Biphenyl-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	351222
Chemical Formula	C12H10O3S
Molar Mass	234.27 g/mol
Appearance	White to off - white solid
Solubility In Water	Soluble
Melting Point	~300 °C
Boiling Point	Decomposes before boiling
Pka Value	Around 1 - 2 (approximate value for sulfonic acid group)
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	Biphenyl - 4 - Sulfonic Acid: Packed in 1 - kg bags for easy handling and storage.
Storage	Biphenyl - 4 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances like strong oxidizing agents. Store in a tightly sealed container to prevent moisture absorption and contamination. Avoid storage near acids or bases that could react with it.
Shipping	Biphenyl - 4 - Sulfonic Acid is shipped in tightly - sealed, corrosion - resistant containers. It's crucial to follow hazardous chemical shipping regulations, ensuring proper labeling and secure handling to prevent spills and environmental risks.

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General Information

Historical Development

The history of Biphenyl-4-Sulfonic Acid can be described. In the past, the study of chemistry gradually became subtle. The first appearance of this acid was obtained by various sages when they explored the wonders of chemical synthesis. At that time, although the experimental method was simple, those who aspire to study it were firm. At the beginning, only one or two of its characteristics were known, and after several years, everyone competed to study it. Either in the reaction method or in the preparation method, there are benefits. Since the beginning, the preparation technique has gradually refined, from crude to exquisite, and the yield has also increased. The use has also become wider and wider, and it has developed its capabilities in various fields. The progress of its history really depends on the efforts of researchers of all dynasties, and it has unremitting efforts to achieve today's appearance, adding a wonderful flower to the Garden of Chemistry.

Product Overview

Today there is a substance called Biphenyl-4-Sulfonic Acid. It is a sulfonated product with a unique structure. What is the state of this substance? Looking at it, it has a biphenyl structure, and the sulfonic acid group is attached to its benzene ring.
This substance has a wide range of uses. In the chemical industry, it is often used as an intermediate to assist in the synthesis of other substances. Because of its hydrophilicity, the sulfonic acid group can increase the solubility of substances in some reaction systems, which facilitates the progress of the reaction. In addition, it can adjust the surface properties of the material and make the material have special properties.
Preparation method, the path of multi-step chemical synthesis. Taking biphenyl as the starting material, through the sulfonation reaction, the sulfonic acid group is introduced into the biphenyl structure to obtain this product. During preparation, the reaction conditions, such as temperature, ratio of reactants, etc., must be carefully controlled to ensure the quality and quantity of the product.

Physical & Chemical Properties

"On the physical and chemical properties of Biphenyl - 4 - Sulfonic Acid"
Biphenyl - 4 - Sulfonic Acid is an organic compound. Its properties, at room temperature, are mostly white crystalline. Looking at its solubility, it has good solubility in water. This is because of its sulfonic acid group, which is hydrophilic and can form hydrogen bonds with water molecules, causing it to be easily soluble in water.
The melting point, as determined by various experiments, is about a specific temperature range. This melting point characteristic provides a key basis for identifying and purifying the substance. Its chemical stability is also considerable, and it is not easy to react violently with common substances under conventional conditions. However, when encountering specific reagents such as strong oxidants, the molecular structure may change, which is also the main point for studying their chemical reaction characteristics.

Technical Specifications & Labeling

"About Biphenyl-4-Sulfonic Acid Product Technical Specifications and Labeling (Commodity Parameters) "
Biphenyl-4-Sulfonic Acid, the method of its preparation, the purity of the first heavy raw material. It must take high-quality biphenyl, and it can only be used after fine filtration to remove all impurities. At the time of reaction, the temperature should be controlled at 100 and 20 degrees, with sulfuric acid as a medium, and it should be stirred slowly, so that it should be uniform and stable.
The label of its product should indicate the ingredients, the content must reach more than 90% and 5%, and the amount of impurities should not exceed half. Looking at its color, it should be white and slightly transparent, without variegated stains. Shape like crystalline powder, even and without agglomeration.
Packaging regulations, to seal the bag to prevent deliquescence. The net quantity of each bag is 25kg, and the bag surface is carefully labeled with the product name, content, batch number and date for easy reference.

