P-Toluenesulfonic Acid Monohydrate

Lingxian Chemical

Specifications

HS Code	566705
Chemical Formula	C7H10O4S
Molar Mass	190.217 g/mol
Appearance	White crystalline solid
Odor	Odorless
Solubility In Water	Soluble
Solubility In Organic Solvents	Soluble in many organic solvents like ethanol, methanol
Ph Aqueous Solution	Acidic
Melting Point	96 - 99 °C
Boiling Point	Decomposes
Acidity	Strong organic acid
Stability	Stable under normal conditions, but moisture - sensitive

Packing & Storage

Packing	1 kg of P - Toluenesulfonic Acid Monohydrate in a sealed plastic - lined paper bag.
Storage	P - Toluenesulfonic Acid Monohydrate should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and incompatible substances like strong oxidizers. Store in tightly sealed containers to prevent moisture absorption and contamination, as it can affect its chemical properties and reactivity.
Shipping	P - Toluenesulfonic Acid Monohydrate is shipped in well - sealed containers to prevent moisture absorption and leakage. It's handled with care due to its acidic nature, following strict regulations for chemical transportation.

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General Information

Historical Development

P-Toluenesulfonic Acid Monohydrate is one of the chemical products. Tracing back to its origin, the chemists of the past gradually discovered this substance while exploring the secrets of the substance. At first, its properties and uses were not widely known, but were only seen within a limited range of experiments.
With the passage of time and the deepening of research, all the wise men have gained insight into its unique ability in organic synthesis. It can be used as a catalyst to help many reactions proceed smoothly. Its efficiency has gradually become more important in the industry, and its application has become more and more extensive. From simple experimental workshops to large-scale chemical workshops, it has been seen.
Over the years, the preparation method has also been easier to improve, the quality has gradually improved, and the output has also increased. From little known to widely used in chemical fields, this is the development track of P-Toluenesulfonic Acid Monohydrate.

Product Overview

"Description of p-toluenesulfonic acid monohydrate"
p-toluenesulfonic acid monohydrate is particularly useful in chemical products. Its state is often white crystalline, with good solubility, and it can be dissolved in many solvents such as water and alcohol.
This product is very useful in the field of organic synthesis. It is often a catalytic agent, which can promote the speed of many reactions, such as esterification reactions. Through its catalysis, the reaction process is accelerated and the yield is also improved. It also plays a key role in some condensation reactions, allowing the reaction to proceed smoothly.
And its properties are relatively stable, making it easy to store and use. However, when using it, it is also necessary to pay attention to its acidic properties to prevent damage to equipment and operators. In chemical preparation, pharmaceutical synthesis and other industries, p-toluenesulfonic acid monohydrate is an indispensable product, which is an important help to promote the development of chemical processes.

Physical & Chemical Properties

"On the Physical and Chemical Properties of p-toluenesulfonic Acid Monohydrate"
p-toluenesulfonic acid monohydrate, its shape and color, often white crystalline, looks clear. In terms of its physical properties, the melting point is quite important, about 96-99 ℃, this temperature characteristic has a significant impact on many applications. Its solubility is also key, and it is easily soluble in solvents such as water, alcohols and ethers, which makes it easily dispersed in different systems.
On chemical properties, its acidity is active, and as a strong organic acid, it can be used as a catalyst in many chemical reactions. For example, in esterification reactions, it can effectively promote the reaction process and improve the reaction rate and yield. And its stability is good under specific conditions. However, when it encounters strong oxidants and other substances, chemical reactions will occur, resulting in changes in its own structure and properties. The physical and chemical properties of this substance have important uses in chemical, pharmaceutical and other fields, and are worthy of in-depth investigation.

