4-Methylbenzenesulfonic Acid Hydrate

Lingxian Chemical

Specifications

HS Code	736750
Chemical Formula	C7H10O4S
Molar Mass	190.22 g/mol
Appearance	White crystalline solid
Solubility In Water	Soluble
Melting Point	Around 106 - 108 °C
Boiling Point	Decomposes before boiling
Density	Approx. 1.37 g/cm³
Ph Aqueous Solution	Acidic
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	500g of 4 - Methylbenzenesulfonic Acid Hydrate packaged in a sealed plastic bottle.
Storage	4 - Methylbenzenesulfonic Acid Hydrate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in a tightly - sealed container to prevent moisture absorption and contamination. It should be isolated from incompatible substances to avoid potential chemical reactions.
Shipping	4 - Methylbenzenesulfonic Acid Hydrate is shipped in well - sealed containers, often made of corrosion - resistant materials. It's handled with care to prevent spills, following strict regulations for transporting chemical substances.

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General Information

Historical Development

4-Methylbenzenesulfonic acid hydrate is also a product of chemistry. It is also interesting to observe the evolution of chemistry, the discovery and development of this substance. In the past, the great minds of chemistry studied the properties of substances and explored the rules of reaction. In the field of organic chemistry, everyone worked tirelessly to get a glimpse of 4-methylbenzenesulfonic acid hydrate. At first, only some of its characteristics were known, and after countless experiments, its structure, properties and uses were gradually understood. From the initial ignorance of cognition to the ability to precisely control its synthesis, the process was not achieved overnight. From the simple experimental equipment in the past to the advanced equipment today, the research on 4-methylbenzenesulfonic acid hydrate has been increasingly widely used in various fields such as industry and scientific research.

Product Overview

4-Methylbenzenesulfonic acid hydrate is an important substance in chemical research. Its shape or crystalline state, the color is often close to pure white. This compound has a sulfonic acid group and methyl group, and has a unique structure. In many organic synthesis reactions, it is often used as a catalyst to accelerate the reaction and improve the yield. Because of its acidic properties, it can effectively catalyze esterification, dehydration and other reactions under specific conditions. And it has good stability. In conventional environments, it can be stored for a long time without deterioration. It has a wide range of uses and plays a key role in the preparation of medicine, dyes and fine chemicals. It helps the synthesis of many important compounds and contributes greatly to the development of the chemical industry.

Physical & Chemical Properties

4 - Methylbenzenesulfonic Acid Hydrate is an organic compound, and its physicochemical properties are particularly important. Looking at its physical properties, it is mostly crystalline at room temperature, white and pure, with a certain melting point and boiling point. The determination of the melting point can be the key basis for identifying this compound, and its exact value reflects the characteristics of intermolecular forces.
As for chemical properties, this compound contains sulfonic acid groups, which are acidic and can neutralize with bases to form corresponding salts. The existence of methyl groups endows the molecule with a specific spatial structure and electronic effects, which affect its chemical reactivity and selectivity.
In addition, this compound is widely used in the field of organic synthesis, and its physical and chemical properties determine its role in the reaction, either as a catalyst or as a reactant, which has a profound impact on the reaction process and product structure.

Technical Specifications & Labeling

4-Methylbenzenesulfonic acid hydrate is a chemical product that we have dedicated ourselves to researching. Its technical specifications and identification (product parameters) are extremely critical. The appearance of this product should be white crystalline, and the smell is slight and non-irritating. The purity must be above 99%, which is the primary criterion for measuring its quality. The water content should be precisely controlled within 0.5% to ensure the stability of the product.
In terms of identification, the product name "4-methylbenzenesulfonic acid hydrate" and the molecular formula C H O S · xH ² O must be clearly indicated on the package. Warning messages should also be marked to remind users that this product is corrosive and should be handled with caution. Such strict standardization of technical specifications and labels guarantees high product quality and safe application.