Preparation Method

The method of making Biphenyl-4-Sulfonic Acid is related to the raw materials and production process, reaction steps and catalytic mechanism. The raw materials need to select high-purity biphenyl and suitable sulfonation reagents, which are the basis for the reaction.
The production process is mainly based on the sulfonation reaction. In a specific reaction vessel, the temperature, pressure and reaction time are controlled. First, the biphenyl and the sulfonation reagent are added in a certain proportion, and the reaction is promoted by a specific catalyst. The reaction steps are rigorous. At the beginning, it is slowly heated to make the raw materials fully mixed and activated. Then the temperature is gradually raised to a suitable range to accelerate the reaction process, closely monitor the degree of reaction, and adjust the conditions in a timely manner.
In the catalytic mechanism, the catalyst used can reduce the activation energy of the reaction and make the reaction proceed efficiently. After this series of operations, Biphenyl-4-Sulfonic Acid products can be obtained. This production method can ensure product quality and output efficiency.

Chemical Reactions & Modifications

"On the Chemical Reaction and Modification of Biphenyl-4-Sulfonic Acid"
This product of biphenyl-4-sulfonic acid is worth exploring in the way of chemical reaction and modification. Its reaction mechanism is related to many chemical changes. In past studies, due to the combination of this product and other agents, it can be combined and changed, and new substances can be formed.
However, in the reaction, problems are often encountered. If the reaction conditions are severe, the temperature and pressure are slightly different, and the quality of the product is different. And it is not easy to modify it to increase its properties. Or try to add dissimilar elements, or change its structure, but sometimes the results are not as expected.
Looking at this situation, when the chemical properties of biphenyl-4-sulfonic acid are studied in depth, the principle of the reaction is studied in detail, and the conditions are precisely controlled, the chemical reaction and modification of biphenyl-4-sulfonic acid can be improved, and its yield can be obtained.

Synonyms & Product Names

In the field of chemistry, there is now a product name Biphenyl-4-Sulfonic Acid. The alias and trade name of this product are also important for our investigation.
Take its synonym, or cloud biphenyl-4-sulfonic acid, which is named after its structural characteristics. The name is derived from its molecular structure, the base of biphenyl, and the genus of sulfonic acid. As for the trade name, when it is circulated in the market, it may be called "clean and chemical sulfonate", because it is used for certain cleaning and purification purposes, and merchants recognize its efficacy.
This substance is widely used in the chemical industry. It can be used as an adjuvant for catalysts, in the reaction, to help the rate of change and increase the efficiency. It can also be used for fabric printing and dyeing to make the color adhere more firmly and the color more colorful. Therefore, its aliases and trade names are related to its nature and use, and it is also a symbol of industry communication and application.

Safety & Operational Standards

Biphenyl - 4 - Sulfonic Acid Safety and Handling Specifications
Biphenyl - 4 - Sulfonic Acid is a common substance in chemical research. To use it properly, its safety and handling specifications must be clearly stated.
For storage, it should be kept in a cool, dry and well-ventilated place. Avoid open flames and hot topics to prevent accidents. If this substance is heated, it may decompose and generate harmful gases. The container must also be tightly sealed to avoid contact with air and moisture, which may cause changes in quality.
When operating, be sure to follow the regulations. Operators should wear appropriate protective equipment such as protective clothing, gloves and goggles. Because the substance may be irritating to the skin and eyes. The operating environment needs to be ventilated and smooth to prevent the accumulation of harmful gases. If you accidentally touch it, you should rinse it with plenty of water as soon as possible. If it enters the eyes, you must rinse it and seek medical treatment.
Furthermore, after use, the residue should not be discarded at will. Dispose of it properly in accordance with relevant regulations. Or recycle it for reuse, or dispose of it through special procedures to avoid polluting the environment.
All of these are the important rules for the safety and operation of Biphenyl-4-Sulfonic Acid. We chemical researchers must observe it carefully to ensure the safety of the experiment and avoid disasters before they happen.

Application Area

Wenfu Biphenyl - 4 - Sulfonic Acid has a wide range of uses. In the field of printing and dyeing, it can be used as an auxiliary agent to help dye even, so that the color is uniform and the fabric color is gorgeous. In medicine and chemical industry, it also has its use, as a raw material for synthesizing good medicines, helping health. In material development, it can adjust the characteristics of materials and increase their performance. And in catalytic reactions, it can act as a catalyst to promote the speed of reaction and improve the efficiency of production. Therefore, it is indispensable in many fields and has significant effect. It is actually a good material for chemical industry, benefiting everyone.

Research & Development

Taste all the ways, there is a thing called Biphenyl-4-Sulfonic Acid, its nature is very different, and it can be quite promising in all things chemical industry. The rest of the generation studied the heart, exhausted its source, and studied its changes. Begin to observe its properties at the beginning, explore its reaction rules, and try various methods to find the best system. During the period of hardship, I can't say anything. However, it pays off, and gradually gains something.
Study its application, in the industry of dyeing and weaving, it can help the color to be uniform and strong; in the road of medicine, or as an adjuvant, increase the effect of medicine. In our period, we use the technique of improvement to expand its use and improve its quality. I hope that this product will add brilliance to various industries and lead to a new path of science and technology in the future. This is what we study, and we will make unremitting efforts to develop, use it for the world, and benefit people.

