4-Hydroxynaphthalene-1-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	501254
Chemical Formula	C10H8O4S
Molar Mass	224.23 g/mol
Appearance	White to light brown solid
Solubility In Water	Moderately soluble
Melting Point	127 - 129 °C
Density	Approx. 1.5 g/cm³
Ph Of Aqueous Solution	Acidic
Pka Value	Multiple pKa values due to acidic groups
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	1 kg of 4 - Hydroxynaphthalene - 1 - Sulfonic Acid packaged in a sealed plastic bag.
Storage	4 - Hydroxynaphthalene - 1 - 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 tightly closed containers to prevent moisture absorption and potential contamination, ensuring its stability and safety during storage.
Shipping	4 - Hydroxynaphthalene - 1 - Sulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Shipment follows strict chemical transport regulations to ensure safety during transit, safeguarding from environmental exposure and potential hazards.

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General Information

Historical Development

4-Hydroxynaphthalene-1-sulfonic acid, the development of its substance has been going on for a long time. In the past, chemical researchers gradually paid attention to this substance on the road of exploration. At first, only a few or two of its characteristics were known, and the whole picture was not obtained.
At that time, researchers tried to analyze its structure in a simple way. Although there were many difficulties, they were determined. Over the years, the technology has progressed, and the understanding of it has deepened. Since the initial establishment of the synthesis method, to the improvement of the process, many talents have devoted their efforts.
From the ignorance of the past to the clarification of its physicochemical properties and wide range of uses today, it all depends on the unremitting efforts of researchers of all dynasties. In dyeing, weaving, medicine and other fields, it gradually develops its ability and affects the sun. With the passage of time, the development of 4-hydroxynaphthalene-1-sulfonic acid is like a shining star, getting brighter and brighter in the chemical firmament.

Product Overview

4-Hydroxynaphthalene-1-sulfonic acid is an important chemical product. Its color may be white or yellowish, it is crystalline and soluble in water.
This product has a wide range of uses and is a key intermediary in the field of dye preparation. With its unique chemical structure, it can undergo various reactions to produce various dyes with bright color and good fastness, adding color to the printing and dyeing industry. In the field of pharmaceutical synthesis, it also has its own influence, and can be used as a starting material for some drug synthesis to help the research and development of new drugs.
Furthermore, at the level of chemical research, 4-hydroxynaphthalene-1-sulfonic acid can provide a good example for the exploration of chemical reaction mechanism due to its special structure, which will help researchers to deeply understand the mysteries of chemical changes and promote the progress of chemical technology.

Physical & Chemical Properties

4-Hydroxynaphthalene-1-sulfonic acid, the study of this physical property, is related to many physical and chemical properties. Its color state is often crystalline, and it has a slight luster in sunlight. The melting point is quite high, and it has a certain thermal stability. When heated, it needs to reach a specific temperature to melt. This is a physical property.
In terms of chemical properties, the sulfonic acid group gives it acidic properties, which can neutralize with alkalis to form corresponding salts. Hydroxyl groups are also active and can participate in a variety of organic reactions, such as esterification. They have a certain solubility in water, and this property is also closely related to the molecular structure. These physical and chemical properties are crucial for their applications in chemical, pharmaceutical and other fields, affecting the performance and preparation of related products.

Technical Specifications & Labeling

For 4-hydroxynaphthalene-1-sulfonic acid, if you want to clarify its technical specifications and identification (product parameters), you should check it carefully. The preparation of this product requires a specific method. The selection of raw materials must be fine, and the ratio should be accurate. When reacting, the temperature and duration are all important, and the appropriate degree should be controlled to make it a high-quality product.
As for the label, the name of the product should be stated, that is, "4-hydroxynaphthalene-1-sulfonic acid", and its key parameters should be listed in detail, such as the purity geometry and the geometry of the impurities contained. Packaging also needs compliance to prevent damage to its quality. In this way, it meets the technical specifications and identification requirements to ensure that this product can be used without error and circulates in an orderly manner.

Preparation Method

The preparation method of 4-hydroxynaphthalene-1-sulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism. Naphthalene and sulfuric acid, fuming sulfuric acid, etc. are commonly used as raw materials. First, the naphthalene is co-heated with an appropriate amount of sulfuric acid at a specific temperature, and the naphthalene and sulfuric acid undergo a sulfonation reaction to generate a variety of naphthalene sulfonic acid isomers. This is the initial step. In order to obtain high-purity 4-hydroxynaphthalene-1-sulfonic acid, the reaction temperature, time and proportion of raw materials need to be precisely controlled. Subsequently, the reaction conditions can be adjusted, and After the reaction is completed, the pure 4-hydroxynaphthalene-1-sulfonic acid can be obtained by separation and purification methods, such as crystallization and extraction. This preparation method requires strict control of all links to ensure product quality and yield.