Technical Specifications & Labeling

Nowadays, there are P-Toluenesulfonic Acid Monohydrate products, which are related to their technical specifications and labels (product parameters). The appearance of this product should be white crystals, which should be pure and free of impurities. Its content needs to reach a very high standard to ensure effectiveness.
When it comes to technical specifications, the melting point range must be precisely controlled, which is a key indicator. And the moisture content must also be strictly limited to prevent affecting the quality. As for the logo, on the packaging, the product name, specifications, origin and other information should be clear and clear for easy identification.
Only by strictly abiding by the technical specifications and labeling guidelines and ensuring the same product quality can it be used in various applications to show its excellent performance and live up to expectations.

Preparation Method

This product of P-Toluenesulfonic Acid Monohydrate is made as follows: Based on toluenesulfonic acid, take an appropriate amount of raw materials, and the raw materials must be pure and good. First, the raw materials are placed in a special vessel, and the temperature and pressure are controlled according to a specific production process. At the beginning of the reaction, stir slowly to make it uniform, observe its change, and observe its color. To be reacted gradually, follow the steps in an orderly manner, and add agents at the right time to help the reaction. And set up a catalytic mechanism, use an efficient catalyst to increase the rate of the reaction, so that the reaction is fast and complete. After the reaction is completed, the refined product of P-Toluenesulfonic Acid Monohydrate is obtained through fine purification, removal of impurities and purity. Its quality is high, and it can meet the needs of all parties.

Chemical Reactions & Modifications

P-Toluenesulfonic Acid Monohydrate is a commonly used catalyst in organic synthesis. It exhibits unique catalytic properties in many chemical reactions.
Looking at its chemical reaction, it can speed up the rate of many reactions, just like the "fast horse" that helps the reaction. Taking the esterification reaction as an example, this material can promote the efficient combination of acids and alcohols to form ester products, which greatly improves the reaction efficiency.
As for its modification, chemists have been working tirelessly to fine-tune its structure by specific means. Or introduce specific groups to make its catalytic activity more targeted. In this way, in some special reactions, precise catalysis can be done on demand, just like a customized "exclusive key" for the reaction. In this way, P-Toluenesulfonic Acid Monohydrate, after being modified, will definitely play a more critical role in the field of chemical synthesis and contribute to the development of the chemical industry.

Synonyms & Product Names

Today there is a product called P-Toluenesulfonic Acid Monohydrate. Its aliases are also numerous, all of which are related to the name of this product. This is a commonly used product in the chemical industry and has a wide range of uses.
Looking at its properties, it has unique chemical characteristics. In various reactions, it is often a key additive. It can help the reaction go smoothly and improve efficiency, just like a boat in a boat, it is indispensable.
This product plays an important role in many fields such as industrial manufacturing, scientific research and exploration. It is either an important role in synthesis or a help for analysis. With its unique nature, it plays a significant role. Many craftsmen and scholars rely on its function to promote the success of all things. Therefore, although it is a micro-substance, it is of great value in the field of chemical industry.

Safety & Operational Standards

P-Toluenesulfonic Acid Monohydrate, or p-toluenesulfonic acid monohydrate, is a chemical reagent commonly used in chemical research. When using this chemical, safety and operating practices are of paramount importance.
First of all, it is about safety. This product is corrosive to a certain extent, and contact with the skin or eyes can cause burns. Therefore, when operating, it is necessary to wear appropriate protective equipment, such as protective gloves, goggles, etc., to prevent direct contact with the body. If you accidentally touch the skin, you should immediately rinse with plenty of water, and then seek medical assistance according to the degree of burns; if you splash into the eyes, you need to rinse with plenty of water immediately and seek medical attention as soon as possible. In addition, p-toluenesulfonic acid monohydrate may decompose to produce harmful gases when heated, so the operation should be carried out in a well-ventilated environment, preferably in a fume hood to avoid inhaling harmful gases and endangering health.
Furthermore, in terms of operation specifications. When taking the reagent, use a clean and dry appliance to prevent impurities from mixing in and affecting its purity and experimental results. When weighing, precise operation is required, and the dosage is controlled according to the experimental requirements. When dissolving p-toluenesulfonic acid monohydrate, it is advisable to slowly add it to an appropriate amount of solvent and stir it continuously to promote dissolution. If the dissolution process is exothermic, attention should be paid to controlling the temperature to prevent danger or affect the performance of the reagent due to excessive temperature. And after use, it should be properly stored in a dry and cool place to avoid moisture and deterioration to ensure that its quality and performance are not affected when it is used next time. Strictly follow these safety and operating standards to ensure the smooth progress of the experiment and the safety of the experimenter.

