Products

4-Hydroxybenzenesulfonic Acid Cas 98-67-9

Lingxian Chemical

Specifications

HS Code

492785

Chemical Name 4-Hydroxybenzenesulfonic acid
Cas Number 98-67-9
Molecular Formula C6H6O4S
Molecular Weight 174.17 g/mol
Appearance White to off - white crystalline powder
Solubility Soluble in water
Pka about 2.62
Melting Point 295 - 300 °C (decomposes)
Boiling Point Decomposes before boiling
Packing & Storage
Packing 500g of 4 - Hydroxybenzenesulfonic Acid (CAS 98 - 67 - 9) packaged in a sealed plastic bag.
Storage 4 - Hydroxybenzenesulfonic acid (CAS 98 - 67 - 9) should be stored in a cool, dry, well - ventilated area. Keep it away from heat, ignition sources, and incompatible substances like strong oxidizing agents. Store in tightly sealed containers to prevent moisture absorption, which could affect its chemical properties and purity.
Shipping 4 - Hydroxybenzenesulfonic Acid (CAS 98 - 67 - 9) is typically shipped in tightly - sealed containers, safeguarded from moisture and incompatible substances. Shipments adhere to strict chemical transport regulations for safe transit.
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4-Hydroxybenzenesulfonic Acid Cas 98-67-9
General Information
Historical Development
4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9), the history of its development has been a long time. In the past, various sages studied diligently in the field of chemistry, wanting to explore the mysteries of matter. At the beginning, the understanding of this acid was still shallow, and only a little bit of its appearance was known.
However, with the passage of time, the efforts of scholars have been unremitting, and the research has gradually deepened. Through repeated experiments, its properties have been analyzed and its reactions have been explored. People have been working hard for years and months to understand more of its characteristics. In the field of chemical industry, the use of this acid has gradually emerged, and it has emerged in many reactions. From the initial ignorance to the familiarity of later generations, during which countless wise men worked hard, its historical development is a magnificent chapter of chemical exploration, opening up a broader research world for future generations.
Product Overview
4-Hydroxybenzenesulfonic acid, CAS No. 98-67-9, this compound is an important chemical raw material. Its shape is mostly white crystalline powder with good water solubility.
4-Hydroxybenzenesulfonic acid is widely used in many fields. In the process of pharmaceutical synthesis, it is often a key intermediate, helping to prepare a variety of drugs. In the dye industry, it also plays an important role in the synthesis of specific color dyes. Its chemical properties are active, and the hydroxyl and sulfonic acid groups on the benzene ring can participate in a variety of chemical reactions. Through these reactions, many derivatives with unique properties can be derived.
In industrial production, 4-hydroxybenzenesulfonic acid is synthesized by a specific process, and the reaction conditions need to be strictly controlled to ensure product quality and yield. This compound has a significant position in the chemical industry and plays an extraordinary role in promoting the development of related fields.
Physical & Chemical Properties
4-Hydroxybenzenesulfonic acid (Cas 98-67-9), its physical and chemical properties can be investigated. Looking at its shape, it often shows the shape of white crystals, which is a sign of its physical appearance. In terms of solubility, it is easily soluble in water. Due to the presence of hydrophilic groups in the molecular structure, it has a strong affinity in water.
In terms of its chemistry, the sulfonic acid group is acidic and can neutralize with alkali substances to form corresponding salts. The presence of hydroxyl groups also allows this compound to participate in many reactions such as nucleophilic substitution. This compound is widely used in the chemical industry, such as in the synthesis of dyes and pharmaceuticals. It often plays a key role due to its unique physical and chemical properties and is an important raw material for many chemical reactions.
Technical Specifications & Labeling
4-Hydroxybenzenesulfonic Acid (4-Hydroxybenzenesulfonic Acid, Cas 98-67-9) Technical Specifications and Identification (Product Parameters):
Preparation of this product requires rigorous methods. Take an appropriate amount of raw materials first, put them in a clean vessel, control the temperature with precise heat, and stir slowly to fully react. Its color should be pure, in a crystal clear state, without variegation and odor. On the
logo, when the chemical name of the declaration "4 - Hydroxybenzenesulfonic Acid", Cas number "98 - 67 - 9", and key commodity parameters, such as purity, content, etc., the handwriting must be clear and legible, so as to identify and avoid confusion, so as to meet the technical specifications and labeling requirements.
Preparation Method
To prepare 4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9), the method is as follows:
Raw material and production process: Phenol is used as the initial raw material, and sulfuric acid is used as the sulfonation reagent. Phenol is placed in the reaction kettle and slowly injected with sulfuric acid in proportion. These two are the key raw materials. The production process requires precise temperature control and duration.
