Products

Benzenesulfonic Acid, Methyl Ester

Lingxian Chemical

Specifications

HS Code

495101

Chemical Formula C7H8O3S
Molar Mass 172.202 g/mol
Appearance Typically a colorless to light - yellow liquid
Boiling Point Approximately 260 - 265 °C
Density Around 1.2 - 1.3 g/cm³
Solubility In Water Slightly soluble
Solubility In Organic Solvents Soluble in many organic solvents like ethanol, ether
Flash Point Relatively high, indicating low flammability
Acidity Weakly acidic due to the sulfonic acid - ester structure
Packing & Storage
Packing 500g of Benzenesulfonic Acid, Methyl Ester in sealed, corrosion - resistant packaging.
Storage Store benzenesulfonic acid, methyl ester in a cool, dry, well - ventilated area, away from heat sources and open flames. Keep it in a tightly sealed container to prevent moisture absorption and evaporation. Separate it from oxidizing agents and reactive chemicals. Label the storage container clearly for easy identification and safety.
Shipping Benzenesulfonic acid, methyl ester should be shipped in tightly - sealed containers, safeguarded from heat and ignition sources. It must comply with chemical transportation regulations to prevent spills and ensure safe transit.
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Benzenesulfonic Acid, Methyl Ester
General Information
Historical Development
"The History of Methyl Benzenesulfonate"
Methyl benzenesulfonate is also an organic compound. Tracing its origin, when the study of organic synthesis by chemists was gradually emerging. In the past, various sages worked hard in the field of organic synthesis, exploring the hidden.
At the beginning, only a little bit of its structure was known, and after the exhaustion of chemists over the ages, the reaction mechanism and preparation methods were all refined. It was obtained by accident at the beginning, and then gradually became clear about its synthesis method, which was controllable and controlled. In the early preparation, the conditions were difficult and the yield was very small. However, everyone was determined and worked tirelessly.
With the passage of time, chemical technology has become more and more mature, the production of methyl benzenesulfonate has become more convenient, and the output has also increased. It has emerged in many fields such as medicine and chemical industry, contributing to the progress of mankind. Its historical evolution is actually a microcosm of chemical development.
Product Overview
Methyl benzenesulfonate is a class of organic compounds. It is formed by linking a sulfonic acid group to a methyl ester group. This substance is often used as an intermediate in organic synthesis in the chemical industry. In the reaction, methyl benzenesulfonate can participate in many chemical reactions with its active group, such as nucleophilic substitution reactions. Its physical properties are colorless to light yellow liquids with specific boiling points and melting points. Its chemical properties are relatively active. Due to the characteristics of sulfonic acid groups and methyl ester groups, it can interact with a variety of reagents. However, when using it, it is necessary to pay attention to its safety, because it may have certain toxicity and irritation. In terms of storage, corresponding specifications should also be followed to prevent danger. Only in this way can this compound be used reasonably and safely to contribute to chemical synthesis and other fields.
Physical & Chemical Properties
Taste the industry of chemical industry, focus on the study of physical properties, in Benzenesulfonic Acid, Methyl Ester, to explore its physicochemical properties in detail. Its shape or a clear liquid, with a specific color and smell. Looking at its boiling point, at a specific temperature, there is a phase change, turning into a gaseous state and rising. As for the melting point, at a suitable low temperature, it condenses into a solid state, like ice crystals.
Its solubility is quite specific, in some organic solvents, it is immiscible, but in water, it has a specific solubility limit. Regarding its chemical activity, when it meets the reagent under specific conditions, it can react delicately, or produce new substances, or change structures. In this way, both physical and chemical properties are essential to the chemical industry, which is related to the application of this object in various industries. It is also the direction of continuous research by our researchers, hoping to understand its rationality and make good use of it to benefit the world.
Technical Specifications & Labeling
"On the Technical Specification and Labeling (Product Parameters) of Methyl Benzenesulfonate"
The technical specification of methyl benzenesulfonate is related to the preparation method. It is necessary to use accurate raw material ratio, temperature control at an appropriate value, stir evenly and moderately, in order to obtain good quality products. The reaction time is also necessary, not too long or too short, otherwise the quality will vary.
