Products

1-Hydroxy-4-Naphthalenesulfonic Acid

Lingxian Chemical

Specifications

HS Code

819328

Name 1-Hydroxy-4-Naphthalenesulfonic Acid
Chemical Formula C10H8O4S
Molar Mass 224.23 g/mol
Appearance white to light brown solid
Solubility In Water soluble
Pka Value about 2.05
Melting Point 161 - 163 °C
Boiling Point decomposes
Density 1.51 g/cm³
Flash Point non - flammable solid
Packing & Storage
Packing 1 - Hydroxy - 4 - Naphthalenesulfonic Acid: Packed in 1 - kg bags for easy handling.
Storage 1 - Hydroxy - 4 - Naphthalenesulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in a tightly sealed container to prevent moisture absorption and contamination. Avoid storage near incompatible substances to prevent chemical reactions.
Shipping 1 - Hydroxy - 4 - Naphthalenesulfonic Acid is shipped in properly sealed containers, following strict regulations for chemical transport. Packaging ensures protection from moisture and damage during transit to maintain product integrity.
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1-Hydroxy-4-Naphthalenesulfonic Acid
General Information
Historical Development
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is also a product of transformation. Trace back to its source, and early researchers have been diligent in exploring the properties of materials. At the beginning of time, the properties and methods of this product are mostly unknown. However, the researchers have not yet done so, and have been exploring for many years, so that they can understand. First, the method of extraction is complex and the amount is meager. The new technology has been developed, and the new method has been developed, the quantity has increased, and the quality is also good. Its use is also increasing day by day, and it is used in dyes, dyes, and other products. What was bright in the past has become an important role in the work today. This is the work of the researcher in the past, and it is deduced from its historical evolution, so that it can be used in the world.
Product Overview
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is also a chemical compound. Its properties are special, and the external properties may be specific. This compound has a sulfonic acid group, and the two interact, resulting in its chemical activity.
In the field of work, the use is not good. Or use it in the field of dyes, which can help the color of dyes, make the color strong and firm. It can also be used in the synthesis of dyes, which is special, or the basis of the active part of the product.
The synthesis method requires fine operation. Specific anti-steps, according to the principle of chemical, control, control and other pieces, in order to get high-quality products. In addition, it is necessary to maintain safety in the process, because it involves chemical reactions, or there is a danger. Therefore, 1-Hydroxy-4-Naphthalenesulfonic Acid, however, has its indispensable position in chemical engineering.
Physical & Chemical Properties
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is an important chemical raw material. Its physical properties are very specific, often in the form of crystalline acid, white or light color, and low temperature. Melting has a certain temperature, and under specific conditions, it can be refined to obtain its melting temperature. This is essential. Its solubility also has a law, and it can be soluble in some soluble conditions, but the solubility of water depends on the degree of solubility.
And chemical properties, because it contains a sulfonic acid group, it has a certain activity. The sulfonic acid group can be esterified and other reactions, and the sulfonic acid group makes the sulfonic acid able to exhibit acidity under specific conditions, and can be neutralized and reacted to generate a phase. This property makes it useful in the field of chemical synthesis, etc., can derive many downstream products, and promote the development of chemical engineering.
Technical Specifications & Labeling
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is an important compound. Its quality requires high quality and low quality (commodity quality). For this compound, the first raw material quality is high, and high-quality raw materials such as naphthalene need to be carefully selected, and the proportion is high. The reverse parts are required to be high-quality, and the quality should be controlled according to a specific quality, so as to ensure anti-profit. The reverse quality is also well grasped, and the quality or short-term quality of the product are all reflected.
The quality of the finished product (commodity quality), such as quality, must be high, and the content is low. Its outer shape also has a quality requirement, and the crystal form needs to be uniform. In this way, high-quality 1 - Hydroxy - 4 - Naphthalenesulfonic Acid products can be obtained to meet the needs of all parties.
Preparation Method
The method of making 1-hydroxy-4-naphthalenesulfonic acid, the first raw material selection. It is appropriate to use refined naphthalene as the base, which is fundamental.
In the preparation process, first sulfonate refined naphthalene with sulfuric acid. At a suitable temperature, control the temperature, so that naphthalene and sulfuric acid blend to obtain a mixture of naphthalenesulfonic acid.
The reaction step is quite critical. After sulfonation, hydrolysis is required to adjust the reaction conditions and separate the precursor of 1-hydroxy-4-naphthalenesulfonic acid.
In the transformation mechanism, the change of sulfonic acid groups and the entry of hydroxyl groups depend on delicate regulation. With a specific method, it can be accurately converted to obtain high-purity 1-hydroxy-4-naphthalenesulfonic acid, which is the key to preparation.
Chemical Reactions & Modifications
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is an important compound. In the chemical reaction, its properties are very important.