Reaction steps: First heat up to a specific temperature range, so that phenol and sulfuric acid can be fully contacted and reacted. During this period, the reaction phenomenon is closely observed, and the temperature and stirring rate are fine-tuned in a timely manner to ensure the smooth progress of the reaction. When the reaction reaches the expected level, transfer to follow-up treatment.
Catalytic mechanism: Sulfuric acid acts as a catalyst in this reaction, reducing the activation energy Through fine regulation of reaction conditions, the reaction is carried out efficiently and directionally to obtain high-purity 4-Hydroxybenzenesulfonic Acid products.
Chemical Reactions & Modifications
4-Hydroxybenzenesulfonic acid (Cas 98-67-9), its reaction and modification are very important in the process of chemical research. Looking at this substance, its reaction is changeable, and it is related to many chemical treatments. If you want to change its properties, you need to explore its origin. In the past, all the sages tried to apply clever methods to the reaction, or adjust the temperature, or change the agent, hoping to get good results.
If you want to change its activity, you can observe the change of reaction conditions. If the temperature is high, you should be fast, but if it is too high, it will be chaotic; if the agent is suitable, it should be smooth, and if it is not suitable, it will be delayed. Therefore, the selection of temperature-regulating agents is essential for modification. And the wonderful structure of it also depends on the direction of the reaction. Analyze its bonding In this way, the reaction and modification of 4-hydroxybenzenesulfonic acid can be achieved, which will add luster to the chemical industry and live up to the efforts of researchers.
Synonyms & Product Names
4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9) This product is synonymous with the name, or p-hydroxybenzenesulfonic acid. It is sold in the market and is mostly known by this name.
P-hydroxybenzenesulfonic acid is widely used in the field of chemical industry. It can be a raw material for dyes and pharmaceutical synthesis. Its properties are stable. When reacting, it is often used as a key agent.
Watching the past, chemical experts have studied this product and strived to improve. Based on it, expanding new paths has enabled many products to come out.
Merchants are in the market and mark their names with p-hydroxybenzenesulfonic acid. Buyers know what they mean when they hear it. And its synonymous name is also well known in the industry. Although it is called differently, it is actually the same thing, promoting the prosperity of chemical industry together.
Safety & Operational Standards
4 - Safe operation of Hydroxybenzenesulfonic Acid
4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9), which is also useful in the field of production and work. However, if you want to use it, you must know the safety of its operation, so that you can get a worry.
#First, the need for storage
This should be placed in a place where it is dry and well-connected. Avoid direct exposure to sunlight to prevent its nature. And do not mix with oxidizing, burning and other substances, so that the two meet, or cause a strong reaction, which will endanger life. The storage device is corrosion-resistant, such as glass and special plastics, to ensure that it is sealed and leaked, so that it is not outside.
#Second, the operation is not
The operation is not carried out, and it is appropriate to wear it for protection. The eyes are protected to prevent the liquid from being damaged; the mask is poisonous to prevent it from entering the respiratory tract; the corrosion-resistant gloves, work clothes, leather and clothing. The operation should be carried out in the pass, so that the harmful water and steaming can be quickly discharged. When the solution is mixed, the water should be imported into the water, and the opposite should not be done to prevent the strong release of the liquid.
#Third, urgent strategy
If the skin is accidentally connected, quickly wash it with a lot of water, and then wash it with soap. If it enters the eyes, stand the eyes, and wash it with water or physiological water, as soon as possible. If you eat, do not urge vomiting, quickly wash water, and send it urgently for treatment. If there is a leak, first remove the source of fire, so as not to explode. A small amount of leakage, cover it with sand, dry lime, etc., and collect it in a dense container. A large amount of leakage, the embankment is blocked, and it is moved to the container with a pump, and then properly handled.
As a result, the operation of 4-Hydroxybenzenesulfonic Acid must follow the safe operation procedures to prevent accidents and ensure the safety of people's environment.
Application Area
4-Hydroxybenzenesulfonic acid (Cas 98-67-9) has a wide range of uses. In the field of medicine, it can be used as a raw material to prepare specific drugs and help adjust the physiology of the body. In the printing and dyeing industry, it can be used as an auxiliary to make dyes easier to color and fix, and the fabric color is gorgeous and long-lasting. In chemical synthesis, it is an important intermediate and participates in the synthesis of many organic compounds. In some detergents, it may be able to optimize decontamination performance. This compound has multiple uses and is of critical significance in various fields, such as medicine and work. It is indispensable and is actually a widely used chemical good.
