Ast 1306 (P-Toluenesulfonic Acid)

Lingxian Chemical

Specifications

HS Code	841002
Chemical Formula	C7H8O3S
Molar Mass	172.202 g/mol
Appearance	white crystalline solid
Odor	pungent
Solubility In Water	soluble
Melting Point	103 - 105 °C
Boiling Point	140 °C (2.67 kPa)
Density	1.24 g/cm³
Acidity	strong organic acid
Pka	~ -2.8
Stability	stable under normal conditions

Packing & Storage

Packing	5 - kg bags of Ast 1306 (P - Toluenesulfonic Acid) with tight - sealed chemical - resistant packaging.
Storage	Ast 1306 (p - Toluenesulfonic Acid) should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in tightly - sealed containers to prevent moisture absorption, as it can react with water. It should be segregated from incompatible substances to avoid potential chemical reactions and ensure safety.
Shipping	Ast 1306 (P - Toluenesulfonic Acid) is shipped in well - sealed, corrosion - resistant containers. Shipment adheres to strict chemical transport regulations to ensure safe transit of this potentially hazardous chemical.

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General Information

Historical Development

Ast 1306 (p-toluenesulfonic acid) is also a product of chemistry. The rise of its things does not happen overnight. In the past, all the sages worked hard in the field of chemistry and studied the physical properties. The initial appearance of p-toluenesulfonic acid was the result of thoughtful inquiry by the wise.
At the beginning, it was difficult to prepare, and the amount produced was small, and it was only used for niche research. However, as the years passed, the wisdom of the scholars gradually developed, and the techniques became more and more exquisite. The preparation method was improved, and its mass production increased.
Since its inception, it has been used in chemical industry. Or as a catalytic agent to promote the speed of reaction; or in organic synthesis, as a key material. Looking at its development path, it has gradually become an indispensable part of the chemical industry, which is one of the great testimonies of chemical evolution.

Product Overview

Ast 1306 (p-toluenesulfonic acid) is a commonly used product in the chemical industry. Its color is white, crystalline, and highly acidic. In the field of organic synthesis, it has a wide range of uses. It is often a catalyst for esterification, dehydration and other reactions, which can promote the speed of reaction and increase the rate of yield. It is active and can efficiently catalyze many organic conversions under suitable conditions. And its stability is good, easy to store and use. However, it is highly acidic, so it needs to be used with caution to prevent its rot from hurting people. In industry, it is made by fine processes to ensure its high purity and quality. It plays a key role in chemical synthesis and is an important agent in organic synthesis.

Physical & Chemical Properties

Ast 1306 (p-toluenesulfonic acid) has unique physical and chemical properties. Its shape is often white crystalline, and those with pure quality are white and have good crystal shape. Its melting point is about 103-105 ° C. At this temperature, it gradually melts from the solid state. It has special solubility and can be soluble in water, alcohol and ether. This is due to the interaction of polar groups in the molecule with solvents. It is highly acidic and can be used as a catalyst for many chemical reactions. For example, in the esterification reaction, it can promote the formation of carboxylic acids and alcohols into esters, increase the reaction rate, and cover it can protonate carbonyl groups, which is conducive to the attack of nucleophiles. And the chemical properties are stable, and it can also react when it encounters strong oxidizing agents. In the field of organic synthesis, it has a wide range of uses and is a commonly used reagent for chemical researchers.

Technical Specifications & Labeling

"Technical Specifications and Labeling (Commodity Parameters) of AST 1306 (p-toluenesulfonic Acid) Products"
AST 1306, that is, p-toluenesulfonic acid, its technical specifications are of paramount importance. The appearance of this product should be white crystalline powder with a slight and special smell. The purity should be above 98% and the water content should not be higher than 0.5%. The melting point should be between 103 - 105 ° C to ensure stable quality.
In terms of labeling, the packaging should clearly indicate the product name "AST 1306 (p-toluenesulfonic acid) ", and label the content, production date, shelf life and other commodity parameters. Storage precautions should also be clearly marked. If it should be stored in a dry and cool place, avoid mixing with oxidants and alkalis to prevent dangerous reactions. Strictly follow this technical specification and labeling requirements to ensure product quality and safety.

