P-Hydroxybenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	839914
Chemical Formula	C6H6O4S
Molar Mass	174.174 g/mol
Appearance	White to off - white crystalline powder
Solubility In Water	Soluble
Pka Value	about 2.6
Boiling Point	Decomposes before boiling
Melting Point	120 - 125 °C
Density	Approx. 1.55 g/cm³
Odor	Odorless
Ph Of Aqueous Solution	Acidic

Packing & Storage

Packing	P - Hydroxybenzenesulfonic Acid: 500g packed in a sealed plastic - lined paper bag.
Storage	P - Hydroxybenzenesulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and direct sunlight. Keep it in a tightly closed container to prevent moisture absorption and contamination. Store separately from incompatible substances like strong oxidizing agents to avoid potential chemical reactions.
Shipping	P - Hydroxybenzenesulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Special care is taken to prevent moisture ingress and exposure to incompatible substances during transit to ensure safety.

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General Information

Historical Development

P-Hydroxybenzenesulfonic Acid, or p-hydroxybenzenesulfonic acid, can be traced back to the early days of chemical research. At that time, chemists were committed to exploring various compounds, and p-hydroxybenzenesulfonic acid also gradually entered the field of vision.
In the early days, due to technical limitations, it was quite difficult to obtain this substance, and it could only be seen in a small number of experiments. As time went by, chemical technology has advanced, people's understanding of it has become more profound, and the preparation method has also been refined. From the original complex and inefficient method, it has gradually become a simpler and more efficient process today.
In the past, p-hydroxybenzenesulfonic acid was only used for specific experiments, but today, its use has been greatly expanded, and it has extraordinary performance in many fields. Its historical evolution, like many achievements in the field of chemistry, has witnessed the process of human exploration and knowledge, and has also paved the way for more discoveries and applications in the future.

Product Overview

Today there is a substance called P-Hydroxybenzenesulfonic Acid. This substance often has a white crystalline appearance and is stable.
The preparation method is obtained by the co-thermal reaction of phenol and sulfuric acid. During the reaction, it is necessary to precisely control the temperature and observe its changes. In this process, the hydroxyl group of phenol and the sulfuric acid group of sulfuric acid are cleverly combined to form this product.
p-hydroxybenzenesulfonic acid has a wide range of uses. In the dye industry, it can be an intermediate to help dyes with brilliant color. In the field of medicine, it also has its function, or participates in drug synthesis, which helps to cure diseases. And in some chemical reactions, it can be used as a catalyst to accelerate the reaction process and improve its efficiency. It is an indispensable material in the chemical industry.

Physical & Chemical Properties

"On the physicochemical properties of p-hydroxybenzenesulfonic acid"
p-hydroxybenzenesulfonic acid is an organic compound. Its color is often white and crystalline, and its properties are stable. In terms of solubility, it is easily soluble in water, because its molecular structure contains hydrophilic groups. Its melting point is quite critical, about a specific temperature range, this property can help to identify and purify it.
It talks about chemical properties and is acidic. Due to the synergistic effect of hydroxyl groups and sulfonic acid groups on the benzene ring, it can neutralize with bases. And under suitable conditions, it can participate in many organic synthesis reactions, such as esterification with alcohols, or substitution reactions with other compounds. The study of its physical and chemical properties is of great significance in the fields of chemical industry and medicine, and can provide a solid theoretical basis for the preparation and application of related products.

Technical Specifications & Labeling

"On the technical specifications and labeling of p-hydroxybenzenesulfonic acid products (commodity parameters) "
There are products of p-hydroxybenzenesulfonic acid today, and its technical specifications and labeling are the key. In terms of technical specifications, it is necessary to clearly analyze its purity, composition ratio, etc. Purity is related to the quality of the product, and the proportion of ingredients affects its performance.
In terms of labeling (commodity parameters), the name, chemical formula and other basic information should be listed in detail. P-hydroxybenzenesulfonic acid, the chemical formula is C H O S, which is the basis for the identification. And it is necessary to indicate the appearance characteristics, usually white to off-white crystalline powder, as a basis for identification. In addition, parameters such as solubility and stability cannot be ignored, so that users can understand their characteristics and make good use of them.

Preparation Method

The method of preparing P - Hydroxybenzenesulfonic Acid, the first raw material. When taking phenol as the base, concentrated sulfuric acid as the sulfonating agent. Both are important materials for preparation.
The preparation process is to place phenol and concentrated sulfuric acid in an appropriate ratio in the reactor. First, premix at low temperature to make the two initially blend. Then slowly heat up to a suitable temperature, which is the key to the reaction. During this period, the temperature control should be precise and there should be no difference.
The reaction steps are as follows: Initial low temperature mixing to make the material affinity. After heating up, the sulfonic acid gradually binds to the para-position of phenol to form P - Hydroxybenzenesulfonic Acid. During the reaction process, close monitoring is required to adjust the conditions in a timely manner. The catalytic mechanism of
should not be underestimated. Sulfuric acid acts as both a sulfonating agent and a catalyst in the reaction. It helps the migration of sulfonic acid groups, accelerates the reaction, and increases the yield. In this way, high-quality P-Hydroxybenzenesulfonic Acid products can be obtained.

