Looking at its chemical reaction, it is often the reverse of acid catalysis. Although the speed is acceptable, the selectivity is not perfect, resulting in more by-products and difficult to obtain pure products. And it is harsh on anti-strips, and it is not easy to control temperature and pressure.
On its modification, if you want to add selectivity and activity, you can use it for various techniques. Composite materials are made with carriers, hoping to distinguish their active position and selectivity. And adjust their junctions, change the genus of crystal forms, and seek the progress of chemistability.
Although the research has made progress, it still needs to be further explored. It is difficult to break down in the future, so that 4-toluenesulfonic acid monohydrate can be used in the chemical industry to develop greater energy and achieve better results.

Synonyms & Product Names

4-Toluenesulfonic acid monohydrate, which has a wide range of uses. Its synonymous name is also known as p-toluenesulfonic acid monohydrate.
This product is often an important raw material in various fields of chemical industry. It is active and has many achievements in organic synthesis. It can be used as a catalyst to accelerate the process of many reactions and make the reaction more smooth.
In the trade between merchants, 4-toluenesulfonic acid monohydrate is valued by many industry players because of its specificity. Because the synonymous name refers to the same thing, the industry players understand that it is the same thing when purchasing and operating. Or used in the manufacture of fine chemicals, or engaged in the research of the pharmaceutical industry, all rely on its strength to achieve its success.

Safety & Operational Standards

4 - Safety and Operation Specifications of Toluenesulfonic Acid Monohydrate
4 - Toluenesulfonic Acid Monohydrate is a compound commonly used in chemical research. During experimental operation, safety bears the brunt, and many norms must be strictly adhered to.
Its properties are corrosive and can cause burns when it touches the skin. Therefore, when handling this substance, protective equipment must be worn, such as acid and alkali-resistant gloves, goggles, and wearing laboratory clothes, and comprehensive protection to prevent accidental contamination.
It is essential to operate in a well-ventilated place. Because it dissipates air, or irritates the respiratory tract. If the concentration is accumulated to a certain level in a confined space, it will increase the danger. The use of a fume hood can quickly expel harmful gases and ensure the well-being of the experimenter.
When storing, there are also regulations. It should be placed in a cool, dry and ventilated place, away from fire and heat sources. Do not mix with alkalis, oxidants, etc., to prevent chemical reactions and cause danger.
When taking it, the action should be steady and accurate. Take it with a clean and dry appliance to avoid contamination. After use, seal it properly, and record the dosage and remaining amount.
If it is accidentally contaminated on the skin, rinse it with plenty of water quickly, and then seek medical treatment. If it enters the eye, it is especially necessary to rinse it immediately and send it to the hospital urgently. If there is a leak, immediately evacuate unrelated personnel and isolate the scene. Small leaks should be adsorbed by sand, dry lime, etc., collected and disposed of; large leaks should be contained by building embankments or digging holes, transferred to special containers by pump, and disposed of according to regulations.
In summary, although 4-Toluenesulfonic Acid Monohydrate is beneficial for scientific research, its safety and operation standards should not be ignored, so as to ensure the smooth experiment and the safety of personnel.

Application Area

4-Toluenesulfonic acid monohydrate has a wide range of uses. In the field of organic synthesis, it is often used as a catalyst. Taking esterification as an example, it can promote the efficient formation of alcohols and carboxylic acids into esters, improving the reaction rate and yield. In alkylation reactions, it can also play a catalytic role, helping alkyl groups to be introduced into target molecules smoothly.
Furthermore, in the pharmaceutical industry, its use cannot be underestimated. It can participate in the preparation of a variety of drug intermediates, and with its unique chemical properties, it promotes the reaction process and ensures the accuracy and efficiency of drug synthesis. In some chemical production processes, 4-toluenesulfonic acid monohydrate can also be used to adjust the pH of the reaction system, optimize the reaction environment, and then have a positive impact on the selectivity and activity of the reaction, making the production process more stable and controllable.

Research & Development

4-Toluenesulfonic acid monohydrate, which is of great significance in our field of chemical research. Its research and development are related to many aspects.
We have investigated its physicochemical properties through repeated experiments. It exhibits unique efficiency in catalytic reactions and can change the rate and path of chemical reactions. In the field of organic synthesis, it is often used as a high-efficiency catalyst to help various reactions proceed smoothly.
In addition, the research and development process is also the key. Strive to optimize the preparation process, improve yield and reduce costs. After unremitting research, some progress has been made, but there is still room for improvement.
Looking to the future, we will continue to explore in depth. It is hoped to expand its application field, play a greater role in more chemical reactions and industrial production, and promote the progress and development of the chemical field.

Toxicity Research

Guanfu 4-Toluenesulfonic Acid Monohydrate This substance, the investigation of its toxicity, is the most important thing for our chemical researchers.
This substance often takes a certain shape in appearance, and in experimental investigation, it is necessary to observe its properties in detail. If you accidentally touch it, or it may hurt the skin, eyes and eyes. If you enter through the mouth and nose, you may also endanger the viscera.
Test it in ancient ways, apply it to certain objects, and observe its changes. Observe the image of it mixed with other things. See it in a specific environment, or cause severe melting, or cause damage to surrounding objects.
Therefore, when studying this substance, you must follow strict regulations and prepare for good protection. Do not be slow, in order to protect the safety of the body, and explore its true meaning, for the advancement of learning, the prosperity of the industry.