Toxicity Research

Taste the nature of a creature, it is related to use and harm. It is important to study the toxicity of Biphenyl-4-Sulfonic Acid today.
Examine its quality in detail and observe the change of its contact with other objects. In various experiments, observe its effect on living beings. Try it with insects, plants and trees to observe the difference in its shape and spirit. See it or cause insects to act abnormally, and their vitality gradually decreases; or make the yellow branches of grass and wood wither, and their vitality decays.
From this, the toxicity of Biphenyl-4-Sulfonic Acid is not light. Use it with caution and should not be ignored. It is necessary to study the methods of protection in detail, so that the harm can be reduced and the profit increased, which is the right way, so as not to leave disasters to all things in the world.

Future Prospects

I have tried to study Biphenyl-4-Sulfonic Acid, and feel that its future development is quite promising. Viewing its properties, it has unique chemical characteristics and can be developed in various fields.
In the field of industry, it can be used as a special additive to help improve the production process, improve product quality, and make the output more sophisticated. In scientific research and exploration, it may be a key material, enlightening new research directions, attracting scholars to delve deeper and explore the unknown.
And with the advance of science and technology, its cognition and application will be improved to a higher level. Or it can develop novel synthesis paths to reduce costs and increase efficiency. It is also expected to shine in the creation of new materials, drug research and development, etc., paving the way for future development, with a bright future.

Frequently Asked Questions

What is the chemical structure of Biphenyl-4-Sulfonic Acid?

Biphenyl-4-Sulfonic Acid is biphenyl-4-sulfonic acid. Its chemical structure can be described as follows: The basic structure of this compound is biphenyl, and the biphenyl is formed by connecting two benzene rings with a single bond. At the 4th position of one of the benzene rings, a sulfonic acid group is connected (-SO-H). In the sulfonic acid group, the sulfur atom is connected to three oxygen atoms, one of which is connected to the sulfur by a double bond, and the other two oxygen atoms each have a negative charge, forming an ionic bond with the hydrogen atom to form the characteristic structure of the sulfonic acid. The biphenyl part endows it with a certain aroma and a relatively stable conjugate system, and the introduction of the sulfonic acid group makes the compound have certain water-soluble and acidic characteristics. This structural property determines that it may have unique uses in the fields of organic synthesis, medicinal chemistry, etc., because sulfonic acid groups can participate in a variety of chemical reactions, such as salt formation reactions, substitution reactions, etc., while biphenyl structures affect the spatial configuration and electron cloud distribution of molecules, which in turn affects their physicochemical properties.

What are the main uses of Biphenyl-4-Sulfonic Acid?

Biphenyl-4-sulfonic acid, this substance has a wide range of uses. In the field of chemical synthesis, it is often a key raw material for the preparation of a variety of important compounds. For example, when synthesizing some dyes with special structures, biphenyl-4-sulfonic acid can act as the basic raw material for constructing special chromophore groups. Through specific chemical reactions, the dye is endowed with unique color and properties, so that it can meet the strict requirements of color and fastness in textile, printing and dyeing industries.
In the field of pharmaceutical research and development, there are also traces. The design and synthesis of some drug molecules will introduce biphenyl-4-sulfonic acid structural fragments. This fragment can affect the spatial configuration and electron cloud distribution of drug molecules, thereby adjusting the interaction between drugs and targets, enhancing drug efficacy or improving their pharmacokinetic properties, and facilitating the creation of new drugs.
In materials science, biphenyl-4-sulfonic acid also has important applications. In the preparation of high-performance polymer materials, it is introduced into the polymer chain as a functional monomer, which can endow the materials with special properties such as ionic conductivity and hydrophilicity. In this way, the prepared materials can be applied to lithium-ion battery separators, proton exchange membranes, and other fields to meet the needs of high-tech industries such as energy storage and conversion.
Furthermore, in the preparation of surfactants, biphenyl-4-sulfonic acid can be chemically modified to introduce hydrophobic groups such as long-chain alkyl groups to construct surfactants with unique amphiphilic structures. Such surfactants can self-assemble in solution to form ordered aggregates such as micelles, showing good emulsification, dispersion, solubilization and other properties, and are widely used in daily chemical, food, oil extraction and other industries.