Chemical Reactions & Modifications

Guanfu P-Hydroxybenzenesulfonic Acid, its chemical application and modification are quite important to us. The way of its chemical application, the past or not good, want to change and new.
In the chemical application, or the reaction is slow, the yield is not ideal. The reason, or the reaction conditions are not just right, such as temperature, pressure, catalyst, can cause it to change. Therefore, if you want to change it, you should study all factors carefully and find the right one.
As for the modification, it is designed to expand its use and increase its properties. Or adjust the structure of its molecules, or add other things to combine with it, hoping to get better quality. In this way, P-Hydroxybenzenesulfonic Acid in various fields, can do its best, have better performance, to meet the needs of the world.

Synonyms & Product Names

I have studied P - Hydroxybenzenesulfonic Acid for a long time. The name of this object has been called by another name and trade name in the industry. The alias, or according to its nature and appearance, is named to help those in the industry to clarify its characteristics. The trade name involves the business's business, wanting to highlight its differences to attract people's attention.
The alias of husband is also mostly derived from its chemical properties and structure. If it is the position of hydroxy and sulfonic acid groups, or the name of the ortho-variant, although it is not the correct name of P - Hydroxybenzenesulfonic Acid, it is also useful for specific research. As for the name of the product, the merchants go out of the machine, there are those who are pure and effective, wanting to show the excellence of their products; there are those who are named after auspicious and elegant words, hoping to win the hearts of the public.
However, regardless of the nickname or the name of the product, it is important to clarify its origin. Those who study this thing, distinguish its name and reality, and know its similarities and differences, so as to live up to the research, and also benefit from the good use of this thing in industry, medicine and other fields.

Safety & Operational Standards

"P-Hydroxybenzenesulfonic Acid Product Safety and Operation Specifications"
P-Hydroxybenzenesulfonic Acid, the product of chemistry is also. Its unique nature is related to safety and operation standards, and cannot be ignored.
For safety, the first storage. When placed in a cool, dry and well-ventilated place, away from fire and heat sources to prevent accidents. Cover this substance in case of open flame, hot topic, or risk of combustion. And should be stored in separate stores with oxidants and alkalis to avoid their interaction and cause harm.
When operating, it must follow the specifications. The operator needs suitable protective equipment, such as protective clothing, gloves and goggles. Because the substance may be irritating to the skin and eyes. If you accidentally touch it, you should quickly rinse with a lot of water, and seek medical treatment if necessary.
The preparation process requires temperature control and speed control. According to the precise formula and process, operate slowly, and do not rush in. When stirring, the strength and speed should be moderate to ensure a uniform reaction. The treatment of waste gas and waste liquid should not be ignored. It must be properly disposed of in accordance with environmental protection regulations, and do not pollute the environment.
In short, the safety and operation standards of P-Hydroxybenzenesulfonic Acid are related to personal safety and the beauty of the environment. We chemical researchers should observe it carefully and not slack off.

Application Area

In the printing and dyeing industry, it can be used as an auxiliary agent to help the dye color evenly, and the fabric color is bright and lasting. In the pharmaceutical and chemical industry, it is also important. It can be used as a raw material for the synthesis of many drugs and help create a cure and save people.
In the manufacture of detergents, adding this substance can enhance the decontamination power and make stains easy to remove. It is also useful in material science. It may improve the properties of materials and make them more practical and durable. From this point of view, P-Hydroxybenzenesulfonic Acid has significant effects in many fields, and is actually a compound with a wide range of uses and important value.

Research & Development

To taste the way of scientific research, you need to be specialized. Today, P-Hydroxybenzenesulfonic Acid, its research and development are very important.
To study this substance, it is necessary to explore its physicochemical properties. Only by studying its molecular structure and understanding its reaction mechanism can we make progress in synthesis. In the past, the synthesis method may have been cumbersome and the yield was not ideal. However, today is different from the past, science and technology are changing day by day, and scholars are working hard to improve the process to improve the yield and purity.
Looking at its application, it can be used in many fields. The road of medicine can be used as a raw material to help the research and development of new drugs; the field of chemical industry can be used as an auxiliary agent to optimize product performance.
Our generation will carry on the ambitions of our predecessors and make unremitting research, hoping to P-Hydroxybenzenesulfonic the research and development of Acid, and make new achievements to contribute to scientific and technological progress, people's livelihood and well-being.