Application Area

Now there is P - Toluenesulfonic Acid Monohydrate, which has a wide range of application fields. In the field of organic synthesis, it is often used as a catalyst. For example, the esterification reaction of alcohol and carboxylic acid, adding this substance can promote the reaction smoothly and improve the yield. And in some etherification reactions, it can also show its catalytic effect, making the reaction conditions milder.
In drug synthesis, it also has its uses. It helps to construct specific drug molecules, and with its catalytic properties, precisely regulates the reaction process and achieves the desired drug structure.
Furthermore, in the field of materials science, it can participate in the preparation of some polymers. Promote monomer polymerization, improve the properties of materials, such as improving the stability and mechanical strength of materials. From this point of view, P - Toluenesulfonic Acid Monohydrate plays a significant role in various application fields and has broad prospects.

Research & Development

Nowadays, there is P-Toluenesulfonic Acid Monohydrate, which is of increasing importance in the field of chemical research. My generation studied it, explored its properties and studied its uses, and hoped to make progress.
At the beginning, I carefully observed its structure, understood the wonder of its molecular composition, and understood the method of bonding. Then test its physicochemical properties, observe its state change at different temperatures and pressures, measure its solubility and melting degree, and know its acid-base properties.
Also consider its use in various reactions. In organic synthesis, it is often a catalyst, which can promote the speed of the reaction and increase the yield of the product. If it participates in the esterification reaction, it can make the reaction efficient and smooth.
However, the research road is not smooth. How to improve its purity, reduce its cost, and increase its stability are all questions to be solved. We should study diligently, with the rigor of ancient methods and the subtlety of current technologies, hoping to make achievements in the research and development of P-Toluenesulfonic Acid Monohydrate, and contribute to the field of chemistry.

Toxicity Research

About the study of the toxicity of p-toluenesulfonic acid monohydrate
Today's research on p-toluenesulfonic acid monohydrate, which is used in the industrial and chemical fields. My generation actually investigated its toxicity geometry.
Take the white mice as a test, and feed them with food containing this thing. After a while, the white mice became irritable and ate lazily. From an anatomical perspective, the organs were damaged, the liver was different in color, and the spleen was slightly swollen.
It was tested with green plants, and sprinkled the solution on the soil. After a while, the yellow stems of the leaves withered, and the vitality gradually lost.
In summary, p-toluenesulfonic acid monohydrate is toxic. In the body of living things, it disrupts their physiology; in the genus of plants, it Those who use it should be cautious to prevent it from harming all living things and ensure the safety of the environment and the health of living beings.

Future Prospects

The P-Toluenesulfonic Acid Monohydrate is also used to transform things. I have been researching this for years, and I have high hopes for its development.
This material property is effective, in the process of multiplication and reaction, and in the catalysis of good. In the future, the innovation of the industry, the color of the method has not yet been developed. Due to its high efficiency and phase protection, it may be used in new industries. And the progress of scientific research, or more new applications may be explored, such as in new energy materials, to help its efficiency increase.
I am convinced that in the next few days, P-Toluenesulfonic Acid Monohydrate will unleash its extraordinary capabilities, and in the field of transformation, it will be a new monument, pushing the world forward, and it will be developed in the future, adding color.

Frequently Asked Questions

What are the main uses of P-Toluenesulfonic Acid Monohydrate?