Preparation Method

To prepare Ast 1306 (p-toluenesulfonic acid), the method is as follows: First prepare all raw materials, p-toluene and sulfuric acid as the main. With the process of fine grinding, the two are combined in phase. Put p-toluene in a kettle, slowly inject sulfuric acid into it, control its temperature, and observe the change of the reaction.
In the step of the reaction, the two gradually melt at the beginning, and the temperature rises. After the reaction is intense, it is necessary to stabilize its temperature and not cause too much drama. When it is finished, the product contains impurities and must be refined.
The method of refining, by distillation, extraction and other techniques, to remove its impurities and obtain pure products. This is related to the catalytic mechanism, sulfuric acid is used to urge the reaction to go quickly. For the preparation of toluenesulfonic acid, the raw materials and processes are coordinated, the reaction steps are carried out, and the catalysis is appropriate, and the best products can be obtained.

Chemical Reactions & Modifications

In this study of Ast 1306 (p-toluenesulfonic acid), its chemical reaction and modification are the key. P-toluenesulfonic acid has the general properties of acid and is an important catalyst in many chemical reactions.
Its chemical reaction is often involved in esterification, which can promote alcohol and acid to form esters and improve the reaction rate. However, there are also deficiencies, such as strong corrosiveness, vulnerable equipment, and difficult to separate after application, which affects the purity of the product.
is a modification, or a method of finding mild catalysis to reduce corrosion; or a separation technique to facilitate product purification. Through this, Ast 1306 can be better used in the chemical industry, creating profits for the industrial industry, and also in line with the purpose of green chemistry. The chemical reaction should be efficient, environmentally friendly and economical.

Synonyms & Product Names

"On the Synonyms and Trade Names of Ast 1306 (p-toluenesulfonic Acid) "
Ast 1306, that is, p-toluenesulfonic acid, is very important in the field of chemical industry. There are many synonyms, such as p-toluenesulfonic acid. P-toluenesulfonic acid, with its unique chemical properties, is effective as a catalyst in many reactions.
As far as trade names are concerned, there are also different names on the market. This is due to differences in manufacturers and uses. However, no matter what the name is, it refers to this specific chemical substance. Although many synonyms and trade names are different, the substances involved are essentially the same. Knowing its synonyms and trade names is of critical significance in chemical research, production and application, which can help researchers accurately select materials and clarify characteristics, which is of great benefit to the development of the chemical industry.

Safety & Operational Standards

Ast 1306 (p-toluenesulfonic acid) Product Safety and Operation Specification
Fu Ast 1306, that is, p-toluenesulfonic acid, is commonly used in chemical experiments and industrial production. Its nature is strongly acidic, which is related to safety and operation standards, and cannot be ignored.
The way to safety, the first protection. Anyone who comes into contact with this object must wear appropriate protective equipment. For example, use acid and alkali-resistant gloves to protect their hands to prevent burns from skin contact. Wear anti-goggles to avoid splashing into the eyes and causing damage to the eyes. If in a place with poor ventilation, it should be equipped with respiratory protective equipment to avoid inhaling its volatile gas and hurting its respiratory tract.
When operating, it is advisable to be cautious. When taking it, use clean and suitable utensils, take it according to the amount, and do not spill it. When it dissolves in water, it must be poured in slowly, and it should be stirred constantly. The cover is hot in contact with water. If it goes the other way, it may cause droplets to splash and endanger people.
Storage rules are also urgent. It should be placed in a cool, dry and well-ventilated place, away from fires and heat sources. Do not mix with alkalis, oxidants, etc., to prevent severe reactions. Packaging must be tight to prevent leakage.
If it is not fortunate to come into contact with the skin, rinse quickly with a large amount of flowing water, followed by boric acid solution, and seek medical attention if necessary. If it enters the eye, rinse immediately with a large amount of water and seek medical attention immediately. If accidentally inhaled, quickly leave the scene to the fresh air, breathing difficulties will be oxygen, and urgent medical.
This is the standard of Ast 1306 product safety and operation. Practitioners must keep it in mind and proceed with caution to ensure safety.