Toxicity Research

Since modern times, chemical refinement, many new substances have come out, P-Hydroxybenzenesulfonic Acid is also one of them. However, the toxicity of this substance cannot be ignored.
Now we will investigate in detail, to understand its influence on all things. Observe its shape, observe its changes, and test its effect under various environments. After repeated experiments, it was found that this substance at a specific concentration is harmful to some micro-organisms, such as planktonic algae and delicate insects. It may hinder its growth, or disrupt its metabolism, resulting in damage to vitality.
However, the apparent toxicity also depends on the dose. When appropriate, there may be no major harm, and if there is an excess, the disaster will gradually arise. And its toxicity varies in different media. Therefore, in order to clarify its details, it is necessary to study it for a long time and carefully observe it, in order to fully understand its toxicity, so that the world can use it safely, avoid its harm and take advantage of it.

Future Prospects

Guanfu P-Hydroxybenzenesulfonic Acid has come to the fore in the world today. It has a wide range of uses in the field of chemical industry, or it can add color to printing and dyeing, or it can help medicine, and its effect is gradually apparent.
Looking to the future, its development still has a grand vision. With the new technology and the increasing demand, P-Hydroxybenzenesulfonic Acid will be able to change according to the times. With the progress of research and development, the quality should be improved, and the application will also be expanded to all kinds of new frontiers. Or add bricks and tiles to the road of new energy; or contribute to the path of environmental protection.
Although there may be difficulties ahead, opportunities coexist. We scientific researchers should have an enterprising heart and study the background, so that its future development can be bright and brilliant. In various fields, we can shine brightly and become an unfinished cause, which is the expectation of everyone.

Frequently Asked Questions

What is the chemical structure of P-Hydroxybenzenesulfonic Acid?

P-hydroxybenzenesulfonic acid has a unique molecular structure. In this compound, the benzene ring is the base, which is as stable as a rock. On the benzene ring, the hydroxyl group (-OH) and the sulfonic acid group (-SO-H) at the opposite position echo each other.
Hydroxyl groups are formed by connecting hydrogen and oxygen atoms. They are active and can participate in many chemical reactions. They play an extraordinary role in shaping the properties of compounds. They can interact with other substances by means of hydrogen bonds, which affects the attractive force between molecules, and then affects the melting point and solubility of substances.
Sulfonic acid groups are cleverly combined by atoms such as sulfur and oxygen, and the structure of -SO-H gives them acidic properties. Sulfonic acid can basically ionize hydrogen ions, making p-hydroxybenzenesulfonic acid acidic to a certain extent. It can show the generality of acid in aqueous solution and can neutralize with bases.
In this way, the hydroxy group and the sulfonic acid group coexist in the counterposition of the benzene ring. The two interact and cooperate to give p-hydroxybenzenesulfonic acid its unique chemical properties, making it important in many fields such as organic synthesis and chemical production. It can be used as an intermediate to participate in the construction of complex compounds, or to play a unique catalytic role in specific reaction systems. This structure is really the crystallization of the fusion of nature and chemical wisdom, blooming in a unique brilliance in the wonderful world of chemistry.

What are the main uses of P-Hydroxybenzenesulfonic Acid?

P-hydroxybenzenesulfonic acid has a wide range of uses and is useful in various fields.
First, in the dye industry, it is a key intermediate. Due to its unique structure, it can participate in a variety of dye synthesis reactions. Taking reactive dyes as an example, they can react with specific compounds through condensation to make reactive dyes with brilliant color and good fastness. They are widely used in fabric dyeing to make fabrics bright and lasting.
Second, it also has important functions in the field of medicine. It can be used as a starting material or intermediate for drug synthesis. In the synthesis path of many drugs, p-hydroxybenzenesulfonic acid can introduce specific functional groups through a series of reactions, change the molecular properties of drugs, and improve the efficacy and stability of drugs.
Third, it is also indispensable in the preparation of surfactants. Because of its hydrophilicity and certain special structure, surfactants with excellent performance can be prepared after appropriate chemical modification. Such surfactants can play the equivalent functions of emulsification, dispersion and solubilization in daily chemical products such as detergents and shampoos, and improve product quality and performance.
Fourth, in the field of organic synthesis, it is often used as a catalyst. Its acidic properties can catalyze many organic reactions, such as esterification reactions. By catalysis, the reaction rate can be accelerated and the reaction yield can be improved, and its chemical properties before and after the reaction are roughly unchanged, which is quite practical.
Fifth, in the leather industry, it can be used in the leather tanning process. It helps the cross-linking and stability of leather fibers, improves the quality and durability of leather, and makes leather tougher and has a good feel and appearance.

What are the physical properties of P-Hydroxybenzenesulfonic Acid?