As for the label, when stating its name "Methyl Benzenesulfonate", list the product parameters. For example, the purity must reach more than [X]%, and the impurity content must be strictly controlled. The properties should be remembered in detail, and the color and taste are clear. And the warning words, because it may be dangerous, are related to safety and should not be ignored. In this way, the technical specifications and logos are clear, which is suitable for the production and use of this object.
Preparation Method
To make methyl benzenesulfonate, the method is as follows: first take benzenesulfonate as raw material, mix an appropriate amount of methanol with it, and the two phases need to be combined in a specific reaction vessel. Then, adjust the reaction temperature and slowly heat up to a suitable range, usually about tens of degrees Celsius, so that the esterification reaction between the two occurs. During this reaction process, the progress of the reaction should be paid attention to, and it should be known by observation of the phenomenon or specific detection methods. After the reaction is completed, the pure methyl benzenesulfonate product can be obtained by separating and purifying the process and removing impurities. Among them, the control of the reaction conditions is the key. Temperature, raw material ratio, reaction time, etc. will all affect the yield and purity of the product. It should be done with caution to achieve the best preparation effect.
Chemical Reactions & Modifications
"On the Chemical Reaction and Modification of Methyl Benzenesulfonate"
Now there is methyl benzenesulfonate, and its chemical reaction and modification are very important in the field of chemical research. Methyl benzenesulfonate has unique chemical properties and can involve a variety of reaction pathways.
As far as chemical reactions are concerned, it can interact with many reagents. For example, under specific conditions, it can undergo nucleophilic substitution reaction with nucleophilic reagents. During this process, the ester group part may be attacked by nucleophilic reagents, causing chemical bonds to break and reconnect, resulting in the formation of new compounds. This reaction mechanism is complex and is significantly affected by reaction conditions such as temperature and solvent.
As for modification, it is designed to optimize its performance. Or by introducing specific functional groups to change its physical and chemical properties, such as solubility and stability. After modification, methyl benzenesulfonate may be better used in materials science, drug synthesis and other fields. Such exploration is expected to expand its use and contribute to the development of the chemical field.
Synonyms & Product Names
Methyl benzenesulfonate, this substance is also called "methylbenzene sulfonate". Although their names are different, they actually refer to the same chemical substance. Methyl benzenesulfonate is widely used in various fields of chemical industry, and is often an important raw material or intermediate in organic synthesis.
Although the ancients did not know it in detail, today's chemical researchers study its properties and uses in detail. Its properties and reaction rules are all important to researchers. Whether it is involved in chemical preparation, or used in the fine chemical industry, the shadow of methyl benzenesulfonate can be seen. The same name is different, which is convenient for all parties to communicate, and it is beneficial to the academic and industrial circles. It helps everyone to better understand the properties and uses of this substance, so as to promote the progress of chemical industries.
Safety & Operational Standards
Code for safety and operation of methyl benzenesulfonate
Methyl benzenesulfonate is a chemical often involved in chemical research. In its experiment and application, strict adherence to safety and operation standards is related to the safety of researchers and endangers the smooth operation of the experiment.
#1. Storage safety
Methyl benzenesulfonate should be stored in a cool, dry and well-ventilated place. Keep away from fires and heat sources to prevent its chemical properties from being unstable due to rising temperature. It should be stored separately from oxidizing agents and bases, and must not be mixed. Mixing can easily cause chemical reactions or even explosions. The storage area should be equipped with suitable materials to contain leaks to prevent accidental leakage and respond in time to reduce damage hazards.
#Second, operating instructions
When operating, be sure to wear appropriate protective equipment. Wear protective clothing and protective gloves to avoid contact between methyl benzenesulfonate and the skin, because it is corrosive, touch or cause burns. With protective glasses, it can protect the eyes from splashing damage. The experimental operation should be carried out in a fume hood. Good ventilation can drain the volatile gas in time, reduce the concentration in the air, and avoid inhalation poisoning. During the operation, the action should be steady and careful to avoid damage and leakage caused by the collision of the container. After taking it, seal the container immediately to prevent it from evaporating and reacting with air components.