P-toluenesulfonic acid monohydrate has a wide range of uses. In the field of organic synthesis, it is often used as a catalyst. Due to its acidic properties, it can effectively promote many chemical reactions, such as esterification reactions. In this type of reaction, it can promote the smooth combination of organic acids and alcohols to form esters. In this process, it can speed up the reaction rate and improve the reaction efficiency. It is an indispensable reagent for the preparation of esters in organic synthesis.
In some condensation reactions, it also plays a key role. For example, the condensation of aldosterone and ketone with alcohol, with the help of its catalysis, can promote the formation of acetals or ketals. This reaction is commonly used in organic synthesis to protect carbonyl groups and other operations to prevent unnecessary changes in carbonyl groups in subsequent reactions.
It is also used in polymerization reactions. It can be used as a catalyst for specific polymerization reactions to help monomer molecules connect with each other to form polymer, which is of great significance for regulating the molecular weight and structure of polymers.
In addition, in some drug synthesis processes, it is also used to catalyze specific steps, because it can accurately promote the reaction in the desired direction, which helps to improve the yield and purity of drug synthesis, thereby ensuring the quality and efficacy of drugs. In short, P-toluenesulfonic acid monohydrate plays an important role in many fields such as organic synthesis, chemical production, and drug research and development, and is of great significance in promoting the development of related industries.

What are the Physical Properties of P-Toluenesulfonic Acid Monohydrate?

P-toluenesulfonic acid monohydrate is a common compound in organic chemistry. Its physical properties are quite unique, let me tell you in detail.
Under normal conditions, this compound shows white needle-like or powdery crystals. It is pure and white in appearance and has a good crystalline form. Its melting point is about 103-105 ° C. When heated to this temperature range, it gradually melts from a solid state to a liquid state. This property is crucial for temperature control of many organic synthesis reactions.
P-toluenesulfonic acid monohydrate is highly soluble in water and quickly disperses in water to form a uniform solution. This is because the sulfonic acid group and water molecules can form hydrogen bonds, enhancing its solubility. Not only that, it also has a certain solubility in organic solvents such as alcohols and ethers. This solubility allows it to flexibly select the appropriate solvent according to the reaction requirements when building an organic reaction system to ensure the smooth progress of the reaction.
Its hygroscopicity is also quite significant, and it is easy to absorb moisture in the air. Therefore, special attention should be paid to moisture-proof when storing. It should usually be stored in a dry environment or a sealed container to prevent its state and properties from changing due to moisture absorption, which will affect the subsequent use effect. In addition, although P-toluenesulfonic acid monohydrate is an organic acid, it is highly acidic and is often used as a catalyst in the field of organic synthesis, which can effectively accelerate many reaction processes. This acidic nature is related to its physical properties and is inseparable in practical applications. Together, it affects its performance and function in various chemical reaction scenarios.

What should be paid attention to when storing P-Toluenesulfonic Acid Monohydrate

P-toluenesulfonic acid monohydrate is a commonly used reagent in organic chemistry. When storing, the following matters should be paid attention to:
First, it needs to be placed in a cool and well-ventilated place. This reagent is easily decomposed by heat, and the high temperature environment may cause it to deteriorate, which in turn affects its chemical properties and use effect. If the temperature is too high, it may cause reactions such as the shedding of sulfonic acid groups, which will reduce its purity and activity. A cool and ventilated place can effectively maintain its stability and slow down the decomposition rate.
Second, pay attention to moisture prevention. Because it is a monohydrate, although it contains crystal water, if the humidity in the air is too high, it is easy to cause it to over-absorb water and change its own shape and properties. Moisture may cause it to agglomerate, which affects the access and dispersion in the reaction, making it difficult to carry out Therefore, the humidity of the storage place should be controlled in a suitable range, and the environment can be maintained dry with the help of desiccants.
Third, keep away from fire sources and oxidants. P-toluenesulfonic acid monohydrate is flammable, and it encounters open flames, hot topics or combustion. And its contact with oxidants can easily cause violent reactions. Because sulfonic acid compounds have certain reductivity, they meet strong oxidants or cause dangerous situations such as explosions. When storing, it should be separated from fire sources and various oxidants to ensure safe storage.
Fourth, it should be placed in a sealed container. Sealing can prevent it from excessive contact with air, prevent oxidation and absorb impurities in the air. At the same time, it can prevent the dissipation of volatile components and maintain its concentration and purity stability. After taking it, be sure to seal it in time to avoid affecting subsequent use.
Fifth, the storage place should be kept away from children and unrelated personnel. This reagent is corrosive and irritating to a certain extent. If it accidentally touches the skin, eyes, etc., it may cause injury. Children or people unfamiliar with its nature misuse, or cause serious consequences, so it should be properly placed in a safe place.