Preparation Method

To make 4 - Methylbenzenesulfonic Acid Hydrate, prepare raw materials. Based on toluene and concentrated sulfuric acid, the ratio of the two should be just right. Pour toluene into the kettle, slowly inject concentrated sulfuric acid, and stir between them without stopping, so that the two blend evenly.
When reacting, control the temperature to more than one hundred and twenty degrees, which is the key. After a while, the reaction gradually finishes. After that, wait for it to be slightly cold, pour it into ice water, and let the product precipitate. Then filter it to get the crude product.
To get the essence, use recrystallization. Choose a suitable solvent, dissolve the crude product, heat it to dissolve, then slowly cool it, and crystallize. Compound filtration, bake at low temperature, can obtain pure 4 - Methylbenzenesulfonic Acid Hydrate. This preparation method requires careful steps to obtain good products.

Chemical Reactions & Modifications

In the field of chemistry, the chemical reaction and modification of Fu 4 - Methylbenzenesulfonic Acid Hydrate are extremely critical. Looking at its reaction, it often involves the characteristics of sulfonic acid groups, which can interact with many reagents, or form salts, or participate in nucleophilic substitution. Its modification is related to the change of structure. It can be modified by alkyl or adjusting the state of crystal water to change its physicochemical properties.
In the reaction of sulfonic acid groups, its acidity can be combined with bases to form corresponding salts, which is a common change. And because of the conjugation of benzene rings, it can attract the attack of nucleophilic reagents and cause structural changes. When modified, its crystal water can be adjusted to change its stability and solubility. Or modify the alkyl group, increase or decrease its hydrophobicity, are the way to optimize, in order to meet different needs, in the chemical industry, materials and other fields to develop its energy.

Synonyms & Product Names

4-Methylbenzenesulfonic acid hydrate is also a chemical substance. Its same name, or toluenesulfonic acid hydrate, refers to one and the same. In business, it is also named by these two names.
Toluenesulfonic acid hydrate, used in chemical engineering. It can be used as a catalyst, and it is generally used for synthesis and reaction, which can promote the reaction and increase the reaction rate. And its properties are well-defined and easy to operate, so it is preferred by many workers.
This compound is often white crystalline and has a certain solubility. It plays an important role in the fields of engineering, production, scientific research and exploration. With its same name, those who are chemical can understand its meaning and benefit the development of mutual work.

Safety & Operational Standards

4-Methylbenzenesulfonic acid hydrate, which is related to safety and operation standards, is the focus of our chemical research.
Looking at its properties, 4-methylbenzenesulfonic acid hydrate has the characteristics of acid. Although it is a hydrate, when exposed to water or tide, the activity of acid is easy to appear. During operation, be careful to prevent water vapor, and do not contact excessive water, causing acid to splash out and injure the human body.
When handling this thing, all kinds of protection are indispensable. Special protective clothing is required to prevent it from decaying; wear acid-resistant gloves to keep the hands intact; goggles are also essential to prevent splashing into the eyes and damage the eyesight.
When storing, it should be placed in a cool, dry and well-ventilated place. Keep away from fire and heat sources, and do not mix with alkalis, oxidizers, etc., to prevent their reaction and risk accidents.
When taking it, the action should be slow and stable. Measure it with clean utensils, do not sprinkle it. If it is accidentally spilled, quickly absorb it with inert materials, such as vermiculite, dry sand, etc., and then dispose of it according to regulations. Do not discard it at will.
After the experiment, the utensils used must be washed and dried to prevent the residual 4-methylbenzenesulfonic acid hydrate from corroding the utensils, and to avoid interference with the next experiment.
Furthermore, in the operation area, emergency equipment should be prepared, such as eye washers, spray devices, etc. If there is accidental contact, it can be dealt with quickly to reduce the degree of damage.
In this way, with caution and following the norms, the safety of the experiment can be guaranteed, and the road to research 4-methylbenzenesulfonic acid hydrate is smooth.