#3. Emergency treatment
If a leak occurs accidentally, the first thing to do is to quickly evacuate the personnel in the contaminated area of the leak to a safe place, and isolate them, and strictly restrict access. Emergency personnel must wear self-contained positive pressure breathing apparatus and anti-toxic clothing. Do not directly contact the leak, and cut off the source of the leak as much as possible. In the case of a small leak, you can mix sand, dry lime or soda ash and collect them in a dry, clean and covered container. In the event of a large leak, build a dike or dig a pit for containment, cover it with foam to reduce the vapor hazard, and transfer it to a tanker or a special collector by pump for recycling or transportation to a waste treatment site for disposal.
In case of skin contact, immediately remove contaminated clothing, rinse with plenty of running water for at least 15 minutes, and then seek medical attention. Eye contact, lift eyelids, rinse with flowing water or normal saline, also need to seek medical attention. If inhaled, quickly leave the scene to a fresh place in the air, keep the respiratory tract unobstructed, such as breathing difficulties, give oxygen, stop breathing and heartbeat, immediately carry out cardiopulmonary resuscitation and seek medical attention.
Strict adherence to the safety and operating standards of methyl benzenesulfonate is the basis for safe and efficient chemical research, and must not be neglected.
Application Area
Methyl benzenesulfonate is widely used. In the field of chemical industry, it is often used as a raw material for organic synthesis. With its special chemical properties, it can participate in reactions to produce a variety of compounds. In the preparation of medicine, or as an intermediate, it helps the research and development of new drugs and adds wings to the path of curing diseases. In material science, it also has its use, assisting in the research of new materials, improving material properties, and making them more suitable for different needs. And in the production of some fine chemical products, methyl benzenesulfonate is also indispensable. With its unique effect, it optimizes product quality, expands the scope of application, and shows its extraordinary use in various fields, making great contributions to the prosperity of various industries.
Research & Development
I have tasted the chemical industry, and new products have emerged one after another. I have been studying this product for a long time in Benzenesulfonic Acid and Methyl Ester. When I first started, its nature was unknown, and all kinds of reactions were difficult. However, I held firm resolve and explored day and night. After repeated experiments, I observed its response to various things, temperature changes and pressure changes, and recorded them in detail.
Gradually, it is clear that it can be combined with a certain agent in a certain situation to produce a different quality, which is of great benefit. And with improved technology, the yield has also been improved. However, I know that there is no end to learning, and there are still many mysteries to be discovered. In the future, we will do our best to build on this product, open up new frontiers, and promote the vigorous development of the chemical industry.
Toxicity Research
Taste the industry of chemical industry, there are many categories, among them are Benzenesulfonic Acid, Methyl Ester. Our generation takes toxicity research as a service and carefully explores the properties of this substance.
Look at its structure, benzenesulfonic acid methyl ester group, this unique structure, or toxicity. In the experimental environment, try it with all kinds of creatures. Mice ingested, initially active as usual, not long after, gradually appear depressed state, diet greatly reduced, and even body twitching, all of which are signs of toxicity.
It is also tested in plants, and its growth situation is hindered, the leaves are gradually turning yellow, and the vitality is bleak. This substance may enter the body through the mouth, nose, and skin, damaging the viscera and messing with physiology. Although it has some function in industry, its toxicity is difficult to ignore. It is necessary to strictly investigate the prevention and control policies and apply proper methods to ensure the safety of all living beings and the health of the environment.
Future Prospects
The prospect of the future, in Benzenesulfonic Acid, Methyl Ester, this product has a good environment. Its properties and uses are complex. In the field of work, it may help to improve the delicacy of synthesis, making the product more efficient and efficient. At the forefront of scientific research, it is expected to explore new technologies and increase the demand.
In addition, at the research end of new materials, it may be able to help, and the new materials will meet the same demand with new energy. And its methods and methods of improvement have a period of refinement, reducing costs and increasing output, and benefiting the world. In the future, Benzenesulfonic Acid, Methyl Ester will be exhibited in the future, and it will be seen that it will be revealed and made extraordinary.
