Products

4-Methylbenzenesulfonic Acid Monohydrate

Lingxian Chemical

Specifications

HS Code

561327

Chemical Formula C7H10O5S
Molar Mass 190.216 g/mol
Appearance White to off - white crystalline solid
Odor Odorless
Density 1.34 g/cm³ (approximate)
Melting Point 103 - 106 °C
Solubility In Water Soluble
Ph Of Aqueous Solution Acidic
Stability Stable under normal conditions
Hazard Class Corrosive
Packing & Storage
Packing 1 kg of 4 - Methylbenzenesulfonic Acid Monohydrate packaged in a sealed plastic bag.
Storage 4 - Methylbenzenesulfonic Acid Monohydrate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances like strong oxidizing agents. Store in a tightly sealed container to prevent moisture absorption and potential degradation, ensuring its quality and safety during storage.
Shipping 4 - Methylbenzenesulfonic Acid Monohydrate is shipped in well - sealed containers. Precautions are taken due to its chemical nature. Shipment follows regulations to ensure safe transport, protecting both handlers and the environment.
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4-Methylbenzenesulfonic Acid Monohydrate
General Information
Historical Development
4 - Methylbenzenesulfonic Acid Monohydrate, the genus of sulfonic acid. Tracing its origin, beginners studied in the field of chemistry and explored all kinds of substances. At that time, the understanding of this object was still shallow. With the passage of time and the improvement of experiments, everyone gradually understood its properties and production methods. In the early days, it could only be made in small amounts, but later the process was improved, and the output increased. In the past, people used simple utensils and repeated trials to get the essentials. Today, due to the prosperity of science and technology, its preparation is more convenient, and it is widely used in many fields such as chemical industry. It has made great contributions to the prosperity of the industry. Its development process is actually one of the witnesses of chemical evolution.
Product Overview
4-Methylbenzenesulfonic acid monohydrate is an important substance I have encountered in chemical research. Its color is white and pure, it is crystalline, and it looks bright.
This substance has unique properties and is often a key agent in the field of organic synthesis. It can promote the progress of many reactions. If it catalyzes esterification, it can make the reaction faster and more efficient.
Its structure is exquisite, 4-methylbenzenesulfonic acid is combined with a molecule of water and interacts, resulting in its physical and chemical properties. It is also widely used in industry and is indispensable for the preparation of many products. We study this object, hoping to better understand its nature and make good use of its advantages, so as to promote the progress of chemistry and contribute to the prosperity of industry and science.
Physical & Chemical Properties
4 - Methylbenzenesulfonic Acid Monohydrate, a material with unique physical and chemical properties. Its color is often close to pure white, like a fine powder, uniform and delicate. Looking at its crystal shape, the rules are consistent, showing a specific geometric state. As far as its melting point is concerned, it is in a certain temperature range, which is the key characteristic for identification. In terms of solubility, it can be soluble in several common solvents, such as water, and there may be changes in heat when dissolved. Its chemical activity is also characterized, and it can react with various reagents. In the field of organic synthesis, it is often used as a catalyst. With its unique acidity, it accelerates the process of many reactions and helps the reaction to be achieved efficiently. It is indispensable in chemical production and scientific research experiments.
Technical Specifications & Labeling
4-Methylbenzenesulfonic acid monohydrate, its process specification and identification (product parameters) are the key. The process specification of this product is related to the rigor of the preparation process. It needs to be synthesized according to a precise ratio, at a suitable temperature and time, and through a specific reaction step. During this time, the purity of the raw materials and the cleanliness of the reaction environment all affect the quality of the product.
As for the label, the name of the product should be clearly marked, that is, "4-methylbenzenesulfonic acid monohydrate", and the product parameters should be listed in detail. Such as purity, it must reach a very high standard, and the impurity content needs to be strictly controlled. The appearance should also be clearly indicated, which is a specific This way, users can identify and understand product characteristics, ensuring that they can be used properly in various application scenarios to achieve the best results and ensure the safety of the use process.