In the past, we have not yet completed the research on the chemical reaction and modification of this compound. The initial reaction is often effective, and the rate of improvement of the product is not as satisfactory.
However, we have made unremitting research, and we have obtained many improvement methods today. The degree of integration, strength, and appropriate catalysis can all make the reaction develop in a better direction. Modified, 1 - Hydroxy - 4 - Naphthalenesulfonic Acid is more widely used in multiple domains, and the performance is also greatly improved. This is all the result of the research.
Synonyms & Product Names
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is also a chemical product. Its name is the same, and the ancient one also has the same name. Or "1 - Hydroxy - 4 - Naphthalenesulfonic Acid", which is named after its chemical creation.
In the market, the names of its products also have their own names. However, they all refer to the same thing. Its use is, and it is used in the field of chemical industry.
Or those with the name of ancient elegance, then the origin is 1 - Hydroxy - 4 - Naphthalenesulfonic Acid. When I study this transformed thing, I need to clarify its general name in order to obtain its true meaning. It is used in research and use without confusion, so as to achieve the essence of research.
Safety & Operational Standards
1-Hydroxy-4-naphthalenesulfonic acid is an important chemical substance that is widely used in many fields. However, in the process of production and use, safety and operating standards are of paramount importance, and a little carelessness may lead to serious consequences.
When preparing this product, one should strictly abide by the regulations of site safety. The factory building should be well ventilated to prevent the accumulation of harmful gases. Explosion-proof lamps and lanterns must be used for lighting, and electrical equipment should also meet explosion-proof requirements to prevent open flames and static electricity. Because 1-hydroxy-4-naphthalenesulfonic acid encounters open flames, hot topics or can cause combustion and explosion.
Operators must be professionally trained and proficient in operation skills and safety knowledge. When working, you must wear protective clothing, protective gloves and goggles to avoid direct contact between the skin and the eyes of the substance. If you accidentally come into contact, you should immediately rinse with a lot of water, and seek medical treatment immediately if it is serious.
Material storage also needs to be cautious. It should be placed in a cool, dry and ventilated place, away from fire and heat sources, and stored separately from oxidants and alkalis. Do not mix storage. When handling, it should be handled lightly and lightly to prevent damage to packaging and containers.
During the production operation, precise control of reaction conditions is extremely critical. Temperature, pressure, reaction time and other parameters must be strictly implemented in accordance with established procedures. If there is a slight deviation, or the reaction will be out of control, endangering safety.
In terms of emergency treatment, enterprises should formulate a complete plan. In the event of a leak, quickly evacuate the personnel from the contaminated area of the leak to a safe area and isolate them, strictly restricting access. Emergency personnel wear self-contained positive pressure breathing apparatus and anti-acid and alkali work clothes, and do not directly contact the leak. Small leaks, mixed with sand, dry lime or soda ash, collect in dry, clean, covered containers. Large leaks, build embankments or dig pits to contain, transfer to a tank truck or special collector with a pump, recycle or transport to a waste treatment site for disposal.
Strictly abide by safety and operating standards to ensure the safety of the production and use of 1-hydroxy-4-naphthalenesulfonic acid, and promote the stable development of the industry.
Application Area
1-Hydroxy-4-naphthalenesulfonic acid has a wide range of uses. In the dyeing and weaving industry, it can be used as a dye intermediate. Based on this, a variety of bright-colored dyes can be produced, and fabrics can be dyed with bright colors and good fastness.
In the field of leather tanning, it is also useful. It can help leather to be more flexible in texture, uniform in color, and improve leather quality.
In addition, in the pharmaceutical industry, it is also an important raw material. It can participate in the synthesis of some drugs, or assist in the preparation of pharmaceutical active ingredients.
In view of its many uses, it plays a key role in the chemical industry and makes great contributions to the development of industrial production and related industries.
Research & Development
In recent years, Yu Yu's research on 1-Hydroxy-4-Naphthalenesulfonic Acid has been quite focused. This compound has unique properties and a wide range of applications.
At the beginning, I explored its synthesis method, but it has been tried many times and encountered many obstacles. The selection of raw materials, the matching of proportions, and the control of conditions all need to be carefully considered. After repeated research, a better path is finally obtained, and the yield is gradually improved.
Then study its characteristics. Under different media and temperatures, its reactivity and stability change. Understanding this law is the foundation for application.
As for application expansion, there have been attempts in dyes, medicine and other fields. In dyes, it can increase the brilliance of color and stabilize its properties; in medicine, it is expected to become a raw material for new pharmaceuticals.
I am well aware that this research is still a long way off. In the future, we need to work with colleagues to explore, refine synthesis skills, and explore application potential. We hope to make more breakthroughs and contribute to the development of the industry.