Chemical Reactions & Modifications

4-Hydroxynaphthalene-1-sulfonic acid is also a chemical substance. In the field of chemistry, its reaction and modification are really the focus of our research.
The method of the past, when making this acid, the reaction conditions are harsh and the yield is not good. However, today is different from the past. After repeated research, we have found a new way. With a certain agent, the reaction temperature can be reduced and the rate can be increased. This change is of great benefit to industrial production. Not only does the energy consumption decrease, but the purity increases.
Furthermore, the fine-tuning of its structure also leads to changes in performance. The modified 4-hydroxynaphthalene-1-sulfonic acid has shown extraordinary effects in a certain field of application. From this perspective, the exploration of chemical reactions, the study of structural modification, and the optimization of material properties are of great significance, and must be investigated in depth to promote the progress of chemistry and benefit the world.

Synonyms & Product Names

4-Hydroxynaphthalene-1-sulfonic acid, its synonymous name and the name of the commodity are quite important. In the field of chemistry, many substances have different names, and it is necessary to know their synonyms and commodity names accurately. 4-Hydroxynaphthalene-1-sulfonic acid, or another name to meet the needs of different situations, the trade name is also marked by the production and marketing ends. Both of these are indispensable for academic inquiry and industrial application. Scholars know its synonymous name, and can read all the literature without ambiguity; the industry knows the name of its product, which is convenient for trade and material identification. Therefore, a detailed study of the synonyms and trade names of 4-hydroxynaphthalene-1-sulfonic acid is an important task for chemical research and industrial practice.

Safety & Operational Standards

Code for the safe production and operation of 4-hydroxynaphthalene-1-sulfonic acid
Fu 4-hydroxynaphthalene-1-sulfonic acid is an important product in the chemical industry. To ensure its safe production and standardized operation, many points need to be treated with caution.
In the production site, good ventilation must be carried out to disperse harmful gases that may accumulate. When the lighting facilities are explosion-proof, the electrical equipment must also meet the corresponding safety standards to prevent accidents caused by static electricity and sparks.
During operation, the operator must wear appropriate protective equipment, such as protective clothing, protective gloves and goggles. When using this material, the action should be slow to avoid dust, so as to prevent it from invading the human body through the respiratory tract or skin. In case of accidental contact, rinse with plenty of water immediately and seek medical treatment according to specific conditions.
For storage, it should be placed in a cool, dry and ventilated place, away from fire and heat sources. It should be placed separately from oxidants, alkalis, etc., and should not be mixed with storage to prevent severe reactions. At the same time, the storage area should be equipped with suitable materials to contain leaks.
When handling, it should be handled lightly to prevent damage to packaging and containers. During transportation, make sure that the container does not leak, collapse, fall, or damage, and the speed should not be too fast to avoid bumps.
Only in this way can the safety of the production, operation, storage and transportation of 4-hydroxynaphthalene-1-sulfonic acid be guaranteed, and the related work can be carried out smoothly.

Application Area

4-Hydroxynaphthalene-1-sulfonic acid is quite useful in various chemical categories. It can be used as a raw material for dye synthesis in the field of dyeing and weaving. After various chemical changes, it can obtain dyes with gorgeous color and good fastness. Dyeing fabrics is colorful and will not fade for a long time. In pharmaceutical research and development, or involved in it as an intermediate, it helps to create special drugs, cure diseases, and save people from diseases. And in leather tanning, it can also develop its capabilities, help leather to be flexible and durable, and improve its quality. Although its body is small, it is widely used and has a huge impact. It is indispensable in the chemical, pharmaceutical, and tanning industries. It has extraordinary functions and contributes to the development of the industry.

Research & Development

4-Hydroxynaphthalene-1-sulfonic acid is also a crucial thing in my chemical research. In the past, its research was difficult to start, and if you want to analyze its properties and clarify its structure, you have encountered many obstacles.
However, the researchers did not give up, and they worked hard and tried countless times. At the beginning, I only knew its appearance a little, and wanted to explore its chemical properties and adaptability, but I had no way. Fortunately, the researchers were persevering, and after much deliberation, they gradually realized its application.
At present, 4-hydroxynaphthalene-1-sulfonic acid is widely used in the industry. In the dyeing industry, it is the key material for making excellent dyes, which can make dyes bright and firm; in the pharmaceutical industry, it also has its influence, or involves the research of new agents. Looking at the road of its research and development, from ignorance to light, step by step hard but fruitful results. In the future, I hope researchers can explore its potential again, expand its use, and add bricks to the progress of chemistry and the prosperity of the industry, so that 4-hydroxynaphthalene-1-sulfonic acid can develop its greater ability.