Application Area

Ast 1306 (p-toluenesulfonic acid) is widely used in various fields. In the field of organic synthesis, it is often used as a catalyst. For example, the esterification reaction of alcohol and carboxylic acid can promote the smooth reaction, increase the reaction rate, and increase the yield. In some condensation reactions, it can also play a role in the formation of chemical bonds. In industrial production, it is also indispensable in resin synthesis and other processes, which can regulate the reaction process and improve product quality. In the pharmaceutical and chemical industry, its catalytic power is also significant for specific drug synthesis steps, helping to build complex molecular structures and promote the progress of pharmaceutical research and development. It shows its unique value and importance in many application fields.

Research & Development

Yu Taste is dedicated to the research of chemical products, and recently studied Ast 1306 (p-toluenesulfonic acid), and has a lot of insights. This product is widely used and has a significant effect in the field of organic synthesis.
At the beginning, the preparation method was explored, and the selection of raw materials and reaction conditions needed to be carefully considered. If the temperature is too high, the product is impure, and if it is too low, the reaction is slow. After several tests, the method of optimization was finally obtained, and the yield was improved.
Then its application was developed and expanded. It was found that in the synthesis of many new materials, the addition of this product can accelerate the reaction process and improve the quality of the product. Today, we are still working tirelessly to tap its potential, open up new application fields, and make Ast 1306 play a greater role in industrial development to promote the progress of the chemical industry.

Toxicity Research

Modern chemical refinement is related to the toxicity research of various compounds, which is quite important. Ast 1306 (p-toluenesulfonic acid) is a substance whose toxicity investigation should not be underestimated.
p-toluenesulfonic acid has the general nature of acid. Although it is not a highly toxic product, it should not be ignored. If it is accidentally touched, there is a risk of damage to the skin and eyes. Entering the body can cause visceral discomfort and damage health.
Looking at it in the environment, it also has an impact. If it is discarded wantonly, it will seep into water, soil, or sewage sources, harming living things. Therefore, when using it, follow the regulations and take good protection. All aspects of its production, application, and disposal must be carefully controlled to minimize its toxicity and protect the safety of nature and the human body.

Future Prospects

Taste the way of science and technology, with each passing day, I am also looking forward to the future in the chemical product Ast 1306 (p-toluenesulfonic acid). This product is widely used in the field of organic synthesis, and is a good catalyst. It can promote various reactions, increase its rate, and increase its yield.
Looking forward to the future, I hope that its purity will rise, and there will be fewer impurities, so that the reaction effect will be better. And hope that the preparation method can be more simple, environmentally friendly, reduce energy consumption, and less pollution, which is in line with the purpose of today's green chemistry. If you think about its application, it may be expanded in new fields, such as the preparation of new energy materials, or the synthesis of biomedicine, etc., it will contribute to all kinds of scientific and technological progress, so as to achieve the unfinished business and realize the dream of the future.

Frequently Asked Questions

What are the main uses of Ast 1306 (P-Toluenesulfonic Acid)?