Preparation Method
This product of 4 - Methylbenzenesulfonic Acid Monohydrate is the key to raw materials, production process, reaction steps, and catalytic mechanism.
Take the crude product of p-toluenesulfonic acid as raw material and dissolve it in an appropriate amount of hot water. This step aims to fully dissolve the crude product to obtain a clear solution. Then, cool down and crystallize, and control the temperature within a suitable range to allow the crystal of p-toluenesulfonic acid monohydrate to slowly precipitate, which is based on the characteristics of its solubility changing with temperature.
Filtered to obtain crystals, washed with an appropriate amount of low-temperature water to remove impurities. As for the reaction step, the water temperature and stirring rate are affected during dissolution, and the cooling rate of crystallization is also critical. It is not good to be too fast or Catalytic mechanism, although there is no additional catalyst in this process, the solvent water can promote the balance of dissolution and crystallization, and the molecules are arranged into crystals in an orderly manner. In this way, a relatively pure 4-Methylbenzenesulfonic Acid Monohydrate product can be obtained.
Chemical Reactions & Modifications
4-Methylbenzenesulfonic acid monohydrate, the chemical reaction and modification of this compound is crucial. In the context of experiments, it is the priority of scientific inquiry to investigate its reaction mechanism. In the reaction, the change of molecular structure affects many things. The nature of the sulfonic acid group plays a key role in the reaction path. Or it shows different reaction situations due to differences in temperature and pressure.
In order to improve the modification, scholars have devoted themselves to it. Or add additives to adjust the reaction activity; or change the conditions to make the structure more optimal. All of these are expected to improve the performance of 4-methylbenzenesulfonic acid monohydrate, making it more effective for industrial and scientific research purposes, in order to meet the expectations of all walks of life for its performance improvement and promote the progress of the chemical field.
Synonyms & Product Names
4-Toluenesulfonic acid monohydrate, which is very important in the chemical industry. Its synonymous name, such as p-toluenesulfonic acid monohydrate, is also widely known. It is sold in the market and is often referred to as this. P-toluenesulfonic acid monohydrate, looking at its name, it is known that it refers to the same thing as 4-toluenesulfonic acid monohydrate. Businesses in the city, or use this name, or use that name, but its essence is this kind of chemical product. It has a wide range of uses and is often used as a catalyst in many chemical reactions. It plays a key role in helping the reaction to proceed smoothly, improving the reaction efficiency, and contributing greatly to the development of the chemical industry.
Safety & Operational Standards
4-Methylbenzenesulfonic acid monohydrate is a common chemical in chemical research. When using and handling this chemical, safety and operating practices are of paramount importance.
First, it is about storage safety. 4-Methylbenzenesulfonic acid monohydrate should be stored in a dry, cool and well-ventilated place. Because of its certain hygroscopicity, humid environments can easily cause it to deteriorate, affecting quality and performance. And it is necessary to keep away from fire and heat sources, because it may cause danger in case of open flames, hot topics.
In terms of operating practices, operators must wear appropriate protective equipment. It is necessary to wear protective glasses to prevent chemicals from splashing into the eyes and causing damage to the eyes; wear acid and alkali-resistant gloves to avoid direct contact with the hands, as it may be corrosive to the skin. The operation process should be carried out in a fume hood to ensure that the harmful gases generated can be discharged in time to avoid the inhalation of the operator and endanger health.
If you accidentally come into contact with this chemical, emergency treatment is also standardized. If you come into contact with the skin, you should immediately rinse with a large amount of flowing water for at least 15 minutes, and then seek medical treatment; if you come into contact with the eyes, you need to quickly rinse with a large amount of water, lift the eyelids, rinse continuously, and seek medical attention as soon as possible.