Research & Development
4-Hydroxybenzenesulfonic acid (Cas 98-67-9) is a chemical product that our generation has dedicated to studying. Today, this compound has shown its important value in many fields.
We have carefully observed its properties, observed its structure, and studied its experimental data, hoping to gain insight into its underlying characteristics. After repeated trials, we have explored its reaction law under specific conditions, which lays the foundation for the development of new applications.
The past research on this material, although there have been gains, there is still a vast area for development. We want to use new technologies and new methods to tap its potential and seek opportunities for breakthroughs in the pharmaceutical, materials and other industries.
Our generation is dedicated to promoting the research and development of 4-hydroxybenzenesulfonic acid with scientific methods and diligence, with the aim of bringing new changes to the industry, creating more practical results, and benefiting everyone.
Toxicity Research
4 - Hydroxybenzenesulfonic Acid Toxicity Studies
Since recent times, the research on chemical products has become more and more popular. 4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9) are also the objects of various researches. We take toxicity research as our priority, and observe the properties of this product in detail.
Observe its physicochemical properties, and we can know the characteristics of its structure and reaction. However, it is related to toxicity, and we must investigate it with caution. After various experiments, observe its impact on living things. Take small animals as models, and apply this product to observe its physiological changes and behavioral differences.
See those who ingest this product, or damage to their organs, and dysfunction. And in the environment, it may also have the effect of persistence, affecting the ecological balance. Although the research has not been completed, the signs of toxicity have already emerged. It is necessary to conduct in-depth research to clarify the details of its toxicity, so as to be vigilant for those who use this product and protect the environment.
Future Prospects
4 - Hydroxybenzenesulfonic Acid (Cas 98 - 67 - 9) has great potential in the field of chemical industry. It is unique in nature and has a wide range of uses. It can be involved in medicine, dyeing and weaving.
Although the current knowledge is limited, the future development is full of expectations. Or in the development of medicine, help the advent of new agents, solve the suffering of patients; or in the dyeing and weaving process, improve techniques, and enhance the beauty of cloth.
Our scientific researchers should investigate the mysteries of this substance and explore the unknown. With time, we will be able to open up new frontiers, make it used by the world, and become a bright pearl of the future chemical industry, benefiting all people. This is our generation's vision for its future.
Frequently Asked Questions
What are the main uses of 4-Hydroxybenzenesulfonic Acid Cas 98-67-9?
4-Hydroxybenzenesulfonic acid (Cas 98-67-9) has a wide range of uses. In the field of industry, it is an important raw material for the preparation of dyes. It can be combined with other compounds through specific chemical reactions to produce colorful dyes, which are used in textiles, printing and dyeing and other industries to make fabrics have a brilliant color.
In the field of pharmaceutical and chemical industry, it also plays a role that cannot be ignored. It is often an intermediate for the synthesis of certain drugs. Through fine chemical synthesis steps, it can be converted into pharmaceutical ingredients with specific pharmacological activities through ingenious reactions with other chemical substances, contributing to human health.
Furthermore, in the preparation of surfactants, 4-hydroxybenzenesulfonic acid also has a place. Its characteristics can help improve the performance of surfactants, enhance their decontamination and emulsification effects, and are used in many cleaning products to provide assistance for the cleanliness of daily life.
In addition, in some organic synthesis reactions, it can act as a catalyst, accelerate the process of the reaction, improve the reaction efficiency, reduce the conditions required for the reaction, and play a key role in the field of organic chemical synthesis, promoting the development of organic synthetic chemistry.
What are the physical properties of 4-Hydroxybenzenesulfonic Acid Cas 98-67-9?
4-Hydroxybenzenesulfonic acid (Cas 98-67-9), its physical properties are as follows:
This substance is mostly white to off-white crystalline powder at room temperature. Looking at its properties, it is fine and uniform in texture. Its melting point is quite critical, about 300 ° C. At this temperature, the substance will gradually change from a solid state.
When it comes to solubility, it shows good solubility in water, easily soluble in water, just like a fish getting water. Water molecules interact with the substance molecules and disperse uniformly to form a uniform and stable solution. However, in organic solvents, its solubility is different. In common organic solvents such as ethanol, the solubility is relatively limited, and it is difficult to achieve the degree of solubility in water.
The density of 4-hydroxybenzenesulfonic acid is also an important physical property. Its density makes the substance occupy a certain space and weight characteristics during storage and transportation, providing an important reference for practical operation.
In addition, its appearance is stable in color and shape. Under conventional environmental conditions, it is not easy to change rapidly due to external minor factors. In the fields of industrial production and experimental research, this stability lays the foundation for its application, so that the relevant operation and use process can be reasonably planned and implemented according to its inherent physical properties.