"Tiangong Wuwu" was written by Sung Xing in the Ming Dynasty, and it is the principle of materials and the matter of engineering. Today, there is "1. + Ast + 1306 (P-toluenesulfonic acid) What is the main use?", let me tell you.
P-toluenesulfonic acid is used for many purposes. First, in the field of synthesis, it is often used as a catalyst. There is an important part of synthesis, and it is important for chemical reactions. It is generally catalytic to accelerate or change the reaction path. P-toluenesulfonic acid is acidic and can be used in reactions such as polyesterification, etherification, and fusion to promote the reaction. For example, the esterification reaction of alcohol and carboxylic acid, the reaction rate is generally slow, but there is P-toluenesulfonic acid catalysis, the reaction rate is greatly increased, so that the reaction is generated, and it is especially commonly used in the synthesis of fragrances, oils, etc.
Second, in some polymerization reactions, it also has its own shadow. Polymerization reactions can be synthesized into macromolecules by small molecules, and P-toluenesulfonic acid can control the rate and degree of polymerization reactions, helping to synthesize polymers with specific properties, such as some special plastics and oils. This catalytic effect is important, allowing polymers to have specific molecular weights and properties.
Third, in the petrochemical industry, P-toluenesulfonic acid can be used in oil concentrate. Oil often contains a lot of gold, and it needs to be refined to improve the quality of the product. It can be reversed and removed from some parts of the oil, so that the oil can reach a higher degree of performance requirements, and ensure the efficiency of the use of petroleum products.
Fourth, it is also useful for the industry. It is a technique of coating a layer of gold on the surface of the object. P-toluenesulfonic acid can improve the properties of the liquid, improve the uniformity of the gold, make the product denser, better light, and increase the resistance of the material.
Of course, P-toluenesulfonic acid has a wide range of uses, and is indispensable in many industries such as synthesis, polymerization, petrochemical, and so on. It promotes the development of multi-work.

2. What are the physical properties of Ast 1306 (P-Toluenesulfonic Acid)?

In the book of "Heavenly Engineering", it is necessary to use all kinds of techniques and techniques to create and make things. In this case, P-Toluenesulfonic Acid (toluenesulfonic acid), its physical properties are very good.
Toluenesulfonic acid is often white crystalline, like the snow that falls at the beginning of winter, and the ground is very low. Its melting temperature is 103-105 ° C, and its temperature is so high that it is like the melting water of ice, which solidifies the liquid phase of the flow.
This substance is easily soluble in water, and it melts when it enters water. It is like melting in water, and it is very low. And it can be easily dissolved in alcohols, ethers, etc., and exhibits good solubility. Its absorbency, if exposed to air, is like a dry sea in contact with water, quickly adsorbs water vapor, so it needs to be properly stored to prevent moisture dissolution.
Furthermore, toluenesulfonic acid is acidic, not as strong as sulfuric acid, etc. However, it cannot be ignored. Its acidity can be used in catalysis, such as esterification, and its effect is great.
In addition, its taste is not pungent, but it is also common and has a slightly special smell. These physical properties make toluenesulfonic acid indispensable in many fields such as chemical industry and synthesis. It is like a good tool in the hands of a skilled craftsman, each with its own use.

3. What are the precautions for Ast 1306 (P-Toluenesulfonic Acid) during storage and transportation?

3. + Ast + 1306 (p-toluenesulfonic acid) in storage and transportation, there are a number of things to pay attention to.
First, p-toluenesulfonic acid is corrosive and can cause burns when touching the human body. Therefore, when handling, be sure to wear appropriate protective equipment, such as gloves, protective glasses and protective clothing, to avoid contact with the skin and eyes. If you accidentally touch it, you need to rinse it with plenty of water immediately and seek medical treatment.
Second, this substance may be harmful to the environment, and it is necessary to prevent its leakage during storage and transportation. If there is a leakage, it should be properly handled in accordance with relevant regulations in a timely manner to prevent contamination of soil, water sources, etc.
Third, p-toluenesulfonic acid is easily decomposed when heated, releasing irritating gases. Therefore, it should be stored in a cool and ventilated place, away from fire and heat sources, and the warehouse temperature should not exceed 30 ° C. When storing, it should also be stored separately from oxidants and alkalis, and mixed storage should not be avoided.
Fourth, during transportation, it is necessary to ensure that the container does not leak, collapse, fall, or damage. Transportation vehicles should be equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. During the journey, it is necessary to prevent exposure to the sun, rain, and high temperature.
After all, when storing and transporting p-toluenesulfonic acid, relevant safety procedures and operating guidelines must be strictly followed to ensure the safety of personnel, the safety of the environment, and the safety of transportation.