Frequently Asked Questions
What are the main uses of Benzenesulfonic Acid, Methyl Ester?
Benzenesulfonic Acid (Methyl Ester) has a wide range of uses. In the field of organic synthesis, it is often used as an important intermediate. Due to its active chemical properties, it can participate in a variety of chemical reactions to produce various organic compounds.
For example, in the process of drug synthesis, methyl benzenesulfonic acid can introduce specific functional groups through specific reaction pathways to help build complex drug molecular structures, thereby providing a key raw material basis for the development and preparation of new drugs.
It can also be seen in the field of materials science. Or it can be used to synthesize special polymer materials, with its unique chemical structure, giving the material specific properties, such as improving the stability and solubility of the material, so that the material can play a better performance in a specific environment.
Furthermore, in the dye industry, methyl benzenesulfonate also has its place. Through a series of chemical transformations, it can become an important component of synthetic dyes, providing the necessary chemical basis for the regulation of key properties such as color and fastness of dyes, so that dyes can meet the dyeing needs in different scenarios.
In short, methyl benzenesulfonate has indispensable and important uses in many fields such as organic synthesis, drugs, materials, dyes, etc., and has made great contributions to the development and progress of various industries.
What are the physical properties of Benzenesulfonic Acid, Methyl Ester
Methyl benzenesulfonate is also an organic compound. Its physical properties are quite important, let me tell you one by one.
Looking at its properties, at room temperature, methyl benzenesulfonate is a colorless to slightly yellow oily liquid, which is a significant feature of its appearance. Although its smell is not strongly pungent, it also has a certain special smell.
When it comes to the melting point, the melting point of methyl benzenesulfonate is relatively low, about -30 ° C. The boiling point is higher, roughly between 238-240 ° C. This melting boiling point characteristic has a great impact on chemical operation and material separation. The low melting point makes it liquid at room temperature, which is convenient for mixing and operation in various reactions; if the boiling point is high, it needs a higher temperature to be vaporized and separated in the separation process such as distillation.
Its density is also one of the important physical properties, about 1.25g/cm ³. This density makes methyl benzenesulfonate stratified according to the density difference when mixed with other liquids. In chemical experiments and industrial production, it has an indicative effect on the distribution and separation of substances.
Furthermore, in terms of solubility, methyl benzenesulfonate is slightly soluble in water, but soluble in organic solvents such as ethanol and ether. This difference in solubility is of great significance in extraction, reaction medium selection, etc. In the organic synthesis reaction, its soluble organic solvent is often selected as the reaction medium to promote the smooth progress of the reaction; and the slightly soluble property in water makes it have unique behavior in the aqueous phase system, or it can be purified by means of water phase separation.
The volatility of methyl benzenesulfonate is relatively weak, and it is less volatile into the air at room temperature and pressure. However, in high temperatures or specific operating environments, it is also necessary to pay attention to the possible effects of its volatilization, such as potential hazards to the environment and the health of operators.
In summary, the physical properties of methyl benzenesulfonate are of great significance in many fields such as chemical industry and scientific research. In-depth understanding and good use can obtain its benefits and avoid its drawbacks.
Benzenesulfonic Acid, Methyl Ester
Methyl benzenesulfonate, this material property is unique. It is a colorless to slightly yellow liquid with a pungent odor and a pungent and disturbing nose.
In terms of physical properties, its boiling point is quite high, about 230 ° C, and it is relatively stable at room temperature. The density is greater than that of water, about 1.25g/cm ³, so it will sink to the bottom when mixed with water. And it is difficult to dissolve in water, but it can be soluble in many organic solvents, such as ethanol, ether, etc. This is because of the similar compatibility.
In terms of chemical properties, the sulfonate group in methyl benzenesulfonate has considerable activity. In case of strong bases, hydrolysis reactions are prone to occur, resulting in benzenesulfonate and methanol. Under certain conditions, it can also participate in the nucleophilic substitution reaction, and its ester group can be replaced by other nucleophilic reagents. Because of the benzene ring in its structure, it also has some characteristics of the benzene ring, such as the substitution reaction on the benzene ring can occur, and other groups can be introduced under suitable catalysts and conditions.