Toxicity Research
I have been studying the nature of poisons for a long time, and recently I focused on 1-Hydroxy-4-Naphthalenesulfonic Acid. Examine its quality and explore its toxicology.
After various experiments, observe the effect of it on the substance. The white rats were tried and fed with food containing this substance. After a few days, the white rats gradually became tired and ate less. The organs were slightly abnormal.
And the grass and wood were planted in the soil containing this substance, and its growth was slow and the leaves were yellowed. From this point of view, 1-Hydroxy-4-Naphthalenesulfonic Acid is toxic, which is harmful to the growth and health of life. In the future, we should deeply investigate the root cause of its poison and find solutions to prevent its harm from flowing into the world and endangering all things.
Future Prospects
1 - Hydroxy - 4 - Naphthalenesulfonic Acid is also a thing of transformation. We will study it, and we will never see it again. Its nature is unique, and it can be used in multiple domains. Unknown, or in the process of dyeing, it can be used to expand the color, so that the color is beautiful and lasting. Or it has something to build on the way to help research special effects. And its synthesis method, if we strive for excellence, will be able to reduce the cost and increase the efficiency. We must work hard to explore its secrets, so that 1 - Hydroxy - 4 - Naphthalenesulfonic Acid can be developed in the future, for the benefit of life, and become an unparalleled achievement.
Frequently Asked Questions
What are the main uses of 1-Hydroxy-4-Naphthalenesulfonic Acid?
1-Hydroxy-4-naphthalenesulfonic acid is widely used. In the dyeing and weaving industry, it is an important intermediate for the preparation of a variety of dyes. Through this material, it can undergo a series of delicate chemical reactions to derive many bright-colored and high-performance dyes for dyeing various fabrics, such as cotton, linen, silk, wool, etc., making the fabric colorful and long-lasting.
In the field of pigment industry, 1-hydroxy-4-naphthalenesulfonic acid also plays a key role. The pigments prepared on this basis have good hiding power, light resistance and weather resistance. They are often used in the production of paints, inks and other products to give products a beautiful color and stable quality.
In the field of pharmaceutical chemistry, it can participate in some steps of drug synthesis. With its special chemical structure, it can react with other compounds to construct molecular structures with specific pharmacological activities, providing important raw material support for pharmaceutical research and development.
In addition, in the field of organic synthesis, 1-hydroxy-4-naphthalenesulfonic acid, as an important organic reagent, can be used to construct complex organic molecular structures, promote the development and progress of organic synthesis chemistry, and help researchers create more organic compounds with unique properties and uses.
What are the physical properties of 1-Hydroxy-4-Naphthalenesulfonic Acid?
1-Hydroxy-4-naphthalenesulfonic acid is one of the organic compounds. It has the following physical properties:
Looking at its morphology, it is mostly white to light yellow crystalline powder under normal conditions. This color state is easy to identify, and in various chemical scenarios, it can be initially judged according to its color state.
When it comes to solubility, it is soluble in water. For water, common solvents are also, 1-hydroxy-4-naphthalenesulfonic acid can be soluble in water, which makes it uniformly dispersed and effective in many reactions or applications of aqueous systems. For example, in the preparation of some dyes, the reaction can be more complete and uniform with the help of its water solubility.
Then again, the melting point is about a specific temperature range. Melting point is an inherent property of a substance, and accurate determination of its melting point can be one of the methods to distinguish its purity. If the measured melting point matches the standard value, its purity is higher; if there is a deviation, it may contain impurities.
Looking at its odor, it usually has no special strong odor. This point is very important in practical applications. It has no pungent or special odor, which can make the working environment more pleasant, reduce the irritation to the operator's sense of smell and respiratory tract, and protect the health of the worker.
In addition, the density of 1-hydroxy-4-naphthalene sulfonic acid also has a certain value. Density is related to its distribution and behavior in different media. In the process of chemical production, such as material ratio and mixing, density consideration is indispensable to ensure that each component is accurately mixed to achieve the desired reaction or product performance.
In summary, the physical properties of 1-hydroxy-4-naphthalenesulfonic acid, such as morphology, solubility, melting point, odor and density, are of great significance in the application and research of chemical industry, dyes and other fields. Practitioners need to know in detail in order to make good use of this material.
What are the chemical properties of 1-Hydroxy-4-Naphthalenesulfonic Acid?
1-Hydroxy-4-naphthalenesulfonic acid, this is an organic compound. It has many unique chemical properties.
Looking at its acidity, 1-hydroxy-4-naphthalenesulfonic acid contains a sulfonic acid group (- SO 🥰 H), which is a strongly acidic group. It is easy to ionize hydrogen ions in water, so it is acidic and can neutralize with bases to form corresponding salts and water. For example, when reacted with sodium hydroxide, the hydrogen of the sulfonic acid group combines with hydroxide to form water, and the sulfonic acid group forms a salt with sodium ions.