4. What are the safety precautions when using Ast 1306 (P-Toluenesulfonic Acid)?

P-toluenesulfonic acid (P-Toluenesulfonic Acid) is a commonly used catalyst in organic synthesis. When using this acid, safety measures are essential and must not be negligent.
The first to bear the brunt is to prevent contact. This acid is corrosive and can cause burns when it comes into contact with the skin and eyes. Therefore, when operating, wear complete protective equipment. Wear acid and alkali-resistant protective clothing, which can resist acid penetration and protect the whole body; wear protective gloves, which must be made of acid-resistant rubber or plastic to ensure that the hands do not touch the acid; wear protective glasses or masks, which can prevent acid from splashing into the eyes and keep the eyes safe.
Second, pay attention to respiratory protection. If the operating environment is not well ventilated, the acid mist will evaporate, and inhalation can hurt the respiratory tract. It is suitable for operation in a fume hood, which is a good place to ensure air circulation and drain the acid mist in time. If there is no fume hood, you must also wear a gas mask, and choose an acid gas filter function to effectively protect.
Furthermore, pay attention to storage safety. P-toluenesulfonic acid should be stored in a cool, dry and well-ventilated place, away from fires and heat sources. Because of its flammability, it can cause danger in case of open flames and hot topics. At the same time, it should be stored separately from oxidants and alkalis, and must not be mixed to prevent chemical reactions from occurring, resulting in accidents.
In addition, emergency treatment equipment should be prepared at the operation site. Such as fire equipment, in case of fire; eye washers and showers, if accidentally come into contact with acid, can be washed in time to reduce injuries. Operators should also be familiar with emergency treatment methods, and can respond quickly in the event of an accident.
In short, the use of P-toluenesulfonic acid must strictly follow safety procedures and implement protective measures, so as to ensure safe operation and avoid accidents.

5. What are the common reactions of Ast 1306 (P-Toluenesulfonic Acid) with other chemicals?

P-toluenesulfonic acid ($p - $Toluenesulfonic Acid) is active and is often seen in various chemical reactions.
First, esterification reaction. When alcohol and carboxylic acid are catalyzed by this acid, when they are co-heated, the carboxyl group in the carboxylic acid dehydrates and condenses with the hydroxyl group of the alcohol to form an ester and water. For example, ethyl acetate can be obtained from ethanol and acetic acid under the catalysis of p-toluenesulfonic acid. This is a commonly used method for organic synthesis of esters. Due to the high catalytic activity of this acid, the reaction conditions are relatively mild.
Second, etherification reaction. Alcohols can undergo intermolecular dehydration to ether under the action of p-toluenesulfonic acid. Taking ethanol as an example, under appropriate conditions, two molecules of ethanol are catalyzed by it to dehydroxy one molecule and hydroxy the other to form ether.
Third, the reaction of acetal (ketone). Under the catalysis of p-toluenesulfonic acid, the carbonyl group of aldehyde (ketone) and the hydroxyl group of alcohol are condensed to form hemiacetal (ketone), and then acetal (ketone). This reaction is often used in organic synthesis as a means to protect the carbonyl group. After the reaction is completed, it is deprotected under appropriate conditions.
Fourth, the alkylation and acylation of aromatics. Aromatic hydrocarbons and halogenated hydrocarbons or acyl halides can undergo electrophilic substitution under the catalysis of p-toluenesulfonic acid, and alkyl or acyl groups can be introduced into the aromatic ring. This is an important path for the construction of aryl compounds.
Fifth, dehydration reaction. Under the action of this acid, some alcohols can undergo intramolecular dehydration to form olefins. For example, isopropanol under the catalytic heating of p-toluenesulfonic acid removes a molecule of water and converts it into propylene.
p-toluenesulfonic acid is widely used in the field of organic synthesis due to its strong acidity, high catalytic activity and relatively mild conditions. It is an important help for organic synthesis.