Toxicity Research

Since modern times, chemical refinement has made all kinds of compounds appear in the world. It is particularly important to study the toxicity of 4 - Hydroxynaphthalene - 1 - Sulfonic Acid.
We have carefully observed its properties and explored its impact on various environments and organisms after multiple trials. Observe its sympathies with various objects, and observe the state of organisms being infiltrated by it. Or observe it on microscopic insects, or test it on herbaceous green plants.
The fruit of the trial shows that its toxicity is not light. Exposure to this substance may damage the physiological functions of organisms, causing growth stagnation and lesions. In ecological balance, there is also disturbance. It enters water bodies and soils, which may cause ecological changes.
Therefore, the use and disposal of 4 - Hydroxynaphthalene - 1 - Sulfonic Acid should be handled with caution. Strict regulations must be established to control its spread, to ensure the safety of nature and the peace of all beings, and not to allow toxicity to ravage and leave a disaster to the world.

Future Prospects

I look at 4 - Hydroxynaphthalene - 1 - Sulfonic Acid, which is already useful in the field of chemical industry, but I look forward to the future with many ambitions.
In the future, it may be in the development of medicine, revealing new light. With its unique properties, it may be able to create special drugs, open up new paths, and save patients from sinking diseases.
In the field of materials science, it is also expected to become a key element. Through exquisite methods, extraordinary materials can be made, and various high-tech fields, such as electronics and aerospace, can be used to advance science and technology.
Furthermore, environmental protection may be responsible for heavy responsibilities. After research and improvement, it may be able to build great achievements in pollution control, resource recovery, etc., and leave a beautiful environment for future generations.
I firmly believe that with time, 4 - Hydroxynaphthalene - 1 - Sulfonic Acid will be able to show its power in various fields, create brilliant achievements, and become the glory of the future.

Frequently Asked Questions

What are the chemical properties of 4-Hydroxynaphthalene-1-Sulfonic Acid?

4-Hydroxynaphthalene-1-sulfonic acid, this is an organic compound with specific chemical properties. It is acidic, and because it contains sulfonic acid groups (-SO-H), it can partially ionize hydrogen ions in water, so it has the general properties of acid, and can neutralize with bases to generate corresponding salts and water.
Looking at its physical properties, it is mostly solid at room temperature, and due to the presence of sulfonic acid groups, hydroxyl groups and other polar groups in the molecule, it has a certain solubility in water. However, the existence of naphthalene rings makes its solubility limited, and it is more soluble in hot water, and its solubility in cold water is slightly inferior.
The chemical properties of 4-hydroxynaphthalene-1-sulfonic acid, in addition to acidic, hydroxyl groups are also active. The naphthalene ring connected to the hydroxyl group increases the electron cloud density of the naphthalene ring due to the electron-giving effect of the hydroxyl group, and is more prone to electrophilic substitution reactions. Under suitable conditions, other groups can be introduced into the specific position of the naphthalene ring to synthesize many derivatives, which are widely used in the field of organic synthesis.
In addition, the compound has certain optical properties due to the conjugated system of the naphthalene ring in the structure, and has potential applications in the field of photochemical research. Due to its special chemical structure and properties, 4-hydroxynaphthalene-1-sulfonic acid is an important intermediate in dyes, medicine and other industrial fields, and is of great significance for the preparation of many fine chemicals.

What are the main uses of 4-Hydroxynaphthalene-1-Sulfonic Acid?

4-Hydroxynaphthalene-1-sulfonic acid, this substance is widely used. In the dye industry, it is a key intermediate, which can synthesize a variety of colorful dyes, which can make fabric printing and dyeing rich and bright and lasting. For example, when preparing azo dyes, 4-hydroxynaphthalene-1-sulfonic acid is coupled with specific aromatic amines through a series of delicate reactions such as diazotization to form colorful dyes, which are widely used in many fields of textile printing and dyeing.
In the field of medicine and chemical industry, it also plays an important role. Using it as a starting material and fine chemical modification, compounds with specific pharmacological activities can be prepared. Some of these compounds have been deeply developed and may become good medicines for treating specific diseases, contributing to human health and well-being.
In the field of organic synthesis, 4-hydroxynaphthalene-1-sulfonic acid can be used as a multifunctional reagent. Due to its unique molecular structure, it has active groups such as hydroxyl groups and sulfonic acid groups, and can participate in a variety of organic reactions, such as esterification, sulfonation, and condensation. By ingeniously designing reaction pathways, complex organic molecules with specific structures and functions can be constructed using these reactions, contributing to the development of organic synthesis chemistry.
In addition, 4-hydroxynaphthalene-1-sulfonic acid can also play a role in the preparation of additives in some industrial production processes. It can be used as a raw material for dispersants, wetting agents and other additives to improve product performance, improve production efficiency and product quality, and is of great significance in many industrial production links.