In terms of its solubility, the presence of sulfonic acid groups makes it soluble in water. Because the sulfonic acid group is a hydrophilic group, it can form hydrogen bonds with water molecules to help it disperse in water. However, the naphthalene ring is a hydrophobic group, which limits its solubility to a certain extent. Overall, the solubility in hot water is higher than that in cold water.
1-hydroxy-4-naphthalene sulfonic acid The hydroxyl group (-OH) also has specific reactivity. Hydroxyl groups can participate in the esterification reaction, and react with alcohols to form esters under acid catalysis. In this reaction, the hydrogen of the hydroxyl group is removed from the hydroxyl group of the alcohol to form water molecules, and the remaining part is combined into esters.
In addition, the structure of the naphthalene ring endows it with a certain conjugate system, resulting in certain stability and special optical properties. The conjugated system can absorb light of specific wavelengths, showing absorption peaks in the ultraviolet-visible region, which can be used for qualitative and quantitative analysis.
1-Hydroxy-4-naphthalenesulfonic acid has rich and diverse chemical properties and has important applications in organic synthesis, dyes, medicine and other fields. With its acidity, solubility, and reactivity of hydroxyl groups and naphthalenes, it can participate in many chemical reactions and provide key chemical raw materials and intermediates for the development of various fields.
What is the production method of 1-Hydroxy-4-Naphthalenesulfonic Acid?
The preparation method of 1-hydroxy-4-naphthalenesulfonic acid, although the ancient book "Tiangong Kaiwu" does not explicitly state this specific thing, it can be found to be similar to it in terms of chemical theory.
In the past, the preparation of this acid often began with naphthalene. First, the naphthalene is sulfonated, and the naphthalene is co-placed with sulfuric acid. At an appropriate temperature, the hydrogen on the naphthalene ring is replaced by the sulfonic acid group to obtain naphthalenesulfonic acid products. Among them, the concentration of sulfuric acid, the temperature and time of the reaction are all key. Sulfuric acid is concentrated, and it is easy to sulfonate; high temperature, reaction speed, but if it is too high, there will be more by-products. Therefore, fine regulation is required to make the reaction at an appropriate rate to
After obtaining naphthalenesulfonic acid, to make 1-hydroxy-4-naphthalenesulfonic acid, the sulfonic acid group needs to be converted into a hydroxyl group. Naphthalenesulfonic acid is often co-melted with a base (such as sodium hydroxide) by alkali fusion. At high temperature, the sulfonic acid group reacts with the base, the sulfur of the sulfonic acid group binds with sodium, and the hydroxyl group replaces the sulfonic acid group to obtain the sodium salt of 1-hydroxy-4-naphthalenesulfonic acid. After acidification, it is neutralized with a strong acid (such as hydrochloric acid) to convert the sodium salt into 1-hydroxy-4-naphthalenesulfonic acid. In this process, the temperature of alkali fusion, the amount of alkali, and the degree of acidi
Or there are other methods, such as using naphthol derivatives as raw materials and sulfonating reactions, which can also be obtained. However, no matter what method, you need to be careful with the operation and be proficient in regulating the various conditions of the reaction in order to obtain high-quality 1-hydroxy-4-naphthalenesulfonic acid.
1-Hydroxy-4-Naphthalenesulfonic precautions in the use of Acid
When using 1-hydroxy-4-naphthalenesulfonic acid, pay careful attention to all matters.
First, this product is corrosive and will cause harm if it touches the skin and eyes. When handling, be sure to take full protection, wear protective clothing, protective gloves on your hands, and protective goggles for your eyes, so as to keep it safe. If it is accidentally contaminated, rinse it with plenty of water immediately, and seek medical attention as soon as possible.
Second, it is chemically sensitive to heat and light. When storing, choose a cool, dry and dark place, away from fire and heat sources, so as not to change its properties and affect use. If heated, there may be a risk of decomposition, releasing harmful gases, endangering the surrounding environment and personal safety.
Third, during use, strictly follow the established procedures. Precisely control the dosage and reaction conditions, such as temperature, time, pH, etc. A slight poor pool, or the reaction is not as expected, affecting the quality of the product, or causing accidents.
Fourth, 1-hydroxy-4-naphthalene sulfonic acid may have an impact on the environment. After use, the waste should be properly disposed of, and environmental protection regulations should be followed. It must not be dumped at will, so as not to pollute the soil, water sources, and destroy the ecological balance.
In short, the use of 1-hydroxy-4-naphthalenesulfonic acid should be done with caution, strict adherence to norms, and comprehensive protection, so that it can be administered safely and effectively to avoid disasters.