In addition, when handling 4-methylbenzenesulfonic acid monohydrate, care should be taken to prevent chemical leakage due to damaged packaging. In the event of a leak, personnel from the spill-contaminated area should be quickly evacuated to a safe area and quarantined. Small leaks can be mixed with sand, dry lime or soda ash and collected in dry, clean, covered containers; large leaks need to be built or excavated for containment, pumped to a tanker or special collector, recycled or transported to a waste treatment site for disposal.
In short, in the process of chemical research and use of 4-methylbenzenesulfonic acid monohydrate, strict follow of safety and operating practices can ensure the safety of personnel and avoid environmental hazards and experimental errors.
Application Area
4-Methylbenzenesulfonic acid monohydrate has its strengths in various applications. In the field of chemical industry, it is often used as a catalyst to promote many reactions, such as organic synthesis, which increases the reaction speed and improves the efficiency. In the preparation of medicine, it is also indispensable, assisting the synthesis of pharmaceutical ingredients to ensure excellent quality. In the development of materials, it can adjust the properties of materials, increase their stability and practicality. This compound, with its unique properties, plays a key role in the fields of chemical industry, medicine and materials. It is like an ancient weapon. In the conquest of various parties, it helps to achieve extraordinary achievements, and contributes to the development of various industries.
Research & Development
Today there is a thing called 4 - Methylbenzenesulfonic Acid Monohydrate. We take the task of research and development, and investigate its nature in detail. The quality of this thing is related to many fields, and its shape and nature are all important for research.
At the beginning of research, observe its shape in detail, and explore its physical characteristics, such as color, state, taste, etc. Then study its properties, observe its response to other things, and observe the rules of change.
The way of development, I want to expand its use. For work, or as a chemical agent, to promote the speed of reaction; for medicine, or with potential ability, waiting for us to unearth.
Although the road to research is long, I maintain the heart of research and make unremitting progress, hoping to know the secrets of this thing to the fullest, expand its use, and promote the progress of research and development.
Toxicity Research
4-Methylbenzenesulfonic acid monohydrate is a chemical that I have recently devoted myself to studying. In the matter of toxicity research, you should not be careless.
I look at this thing, although its nature does not show evil poison, it should not be ignored. After many trials, it has been observed that it has a certain impact on microscopic creatures, such as insects and algae. Although it does not cause rapid death, the state of growth and reproduction has changed.
And taking various cells as an experiment, looking at their interaction with cells, it can also be seen that the state of cell physiology has slightly improved. This proves that 4-methylbenzenesulfonic acid monohydrate has a potential toxicity risk. The follow-up research should be more in-depth, and the path of toxicology should be studied in detail, so as to clarify the harm of living things and all things, and to think that the foundation of prevention and avoidance of disasters.
Future Prospects
4 - Methylbenzenesulfonic Acid Monohydrate, this is the chemical I have dedicated myself to studying. Looking to the future, its prospects can be described as vast. In the industrial field, it may emerge in organic synthesis as an efficient catalyst, improve the reaction rate and yield, and help chemical production to a new level. In the field of scientific research, it is expected to become the key to unlocking more chemical mysteries, help us to explore the reaction mechanism in depth, and expand the chemical understanding of Xinjiang. And as the concept of green chemistry is deeply rooted in the hearts of the people, it may be improved to achieve more environmentally friendly applications, reduce pollution, and meet the needs of the times. I firmly believe that with unremitting research, 4 - Methylbenzenesulfonic Acid Monohydrate will be able to bloom dazzling light, adding to the future development of chemistry and opening a new chapter.
Frequently Asked Questions
What are the main uses of 4-methylbenzenesulfonic acid monohydrate?
4-Methylbenzenesulfonic acid monohydrate has a wide range of uses. In the field of chemical industry, it is often used as a catalyst for organic synthesis. In the process of organic synthesis, many reactions require high-efficiency catalysts to promote it, and 4-methylbenzenesulfonic acid monohydrate is suitable for this task. For example, in the esterification reaction, alcohol and carboxylic acid want to form esters. Without a suitable catalyst, the reaction is slow and the yield is not high. Using this substance as a catalyst can reduce the activation energy of the reaction, slow down the reaction conditions, and increase the yield of esters.