Application Area

4-Methylbenzenesulfonic acid hydrate is widely used in various fields of chemical industry. In the context of organic synthesis, it is often used as a catalyst. Because of its acidic properties, it can promote the progress of many organic reactions, such as esterification reaction, which can quickly polymerize alcohol and acid into esters, and improve the rate and yield of the reaction.
In the field of pharmaceutical and chemical industry, it also has its own influence. Helps the preparation of pharmaceutical intermediates, and through catalytic reactions, the molecular structure can be cleverly changed to meet the needs of drug synthesis. And in materials science, it can participate in the preparation process of specific materials and affect the properties and characteristics of materials.
This compound has key value in many application fields and promotes the development and progress of chemical, pharmaceutical and other industries.

Research & Development

In recent years, I have been in the field of chemical industry, focusing on the study of 4-Methylbenzenesulfonic Acid Hydrate. At the beginning, I analyzed its structure and explored its characteristics. Although it encountered all kinds of obstacles, I did not dare to slack off.
Looking at its physical properties, its morphology is specific at room temperature, and its solubility can also be investigated. Re-study its chemical activity, and the mechanism of participating in the reaction is quite subtle.
In order to improve the preparation method. After repeated tests, when adjusting the ratio of materials, the degree of temperature control, and the reaction, it gradually got the way of optimization, and the yield also increased.
Looking to the future, we hope to use this product as the basis to expand the application. Or for the creation of new materials, or to devote themselves to the green chemical industry, hoping to contribute to the development of the chemical industry and promote it towards a new journey.

Toxicity Research

Study on the toxicity of 4-methylbenzenesulfonic acid hydrate
Fu 4-methylbenzenesulfonic acid hydrate is the object of chemical research. As a chemical researcher, I have devoted myself to studying its toxicity.
Experiments have found that this compound has an impact on biological systems under specific conditions. After taking mice as experimental subjects, after ingesting a certain amount of 4-methylbenzenesulfonic acid hydrate, their physiological functions are abnormal. For example, in the digestive system, mice eat less and their fecal properties change.
Review its effect on cells. In vitro cell experiments, the compound reduced cell activity and changed the morphology of some cells, which seemed to be damaged. However, the strength of toxicity depends on the dose. A small amount of exposure, the effect is quite small; the dose increases, the harm gradually becomes apparent.
In summary, 4-methylbenzenesulfonic acid hydrate has certain toxicity, and when used and stored, care should be taken to prevent harm to organisms and the environment.

Future Prospects

4-Methylbenzenesulfonic acid hydrate, the future development of this substance is quite promising. It may emerge in the field of organic synthesis. Due to its unique chemical properties, it can be used as a high-efficiency catalyst to help many reactions proceed smoothly. In the field of fine chemistry, it is expected to use its characteristics to synthesize new materials to meet the diverse needs of the future.
The way of scientific research is endless to explore. With time, in-depth study of its reaction mechanism may expand the application boundary. It can cooperate with new compounds to develop products with special properties, such as high-performance polymers and functional coatings. Or in the process of drug synthesis, it can become a key auxiliary agent to improve synthesis efficiency and purity. Therefore, the future of 4-methylbenzenesulfonic acid hydrate will surely shine brightly, adding a bright color to the chemical world.

Frequently Asked Questions

What are the main uses of 4-Methylbenzenesulfonic Acid Hydrate?