P-hydroxybenzenesulfonic acid is an organic compound, and its physical properties are quite unique. Under normal conditions, this substance is mostly in the state of white needle or powder, and the texture is fine.
Its melting point is high, about 295-300 ° C. During the heating process, it needs to reach this specific temperature range to see its gradual melting from solid to liquid. This property is of great significance in operations such as substance identification and separation.
P-hydroxybenzenesulfonic acid has good solubility in water and is easily soluble in water to form a uniform solution. Because its molecular structure contains hydrophilic groups, it can be combined with water molecules by hydrogen bonds and other forces, so it can be well dissolved. And in hot water, its solubility increases significantly, which is a guiding property for its extraction, purification and other processes in related chemical production and experimental operations.
Furthermore, its density is also one of the important physical properties, with a relative density of about 1.07. This value reflects the relationship between the density of the substance and water, and is an indispensable parameter in the study of mixed systems and the design of related process flows.
In addition, p-hydroxybenzenesulfonic acid is relatively stable at room temperature and pressure, and when it encounters specific conditions such as high temperature and strong oxidants, corresponding chemical reactions will also occur. When considering its storage and transportation, it is necessary to fully consider the impact of its physical properties. For example, because it is easily soluble in water, it should be stored in a humid environment to prevent moisture dissolution. Due to its high melting point, if it encounters high temperatures during transportation, appropriate cooling measures need to be taken to ensure its stable properties. All of these are the main points of the physical properties of p-hydroxybenzene sulfonic acid, which is widely used in chemical, pharmaceutical and other fields and cannot be ignored.

What is the preparation method of P-Hydroxybenzenesulfonic Acid?

The method of making p-hydroxybenzenesulfonic acid has existed in ancient times. In the past, in the genus of "Tiangong Kaiwu", although the method of making this acid was not directly described, it can also be obtained by looking at the principles of chemical industry.
To make p-hydroxybenzenesulfonic acid, phenol is often used as the starting material. Phenol is active and can react with sulfonating reagents. Common sulfonating reagents, those with concentrated sulfuric acid. Co-place phenol and concentrated sulfuric acid in a kettle, control its temperature, and slowly heat up to an appropriate degree. The temperature control is the key. If the temperature is low, the reaction will be slow and the yield will not be high; if the temperature is high, side reactions will easily occur, resulting in impure products. When the
reaction is completed, the sulfonic acid group in the concentrated sulfuric acid will replace the hydrogen atom of the hydroxyl para-position on the phenol ring. After this substitution reaction, p-hydroxybenzenesulfonic acid is obtained. After the reaction is completed, the product may be mixed with unreacted raw materials and by-products. It can be purified by recrystallization or other methods according to its physical properties. P-hydroxybenzenesulfonic acid has a certain solubility in water, but the impurities or solubility are different. By recrystallization, the dissolved product is dissolved in an appropriate amount of hot water, while the insoluble impurities are filtered out while the filtrate is cooled, and the p-hydroxybenzenesulfonic acid is crystallized and precipitated. After filtration, washing and drying, pure p-hydroxybenzenesulfonic acid can be obtained.
< br Compared with concentrated sulfuric acid, fuming sulfuric acid contains more sulfur trioxide, has stronger sulfonation ability, and has a faster reaction rate. However, more careful control of the reaction conditions is required to avoid overreaction. In summary, the selection of raw materials, the control of reaction conditions, and the purification of the product are all related to the success or failure of the product.

What are the precautions for P-Hydroxybenzenesulfonic Acid in storage and transportation?

For p-hydroxybenzenesulfonic acid, preservation and transportation are of paramount importance. This substance has certain chemical properties. If it is not handled properly, it may cause quality variation, and even pose a risk of safety.
In terms of preservation, the first dry environment. The cover of p-hydroxybenzenesulfonic acid is easily affected by moisture. If the moisture is too heavy, it may deliquescence, which in turn affects its chemical properties and purity. Therefore, it should be placed in a dry place, and the container used must also be well sealed to prevent the intrusion of external moisture. Furthermore, temperature is also the key. Avoid high temperatures, which can promote chemical reactions, cause decomposition or deterioration. Usually a cool and stable temperature is preferred, and the general room temperature is controlled at 15-25 degrees Celsius.
As for transportation, there are also many precautions. The packaging must be sturdy and reliable to prevent the container from being damaged due to vibration and collision, and the leakage of p-hydroxybenzenesulfonic acid. During transportation, it is necessary to isolate other chemical substances, especially those with oxidation, reduction or large differences in acid and alkali, to prevent mutual reaction. And the transportation environment should also be kept dry, cool, and avoid direct sunlight. If exposed to sunlight for a long time, it may also affect its quality. The escort must be familiar with its characteristics and emergency response methods. In case of leakage, it can be handled quickly and properly to ensure the safety of personnel and the environment from pollution. In this way, it is necessary to ensure that p-hydroxybenzenesulfonic acid is safe in storage and transportation.