It is also used in the preparation of medicine, and it also has important applications. Drug synthesis often involves complex organic reactions, and 4-methylbenzenesulfonic acid monohydrate can precisely catalyze specific reaction steps to help obtain high-purity target pharmaceutical ingredients.
In the field of materials science, its use should not be underestimated. In the synthesis of some polymer materials, it can regulate the rate and process of polymerization reactions, which has a profound impact on the molecular structure and properties of materials. Through clever use of its catalytic properties, polymer materials with specific properties can be prepared, such as improving the mechanical properties and thermal stability of materials.
In addition, in many fields such as the preparation of surfactants and fragrance synthesis, 4-methylbenzenesulfonic acid monohydrate plays an indispensable role due to its unique catalytic activity, providing strong support for the development of various industries.
What are the physical properties of 4-methylbenzenesulfonic acid monohydrate?
4-Methylimidazole sulfate monohydrate is an important compound in the field of chemistry. This substance has several unique physical properties.
Looking at its appearance, it is usually a white crystalline solid with a fine texture. Under normal lighting conditions, it appears pure and white, like the first snow in winter, crystal clear. It has good stability at room temperature and pressure, and is not prone to spontaneous chemical changes.
When it comes to solubility, 4-methylimidazole sulfate monohydrate can exhibit good solubility in water. When melted with water, it is like ice and snow meeting warm sun, and gradually disperses between water molecules to form a uniform solution. This property allows it to fully play a role in many chemical reactions or preparation processes involving the aqueous phase. However, in organic solvents, its solubility is relatively limited, and it can only be slightly soluble in some organic solvents, such as ethanol, etc., just like a pearl in a specific container, it can only be slightly tolerated.
In addition, 4-methyl imidazole sulfate monohydrate has a certain melting point. When the temperature gradually rises to a specific value, about [specific melting point value], the compound will slowly transform from solid state to liquid state, just like wax melts at high temperature, realizing the transformation of the state of matter. This melting point characteristic can be used as a key indicator in the purification and identification process of compounds, helping chemical practitioners to accurately identify and separate the substance.
In addition, the density of the compound is also one of its important physical properties. Its density is about [specific density value], which makes it have a corresponding impact on the density of the system when mixed with other substances or participating in a specific process, just like objects of different weights are placed in one place to shape the characteristics of the whole.
In summary, the physical properties of 4-methylimidazole sulfate monohydrate, such as appearance, solubility, melting point and density, are of great significance in chemical research, industrial production and other fields, laying a solid foundation for relevant practitioners to explore its chemical properties and applications.
Is the chemical property of 4-toluenesulfonic acid monohydrate stable?
The chemical properties of 4-methylimidazole sulfuric acid monohydrate are stable and cannot be generalized.
Looking at this compound, 4-methylimidazole is basic, sulfuric acid is a strong acid, the two form salts, and contain crystal water. Under normal conditions, if the environment does not change, it seems to be stable to a certain extent. In case of special conditions, its properties also change.
In case of high temperature, the crystal water may be lost, causing its structure to change, which in turn affects the chemical properties. For example, in industry, if the compound is processed at high temperature, new reactions may occur after dehydration.
As for the acid-base environment, due to the existence of sulfate and 4-methylimidazole cation, in case of strong acid and alkali, ion balance or breakdown. In case of strong alkalis, the cation of 4-methylimidazole may react with hydroxide; in case of strong acid, the related balance of sulfate will also move, so it is not stable under extreme acid and base.
The redox environment is also related to its stability. 4-Methylimidazole in nitrogen and other atoms may change in valence state. If it encounters strong oxidizing agents or reducing agents, or redox reactions, its chemistry will be changed.
Solvents also affect it. In water, the compound or ionization, ions dispersed in the solvent; in organic solvents, the solubility is different, or its aggregation state changes, indirectly affecting the chemical properties.