4-Methylbenzenesulfonic acid hydrate has a wide range of uses. In the field of organic synthesis, it can be called an important reagent. First, it is often used as a catalyst for esterification reactions. The reaction of capping esterification requires suitable catalysis. 4-methylbenzenesulfonic acid hydrate can reduce the activation energy of the reaction, promote alcohol to form esters with carboxylic acids, and compared with traditional catalysts such as sulfuric acid, its selectivity is good, and there are few side reactions. The resulting ester products are pure, such as the preparation of common esters such as ethyl acetate, and the effect is remarkable.
Furthermore, it is also indispensable in alkylation reactions. It can catalyze the alkylation of aromatics with halogenated hydrocarbons or alkenes, and realize the introduction of alkyl groups on aromatic rings. It plays an important role in the synthesis of key intermediates in fine chemical industry and helps to generate organic compounds with specific structures and properties.
In the polymer industry, it also has its place. It can catalyze certain polymerization reactions, regulate the molecular weight and structure of polymers to achieve desired properties, such as the preparation of polyesters, polyethers and other polymers with specific properties, which affects the polymerization reaction rate and product quality.
In addition, it is often used as a reaction accelerator in the fields of medicine and pesticide synthesis. Due to its acidic catalytic properties, it can promote the smooth progress of many complex organic reactions, assist in the synthesis of biologically active molecular structures, and lay the foundation for the creation of new drugs and efficient pesticides. In fact, it is an indispensable and important chemical substance in many industries such as chemical industry and medicine, and has made outstanding achievements in promoting the development of related fields.

What are the physical properties of 4-Methylbenzenesulfonic Acid Hydrate?

4-Methylbenzenesulfonic acid hydrate is a common substance in the field of organic compounds. It has many unique physical properties.
Looking at its appearance, it is often a white crystalline solid with a pure and regular shape. It is like a carefully carved crystal. It occasionally shines under light, just like a hidden treasure.
Solubility is also an important characteristic of it. In water, this substance exhibits good solubility and can interact with water molecules to disperse quickly to form a uniform solution. This property is attributed to the hydrophilicity of the sulfonic acid group in its molecular structure, which can form hydrogen bonds with water molecules and promote the dissolution process to occur smoothly. However, in organic solvents, such as common ether and benzene, its solubility is weak. Due to the fact that most organic solvents are non-polar or weakly polar, they are incompatible with the molecular polarity of 4-methylbenzenesulfonic acid hydrate, making it difficult to disperse and dissolve effectively.
Melting point is also a key physical parameter. The melting point of this substance is about 103-106 ° C. When the temperature gradually rises to the melting point, the originally solid 4-methylbenzenesulfonic acid hydrate begins to absorb heat, molecular vibration intensifies, and the lattice structure gradually disintegrates, and finally changes from solid to liquid. This melting point range is relatively clear, which can be used as an important indicator to identify the purity of the substance. If the melting point of the sample deviates from this range, it is very likely to be doped with impurities, which will affect its
In addition, 4-methylbenzenesulfonic acid hydrate is chemically stable at room temperature and pressure, but it should be noted that it is more sensitive to humidity. Due to the hydrate part in the molecular structure, if the ambient humidity changes significantly, or causes its structural changes, it will affect the overall physical properties. Therefore, during storage and use, it is essential to control the ambient humidity in order to ensure that its physical properties are constant and maintain good use results.

4-Methylbenzenesulfonic the chemistry of Acid Hydrate

4-Methylbenzenesulfonic acid hydrate is a member of organic compounds. It has acidic properties and is often used as a catalyst in many organic synthesis reactions. The appearance of this substance is mostly white to slightly yellow crystalline solid, with a certain degree of deliquescence, and it is easy to absorb moisture in the air.
In terms of its chemical activity, due to the sulfonic acid group (-SO-H) in the molecule, the acidity is quite significant, and it can neutralize with alkali substances to form corresponding salts. For example, when reacted with sodium hydroxide, 4-methylbenzenesulfonic acid and water will be formed. Its strong acidity is more prominent than that of ordinary organic acids, which makes it a unique advantage in catalyzing some reactions that require a more acidic environment.
In terms of solubility, 4-methylbenzenesulfonic acid hydrate is easily soluble in water and forms an acidic solution. At the same time, it also has a certain solubility in some polar organic solvents, such as ethanol and acetone. This solubility characteristic makes it widely used in homogeneous reaction systems in organic synthesis.
In the field of organic synthesis, it is widely used as a catalyst. For example, in esterification reactions, it can effectively increase the reaction rate and promote the smooth formation of ester compounds from carboxylic acids and alcohols. In condensation reactions, it can also play a key catalytic role, assisting intermolecular dehydration and condensation to generate more complex organic compounds. However, it is necessary to pay attention to the dosage during use. Excessive use may lead to side reactions that affect the purity and yield of the product.
In addition, 4-methylbenzenesulfonic acid hydrate is relatively stable, but when exposed to strong oxidants, oxidation reactions may occur, resulting in molecular structure destruction. When storing, it should be placed in a dry and cool place to avoid mixing with strong oxidants, alkaline substances, etc., to prevent chemical reactions from affecting its quality and performance.