Future Prospects

I have studied 4 - Toluenesulfonic Acid Monohydrate. It is unique in nature, and it may be a key agent in chemical industry. Although its many characteristics are known today, the future development still has a great potential.
In the future, I hope to be able to make the preparation method more refined, reduce its cost, raise its purity, and make it accessible to all industries. In the field of application, I also hope to open up new avenues. Or it can be used in the production of emerging materials to make the materials have extraordinary properties; or in catalytic reactions, to develop miraculous effects and increase the effect of reactions.
I believe that with time and unremitting research, 4 - Toluenesulfonic Acid Monohydrate will be able to shine brightly in the field of chemical industry, adding majestic power to the future, and achieving unfinished business, which is the wish of our researchers.

Frequently Asked Questions

What are the main uses of 4-toluenesulfonic acid monohydrate?

4-Ethylhexanoic acid monohydrate has a wide range of main uses. In the field of industry, it is often used as a raw material for the preparation of various ester compounds. Esters play a key role in coatings, inks, adhesives and other industries. Taking coatings as an example, the prepared esters can impart good film formation, gloss and durability to coatings, so that after the coating is applied to the surface of objects, it can form a strong and beautiful protective film to protect objects from external environment erosion.
In the field of organic synthesis, 4-ethylhexanoic acid monohydrate is also an important intermediate. Through a series of chemical reactions, it can be converted into a variety of organic compounds with specific functions. For example, in the pharmaceutical industry, in the synthesis path of some drugs, this is the starting material, and through delicate reaction design and condition control, pharmaceutical ingredients that have curative effects on specific diseases can be obtained.
In addition, in some catalytic reaction systems, 4-ethylhexanoic acid monohydrate can act as a co-catalyst. It can adjust the rate and selectivity of the catalytic reaction, and promote the reaction to proceed more efficiently and accurately in the direction of the desired product. This helps to improve production efficiency and reduce production costs, which is of great significance in chemical production practice.
In the field of materials science, it can participate in the synthesis process of some polymer materials. By polymerizing with other monomers, polymer materials are endowed with specific properties, such as improving their flexibility and solubility, thus expanding the application range of polymer materials and playing an active role in the production of plastic products and fiber products.

What are the physical properties of 4-toluenesulfonic acid monohydrate?

4-Ethyl octanoic acid monohydrate is a genus of organic compounds. Its physical properties are quite unique and have certain significance in many fields. The following is the detailed description of Jun.
Looking at its properties, under room temperature and pressure, 4-ethyl octanoic acid monohydrate is often colorless to light yellow liquid, uniform and clear in texture, like a quiet shallow stream. Its appearance is pure in color, with little variegation. This pure state lays the foundation for its application in some application scenarios that require strict color and luster.
Smell its smell, with a weak and specific smell. This smell is neither strong and pungent nor fragrant, but unique and indescribable, but not annoying. This weak odor does not cause excessive interference to the working environment and the user's sense of smell in many industrial and scientific applications.
When it comes to solubility, this compound has a certain solubility in water. Due to its characteristics of monohydrate, water molecules interact with 4-ethyl octanoic acid molecules, so that some of them can be integrated into the water environment. However, its solubility is not unlimited, only up to a certain limit. At the same time, in organic solvents, such as ethanol, ether and other common organic solvents, its solubility is better. This property allows for the flexibility to choose suitable solvents according to needs during related chemical reactions and substance extraction operations to achieve the desired reaction or separation effect.
When it comes to melting point and boiling point, the melting point is low, and it can be converted from solid state to liquid state under specific temperature conditions. The boiling point is relatively high, and a higher temperature is required to convert it from liquid to gaseous. The characteristics of this melting boiling point enable it to maintain a stable liquid state in a normal temperature environment, providing convenience for practical applications.
As for the density, the density of 4-ethyl octanoic acid monohydrate is slightly higher than that of water. When mixed with water, it will exhibit stratification and other phenomena according to its density characteristics. This characteristic may play a key role in some scenarios involving the separation and identification of substances.
In summary, the physical properties of 4-ethyl octanoic acid monohydrate, including its appearance, odor, solubility, melting point, and density, together shape its unique physical properties, providing a wealth of possibilities and bases for its applications in chemical industry, scientific research, and many other fields.

What should be paid attention to when storing 4-toluenesulfonic acid monohydrate?