However, it should be noted that methyl benzenesulfonate has certain toxicity and irritation, which is harmful to the human body. It is necessary to follow safety procedures when operating, and take protective measures to prevent contact and inhalation.
Benzenesulfonic Acid, Methyl Ester Preparation
The method of preparing methyl benzenesulfonate has been around since ancient times, and after years, the method has gradually improved. The main steps are as follows:
First, the raw materials need to be prepared, and benzenesulfonic acid and methanol are the key materials for preparing methyl benzenesulfonate. The benzenesulfonic acid needs to be pure and free of impurities, and the methanol must also reach a certain purity in order to ensure a smooth reaction.
The second step is the reaction step. The benzenesulfonic acid and methanol are injected into the reaction vessel in an appropriate ratio. This ratio is quite important. It is usually based on the stoichiometric ratio, and then slightly adjusted according to the actual reaction conditions to make the reaction fully proceed. Then, an appropriate amount of catalyst is added. Commonly used catalysts, such as concentrated sulfuric acid, can accelerate the
During the reaction process, temperature and pressure need to be precisely controlled. Generally speaking, this reaction is carried out under moderate heating conditions, and the temperature is mostly maintained at a certain range, so as to promote the reaction rate neither too fast to increase side reactions, nor too slow and time-consuming. In terms of pressure, under normal pressure or slightly pressurized conditions, the reaction can be carried out, depending on the specific reaction equipment and conditions.
To complete the reaction, it still needs to be separated and purified. Because the reaction products, in addition to methyl benzenesulfonate, or contain impurities such as unreacted raw materials and by-products. Methyl benzenesulfonate can be separated by distillation by the difference in boiling points of different substances. The boiling point of methyl benzenesulfonate has a specific value. Through precise temperature control, methyl benzenesulfonate is vaporized and condensed. Extraction can also be used to select a suitable extractant, extract methyl benzenesulfonate from the reaction mixture, and then follow up to obtain pure methyl benzenesulfonate.
In this way, methyl benzenesulfonate can be prepared through a series of steps such as raw material preparation, reaction operation, separation and purification.
Benzenesulfonic Acid, Methyl Ester What are the precautions during use
Methyl benzenesulfonate is an organic compound. When using it, many things should be paid attention to.
First, toxicity prevention is essential. This substance is toxic and can cause harm to the human body through inhalation, ingestion and skin contact. Therefore, when using it, be sure to be in a well-ventilated place, or configure an effective ventilation device to avoid inhalation of its volatile gas. When operating, use appropriate protective equipment, such as protective clothing, gloves and goggles, to prevent skin and eye contact. If you accidentally touch it, rinse it with plenty of water immediately, and seek medical attention in a timely manner according to the severity of the injury.
Second, chemical properties. Methyl benzenesulfonate is reactive. In case of open flame, hot topic or contact with oxidant, there is a risk of combustion and explosion. It is a place for storage and use, and should be kept away from fire, heat sources and oxidants. And it must be stored in a cool, dry and well-ventilated warehouse, and it should be stored separately from contraindicated substances. Do not mix storage.
Third, the operation of norms. During use, the established operating procedures should be strictly followed to avoid excessive exposure. During the experimental operation, the dose should be precisely controlled, and the operation action should be stable and careful to prevent spillage. In the event of spillage, personnel from the leaked contaminated area should be quickly evacuated to a safe area, and quarantined to strictly restrict access. Emergency personnel must wear protective equipment and do not let leaks come into contact with combustible substances. In the event of a small amount of leakage, it can be collected by mixing sand, dry lime or soda ash; in the event of a large amount of leakage, build a dike or dig a pit for containment, transfer it to a tank car or a special collector by pump, and recycle or transport it to a waste treatment site for disposal.
Fourth, properly dispose of waste. Waste after use must not be discarded at will. It should be properly disposed of in accordance with relevant laws and standards to prevent pollution to the environment. It can be handed over to a qualified waste treatment agency for harmless treatment in accordance with regulations.
All of these are what should be paid attention to when using methyl benzenesulfonate, and must not be negligent, so as not to endanger personal safety and the environment.