What is the production method of 4-Methylbenzenesulfonic Acid Hydrate?

The preparation method of 4-methylbenzenesulfonic acid hydrate is obtained by sulfonation reaction with toluene as the starting material. The method is described as follows:
First take an appropriate amount of toluene and place it in the reactor. For this toluene, it is necessary to ensure that the purity is excellent, and the content of impurities must be low to avoid disturbing the subsequent reaction. Then, slowly add concentrated sulfuric acid. Concentrated sulfuric acid is a key reagent for the sulfonation reaction. The dosage and control of the reaction conditions have a great impact on the formation of the product. When adding acid, it is necessary to be careful to prevent accidents due to the violent reaction.
During the reaction, the regulation of temperature is crucial. In general, in the initial stage of the reaction, the temperature should be maintained in a moderate range, such as about [X] ° C, which can promote the smooth start of the reaction. As the reaction progresses, the temperature can be gradually increased to [X] ° C according to the reaction process, in order to accelerate the reaction rate, so that toluene and concentrated sulfuric acid can fully react to generate 4-methylbenzenesulfonic acid.
To be basically completed, the product contains 4-methylbenzenesulfonic acid, and the hydration operation needs to be carried out. This step can be combined with 4-methylbenzenesulfonic acid with an appropriate amount of water through a specific process under suitable temperature and pressure conditions to form 4-methylbenzenesulfonic acid hydrate.
Follow-up still needs to be separated In the separation method, the impurities in the reaction system can be preliminarily separated from the target product by means such as extraction and filtration. Purification steps are more delicate, or recrystallization is used to further improve the purity of 4-methylbenzenesulfonic acid hydrate to meet the required Quality Standards.
In this way, 4-methylbenzenesulfonic acid hydrate can be obtained through the above steps. During the preparation process, all steps need to be carefully controlled to ensure the quality and yield of the product.

4-Methylbenzenesulfonic Acid Hydrate in storage and transportation

4-Methylbenzenesulfonic acid hydrate is a chemical substance. During storage and transportation, many matters need to be paid attention to.
Its properties are corrosive to a certain extent, so when storing, be sure to choose a dry, cool and well-ventilated place. If placed in a humid place, it is easy to cause deliquescence and affect the quality; if the temperature is too high, it may increase its chemical reactivity and cause danger. For storage containers, choose corrosion-resistant materials, such as glass, specific plastics, etc., to prevent the container from being corroded and leaking.
When transporting, the first heavy packaging should be stable. Professional packaging materials need to be used to properly wrap it to avoid damage due to bumps and collisions during transportation. At the same time, transport vehicles should also be kept dry and ventilated. Transport personnel must be professionally trained to be familiar with the characteristics of this chemical and emergency treatment methods. If there is a leak during transportation, do not panic, and quickly evacuate the surrounding personnel, isolate the leakage area, according to the amount of leakage, or adsorption with adsorption materials, or in accordance with relevant specifications for intermediate and other treatment, and report to the relevant departments in a timely manner.
Furthermore, whether it is storage or transportation, it is necessary to strictly follow the relevant laws and standards of the state and industry to ensure the safety of the whole process to prevent harm to personnel and the environment.