In summary, the chemical properties of 4-methyl imidazole sulfuric acid monohydrate are stable or not, depending on environmental conditions, under normal or relatively stable conditions, when the temperature, acid-base, redox, solvent, etc. change, its properties may change.
What should be paid attention to when storing 4-methylbenzenesulfonic acid monohydrate?
4-Methylimidazole tetrahydrate, when it exists, all things should be taken care of. This is a fine chemical with its own unique properties, and it must be protected according to reason to ensure its purity and stability.
First, the control of temperature and humidity is of paramount importance. It should be placed in a cool and dry place, protected from direct sunlight, and protected from moisture. High temperature can promote its transformation, and moisture can easily cause deliquescence. Both can damage its properties and damage its quality.
Second, the choice of containment should not be ignored. Airtight and corrosion-resistant utensils, glass or plastic bottles and jars must be used, depending on the situation. If it is not properly contained, the discharge of gas and the erosion of objects can cause changes in its quality.
Furthermore, the place where it is stored should be kept away from fire and heat sources, and separated from oxidizing substances. This product encounters open flames, hot topics, or combines with oxidizing agents, and may have the risk of ignition and explosion, endangering safety.
In addition, it is better to store in a good place to prevent the accumulation of gas. If gas accumulates, or is dangerous to the environment, it is unfavorable to people and things.
When it is stored, it is appropriate to set up a logo to indicate its name, sex and attention, so that the person who takes the deposit can see it at a glance, so as not to misoperate, and to ensure safety.
In short, the storage of 4-methylimidazole tetrahydrate requires careful attention to temperature and humidity, containers, fire sources, and ventilation in order to achieve the purpose of proper storage and avoid accidents.
What are the production methods of 4-methylbenzenesulfonic acid monohydrate?
There are several ways to prepare 4-methylbenzenesulfonic acid monohydrate:
First, toluene is used as the starting material to make it co-heat with concentrated sulfuric acid. During this process, toluene and concentrated sulfuric acid undergo a sulfonation reaction. The methyl group in the toluene molecule is an ortho-para locator, which will guide the sulfonic acid group to mainly enter the ortho-position and para-position of the methyl group. At an appropriate temperature and reaction time, toluene and concentrated sulfuric acid fully interact to form 4-methylbenzenesulfonic acid. After the reaction is completed, the crude product of 4-methylbenzenesulfonic acid can be obtained through cooling and separation steps. After recrystallization and other purification methods, pure 4-methylbenzenesulfonic acid can be obtained, and then it can be combined with an appropriate amount of water to obtain 4-methylbenzenesulfonic acid monohydrate. The reaction is roughly as follows: toluene + concentrated sulfuric acid (heating) → 4-methylbenzenesulfonic acid + water.
Second, the principle of electrophilic substitution reaction of aromatic hydrocarbons can be used. Using toluene as substrate, fuming sulfuric acid as sulfonation reagent. Fuming sulfuric acid has stronger sulfonation ability than concentrated sulfuric acid. Toluene reacts with fuming sulfuric acid under specific conditions to form 4-methylbenzenesulfonic acid more easily. Due to the excessive amount of sulfur trioxide in fuming sulfuric acid, sulfur trioxide is After the reaction is completed, the follow-up treatment is similar to the above treatment after sulfonation with concentrated sulfuric acid. The product is first separated, and then purified, and finally 4-methylbenzenesulfonic acid monohydrate is obtained.
Third, there are also those who use p-methylchlorobenzene as a raw material. P-methylchlorobenzene is first reacted with reagents such as sodium sulfite to sulfonate. The chlorine atom in p-methylchlorobenzene can be replaced by a sulfonic acid group to generate 4-methylbenzenesulfonic acid sodium. After that, 4-methylbenzenesulfonic acid can be obtained by treating 4-methylbenzenesulfonic acid sodium with an appropriate acid, and then through a hydration step to obtain 4-methylbenzenesulfonic acid monohydrate. This