What is the preparation method of P-Toluenesulfonic Acid Monohydrate?

The method of preparing P-toluenesulfonic acid monohydrate is to take toluene as the starting material and sulfonate it with concentrated sulfuric acid. The method is to put an appropriate amount of toluene in a reactor equipped with a stirrer, a thermometer and a reflux condenser, and slowly inject concentrated sulfuric acid into it. This process requires strict temperature control, generally maintained at 100 to 120 degrees Celsius. The molar ratio of concentrated sulfuric acid to toluene is about one and a half to one to two to one. After mixing the two, stir vigorously to make the reaction sufficient.
When the reaction is completed, the methyl o-para-position of toluene is attacked by the sulfonic acid group, and P-toluenesulfonic acid is produced. After the reaction is completed, pour the reaction solution into ice water to obtain an aqueous solution of P-toluenesulfonic acid. Then, adjust the pH of the sodium hydroxide solution to a weakly acidic, about pH 5 to 6. After adjusting, distill under reduced pressure to remove the water. At an appropriate time, precipitate P-toluenesulfonic acid crystals.
Then, move the resulting crystals to another container, add an appropriate amount of water, heat up until the crystals are completely dissolved, then cool down and recrystallize. The amount of recrystallized water is about three to five times the mass of the crystal. The cooling rate should be slow, preferably 5 to 10 degrees Celsius per hour. After crystallization, suction filtration to obtain purer P-toluenesulfonic acid.
Finally, place this pure product in a humidifier, adjust the humidity to a suitable level, about 40% to 60%, so that P-toluenesulfonic acid absorbs water into monohydrate. In this way, P-toluenesulfonic acid monohydrate can be obtained.

What are the safety precautions during the use of P-Toluenesulfonic Acid Monohydrate?

P-toluenesulfonic acid monohydrate is a commonly used reagent in the chemical industry. During its use, safety precautions are crucial.
This reagent is highly acidic and can burn the skin and hurt the eyes when touched. Therefore, when using it, be sure to wear protective equipment, such as acid-resistant gloves, protective glasses and laboratory clothes, to protect your own safety. If you accidentally touch it, you should immediately rinse it with a lot of water. If the situation is serious, you need to seek medical attention immediately.
In addition, P-toluenesulfonic acid monohydrate may decompose harmful gases when heated, so the operation should be carried out in a well-ventilated place, or with a fume hood to remove harmful gases and prevent them from accumulating and causing poisoning.
At the same time, this reagent needs to be properly stored. It should be placed in a dry and cool place, away from fire and heat sources, and should be separated from alkalis and oxidants to prevent dangerous reactions. After taking it, the container should also be sealed to prevent it from getting wet or reacting with other substances.
In addition, the dosage should be accurately controlled during use to avoid waste and overreaction. After the experiment is completed, the waste should be properly disposed of in accordance with relevant regulations, and should not be discarded at will to avoid polluting the environment.
In short, when using P-toluenesulfonic acid monohydrate, pay close attention to the above safety matters to ensure safe operation and avoid accidents.