For 4-ethyl octanoic acid monohydrate, when storing, many matters must be paid attention to.
The properties of this object are related to the storage place. It should be placed in a dry, cool and well-ventilated place. If it is in a humid place, water vapor is easy to contact it, or its properties may change, affecting its quality. A cool place can avoid qualitative changes caused by excessive temperature. Well-ventilated, it can circulate the surrounding air to avoid the accumulation of harmful gases in the closed space.
also pay attention to storage devices. It is appropriate to choose a material adapter. If the material of the appliance is in phase with 4-ethyl octanoic acid monohydrate, or a chemical reaction occurs, it will damage its essence. For example, store it in an improper metal container, or cause metal ions to dissolve into it and contaminate its purity. Therefore, choose a container suitable for glass, plastic and other materials to ensure its performance.
Furthermore, the storage place should be away from fire and heat sources. 4-Ethyl octanoic acid monohydrate, or flammable, if it is near fire and heat sources, in case of open flame or hot topic, there is a risk of combustion or explosion, endangering the safety of the surrounding.
In addition, it needs to be separated from oxidants, acids, alkalis and other substances. Because of its chemical properties, contact with them can easily cause chemical reactions, or cause products to be impure, or produce violent reactions, resulting in danger.
During storage, it needs to be checked regularly. Check whether its appearance has changed and whether its packaging is in good condition. If there is any abnormality, dispose of it as soon as possible to avoid affecting its quality and preventing harm due to leakage. In this way, 4-ethyl octanoic acid monohydrate can be properly stored to ensure its performance and avoid disasters.

What is the production method of 4-toluenesulfonic acid monohydrate?

The preparation method of 4-methyl orange test solution monohydrate is as follows:
First take p-aminobenzenesulfonic acid, place it in an appropriate amount of warm sodium hydroxide solution, stir to dissolve it. This step is designed to allow p-aminobenzenesulfonic acid to react with sodium hydroxide to form p-aminobenzenesulfonic acid sodium salt to increase its solubility in water.
After complete dissolution, cool the solution to room temperature. Another sodium nitrite is taken and dissolved in an appropriate amount of water to make a sodium nitrite solution. Under constant stirring, the sodium nitrite solution is slowly dropped into the alkaline solution of p-aminobenzenesulfonic acid. This process requires strict temperature control, generally maintained at a low temperature environment, such as between 0-5 ° C, to ensure that the diazotization reaction can proceed smoothly and generate diazonium salts. This diazotization reaction is a key step, and the properties of diazonium salts are relatively active. After
, take N, N-dimethylaniline and slowly add it to the above diazonium salt solution, while continuing to stir, the solution will gradually change color. In this step, a coupling reaction occurs, and the diazonium salt interacts with N, N-dimethylaniline to form the embryonic structure of methyl orange.
After the reaction is completed, an appropriate amount of ethanol can be added to the solution to promote the precipitation of the product methyl orange test solution monohydrate in the form of crystals. Then a filtration operation is carried out to separate the crystalline product. The crystals are washed with a small amount of ethanol to remove possible residual impurities.
Finally, the washed crystalline product is dried at a suitable temperature to obtain a pure 4-methyl orange test solution monohydrate. The whole preparation process requires fine control of the conditions of each step, including temperature, reagent dosage and addition sequence, to ensure the quality of the product.

What are the safety precautions when using 4-toluenesulfonic acid monohydrate?

4-Methylimidazole acetic acid monohydrate is a chemical substance, and many safety precautions need to be taken when using it.
First, protection is essential. Those who use this substance must wear appropriate protective equipment. Protective clothing can protect against its harm to the body and skin; protective gloves are worn on the hands to prevent the skin from being invaded; protective glasses or masks are worn on the face to protect the eyes from splashing damage. Because of its irritating nature, careless contact can cause skin discomfort and eye tingling.
Second, ventilation is the most important. Make this substance in a well-ventilated place. If it is in a confined space, its volatile gas accumulates and inhaled into the human body, which can damage health, cause respiratory discomfort, and even cause more serious diseases. Therefore, it is very important to have ventilation equipment to maintain air circulation and reduce the concentration of harmful gases.
Third, be careful with storage. When stored in a cool, dry and ventilated place, away from fire and heat sources. The properties of this substance may change due to changes in temperature and humidity, improper storage, or deterioration, and increase safety risks. It also needs to be stored separately from oxidants, acids, alkalis, etc., and mixed storage is prone to chemical reactions, leading to dangerous accidents.
Fourth, the rules of operation. The operation process must be rigorous and meticulous to avoid spilling and leakage. In case of leakage, take emergency measures quickly. Small leaks can be mixed with sand, dry lime or soda ash and collected in a clean, covered container. If there is a large amount of leakage, it is necessary to build an embankment or dig a pit to contain it, transfer it to a tanker or a special collector with a pump, and recycle it or transport it to a waste disposal site for disposal.
Fifth, know first aid. If you accidentally come into contact with the human body, take first aid measures immediately. If you touch the skin, rinse it with a large amount of flowing water immediately; splash your eyes, lift your eyelids, rinse with flowing water or normal saline, and seek medical attention. If you inhale by mistake, leave the scene to a fresh air place quickly to keep the respiratory tract unobstructed. If you have breathing difficulties, give oxygen, stop breathing and heartbeat, then perform cardiopulmonary resuscitation and seek medical attention. Those who eat by mistake, drink enough warm water to induce vomiting, and also need medical attention.