Is 4-Hydroxybenzenesulfonic Acid Cas 98-67-9 chemically stable?
4-Hydroxybenzenesulfonic acid (Cas 98-67-9), its chemical properties are quite stable under normal temperature and pressure.
This compound is acidic, and the sulfonic acid group can ionize hydrogen ions, so it can exhibit acidic properties in water, and can neutralize with alkali substances, just like acid and base, generating corresponding salts and water.
From a structural perspective, the hydroxyl group is connected to the benzene ring, and the hydroxyl group can increase the electron cloud density of the benzene ring, making the benzene ring more prone to electrophilic substitution reactions, such as halogenation and nitrification. However, the sulfonic acid group is a strong electron-absorbing group, which reduces the electron cloud density of the benzene ring, and affects the reactivity of the benzene ring to a certain extent. The two check and balance each other and jointly determine the performance of the substance in the electrophilic substitution reaction.
In terms of redox, under normal circumstances, the substance is more difficult to oxidize or reduce. Although the hydroxyl group has certain reductivity, it is not easy to be oxidized under conventional conditions. If it encounters a strong oxidant, the hydroxyl group may be oxidized to an aldehyde group, a carboxyl group, etc.
When storing, it should be placed in a cool and ventilated place, away from fire and heat sources, because although its chemical properties are relatively stable, it may cause chemical reactions such as hot topics and open flames, resulting in changes in properties.
What is the production method of 4-Hydroxybenzenesulfonic Acid Cas 98-67-9?
4-Hydroxybenzenesulfonic acid (Cas 98-67-9) has been prepared in various ways. First, using phenol as the starting material and co-heating with concentrated sulfuric acid can cause a sulfonation reaction. In this reaction, concentrated sulfuric acid is both a sulfonating agent and a dehydrating agent. Under specific temperature conditions, the hydrogen atom of the phenolic hydroxyl group is replaced by the sulfonic acid group, and then 4-hydroxybenzenesulfonic acid is generated.
When operating, careful temperature control is required. If the temperature is too low, the reaction is slow and the yield is poor; if the temperature is too high, side reactions, such as the formation of disulfonated products, are prone to occur. Generally speaking, the reaction temperature is maintained within a moderate range to ensure the efficient progress of the main reaction.
Furthermore, benzenesulfonic acid can also be used as a raw material and prepared by alkali fusion method. First, benzenesulfonic acid is co-melted with sodium hydroxide to generate sodium phenol, and then acidified to obtain 4-hydroxybenzenesulfonic acid. In this process, the alkali melting step is extremely critical, and the temperature and time must be strictly controlled, otherwise the purity and yield of the product will be affected.
In addition, 4-hydroxybenzenesulfonic acid can be obtained by diazotization, Sandmeier reaction and other series of steps. However, this path step is complicated, the cost is high, and it is rarely used in industrial production. In short, phenol sulfonation is the most commonly used method because of its easy availability of raw materials, relatively simple operation, and ability to meet certain production needs.
4-Hydroxybenzenesulfonic Acid Cas 98-67-9 in storage and transportation
For 4-hydroxybenzenesulfonic acid (Cas 98-67-9), all matters need to be treated with caution during storage and transportation.
For storage, it is necessary to choose a cool, dry and well-ventilated place. This is because if the substance is exposed to high temperature and humidity, it is afraid of qualitative change. High temperature can easily accelerate its chemical reaction, or cause decomposition, etc.; humidity may cause it to absorb moisture and affect its purity. And it needs to be kept away from fire and heat sources to prevent the risk of fire. Although the cover is not extremely flammable, it may be unexpectedly heated. It should also be stored separately from oxidizing agents and alkalis, and must not be mixed. Because 4-hydroxybenzenesulfonic acid has a certain chemical activity, it encounters with oxidants, or has a violent oxidation reaction; when mixed with alkalis, it is prone to neutralization and other reactions, resulting in its failure.
As for the transportation, the first heavy packaging is tight. The packaging materials used must be able to resist vibration, collision and friction to ensure that there is no leakage of substances during transportation. The loading and unloading process must be handled with care, and it is strictly forbidden to drop and heavy pressure. This may cause damage to the package due to severe vibration or heavy pressure, causing danger. Transportation vehicles should also be equipped with corresponding fire fighting equipment and leakage emergency treatment equipment, just in case. During transportation, you should follow the specified route to avoid densely populated areas and important places, so as to reduce the harm in the event of accidents. In this way, 4-hydroxybenzenesulfonic acid is safe during storage and transportation.