What are the Physical Properties of Biphenyl-4-Sulfonic Acid?

Biphenyl-4-sulfonic acid is one of the organic compounds. Its physical properties are particularly important, related to its application in various fields.
Looking at its appearance, under room temperature and pressure, it often appears white to light yellow crystalline powder. This color state is easy to visually recognize by the naked eye. In experiments and industrial operations, the purity and properties of the substance can be preliminarily determined according to its color state.
As for the melting point, it is about 300 ° C. The melting point is the inherent physical characteristic of the substance. Accurate determination of the melting point can verify the purity of the compound. If the purity is high, the melting point is sharp and the range is narrow; if it contains impurities, the melting point is reduced and the melting range is widened. This property is of critical significance in quality control and compound identification.
Solubility is also an important physical property. Biphenyl-4-sulfonic acid is soluble in water, which makes it well dispersed and involved in the chemical reaction, separation and purification of aqueous systems. And because it is soluble in water, it can play a unique role in some industrial production processes that use water as a solvent, such as dye preparation, surfactant synthesis, etc. It is also slightly soluble in organic solvents such as ethanol and ether. This difference in solubility helps to use different solvents for separation and purification operations. According to the principle of similar miscibility, suitable solvents can be selected to achieve the purpose of separation or enrichment of the compound.
In addition, the density of biphenyl-4-sulfonic acid also has its own characteristics. Although the specific value will vary slightly due to measurement conditions, it is generally within a certain range. Density data is indispensable in material measurement and reactor design in chemical production. Accurate knowledge of density allows for rational planning of material dosage to ensure that the reaction proceeds as expected, improving production efficiency and product quality.
In summary, the physical properties of biphenyl-4-sulfonic acid, such as appearance, melting point, solubility, density, etc., are interrelated and affect their application in scientific research, industrial production and other fields at different levels. Knowing these properties, it is necessary to make good use of this material.

What are the synthesis methods of Biphenyl-4-Sulfonic Acid?

There are various ways to make biphenyl-4-sulfonic acid. First, biphenyl is used as the starting material to heat with fuming sulfuric acid, which is a common method. When biphenyl encounters fuming sulfuric acid, at an appropriate temperature and time, the sulfonic acid group (-SO-H) can replace the hydrogen atom on the biphenyl benzene ring, and then biphenyl-4-sulfonic acid is obtained. During operation, attention should be paid to temperature control to prevent side reactions from generating impure products. If the temperature is too high, or polysulfated products are generated; if the temperature is too low, the reaction will be slow, time-consuming and low yield.
There is also a method of reacting biphenyl with chlorosulfonic acid. Chlorosulfonic acid has high activity and interacts with biphenyl, which can quickly obtain the target product. However, chlorosulfonic acid is highly corrosive and irritating, and it needs to be operated in a well-ventilated environment with careful protection. After the reaction, the remaining chlorosulfonic acid and by-products need to be properly disposed of to comply with environmental protection regulations.
In addition, other sulfonating reagents or catalytic means are also used. The method of catalysis can reduce the severity of the reaction conditions and improve the reaction efficiency and selectivity. If a specific catalyst is used, it can guide the sulfonic acid group to precisely replace the 4-position hydrogen atom of the biphenyl ring, reduce other position substitution by-products, and improve the purity and yield of the product. However, finding an efficient and suitable catalyst often requires multiple experiments and investigations, considering factors such as catalyst activity, selectivity, stability, and cost.

What are the precautions for Biphenyl-4-Sulfonic Acid during storage and transportation?

For biphenyl-4-sulfonic acid, many matters need to be paid attention to during storage and transportation. This is a chemical substance, which has characteristics. If it is slightly careless, it may cause harm.
First words storage, must choose a cool, dry and well-ventilated place. Because of its fear of moisture, moisture is easy to cause qualitative changes, resulting in loss of its efficacy. The temperature and humidity of the warehouse should be carefully controlled, and the temperature should be moderate, not too high. If it is high, it may cause chemical changes; moisture also needs to be controlled to avoid deliquescence. And it should be placed separately from oxidants, alkalis and other substances to avoid mutual reaction and danger.
As for transportation, the packaging must be tight. Use appropriate materials to ensure that they do not leak or leak. Transportation vehicles should also be clean, dry, and equipped with corresponding protective gear. During driving, avoid bumps and vibrations to prevent package damage. Transportation personnel should be aware of its characteristics and know how to deal with emergencies. Do not mix with contraband items to ensure safe transportation. This is all about the storage and transportation of biphenyl-4-sulfonic acid. Everything is important and should not be ignored.