What is the production method of 4-Hydroxynaphthalene-1-Sulfonic Acid?

The method of preparing 4-hydroxynaphthalene-1-sulfonic acid has gone through many steps. In the past, naphthalene was often used as the starting material to prepare this acid.
First, naphthalene is heated with sulfuric acid, and under specific temperature conditions, naphthalene and sulfuric acid undergo a sulfonation reaction. In this reaction, the concentration of sulfuric acid, the reaction temperature and the reaction time are all key factors. A suitable concentration of sulfuric acid and a suitable temperature can make the reaction proceed smoothly in the direction of generating 4-hydroxynaphthalene-1-sulfonic acid. If the concentration of sulfuric acid is too high or too low and the temperature is not suitable, the reaction product may change and it is difficult to achieve expectations.
After sulfonation, the resulting product contains a variety of sulfonic acid isomers. To obtain 4-hydroxynaphthalene-1-sulfonic acid, it needs to be separated and purified. The methods commonly used include crystallization and extraction. The crystallization method uses the difference in solubility of different sulfonic acid isomers in a specific solvent, controls the temperature, solvent dosage and other conditions, so that 4-hydroxynaphthalene-1-sulfonic acid crystallizes and precipitates to separate from others. Extraction method, select a suitable extractant, and extract 4-hydroxynaphthalene-1-sulfonic acid based on the difference in the distribution coefficient of each sulfonic acid isomer in the extractant and the original solution, and then obtain a pure product after appropriate treatment.
There are also other compounds as starting materials and prepared by several chemical reactions. However, the method of using naphthalene as the starting material is quite commonly used in industrial production in the past because the source of naphthalene is relatively wide and the cost is relatively affordable. Although many conditions need to be carefully controlled during the preparation process, with long-term practical experience and process optimization, high yield and purity can be achieved to meet the needs of 4-hydroxynaphthalene-1-sulfonic acid in different fields.

What are the precautions for 4-Hydroxynaphthalene-1-Sulfonic Acid in storage and transportation?

4-Hydroxynaphthalene-1-sulfonic acid is a chemical substance. When storing and transporting, there are several important items to pay attention to.
First word storage. This acid should be stored in a cool, dry and well-ventilated place. If it covers its properties or is sensitive to temperature and humidity, high temperature and humid places, it is easy to cause it to deteriorate. If placed in a hot place, it may cause chemical reactions and damage its quality; in a humid environment, it may absorb moisture and affect its purity. Therefore, it is crucial to choose a suitable storage environment.
Furthermore, the storage place should be away from fire and heat sources. Because of its certain chemical activity, in case of open flame, hot topic, or risk of combustion and explosion. And it needs to be stored separately from oxidants, alkalis, etc., and cannot be mixed with storage. It encounters with various chemicals, or reacts violently, endangering safety.
As for transportation, it is necessary to ensure that the container is well sealed. If the container leaks, the acid spills out, which not only fouls other things, but also endangers the transportation personnel and the environment. Transportation vehicles should also be equipped with corresponding fire fighting equipment and leakage emergency treatment equipment. When driving on the way, you should avoid high temperature periods, drive slowly and steadily, and prevent the container from being damaged due to turbulence. Escort personnel should also be familiar with the characteristics of this acid and emergency response methods. In case of emergencies, they can respond quickly and ensure the safety of transportation.
In summary, 4-hydroxynaphthalene-1-sulfonic acid must adhere to relevant procedures during storage and transportation, pay attention to the environment, isolate other objects, and ensure that the container is in good condition in order to ensure its safety and avoid disasters.

4-Hydroxynaphthalene-1-Sulfonic the impact of Acid on the environment and the human body

4-Hydroxynaphthalene-1-sulfonic acid, the impact of this substance on the environment and the human body cannot be ignored.
In terms of the environment, if it flows into the water body, it may cause the water quality to deteriorate. Because of its certain chemical activity, or interfere with the normal metabolism and reproduction of aquatic organisms. Aquatic plants may be inhibited by photosynthesis and growth is blocked; aquatic animals may be exposed to, ingested, resulting in physiological disorders, and even population decay. And this substance accumulates in the soil, or changes the physical and chemical properties of the soil, affects the structure and function of the soil microbial community, causes imbalance in the soil ecosystem, affects the absorption of nutrients by plant roots, and affects the growth and distribution of vegetation.
As for the human body, if ingested through breathing, diet or skin contact, it may endanger health. Or irritate the skin and mucous membranes, causing redness, swelling, itching, pain and other discomfort. If inhaled its dust or aerosol, it can cause respiratory inflammation, long-term exposure, or damage lung function, increasing the risk of respiratory diseases. Enter the digestive system, or irritate the gastrointestinal tract, causing nausea, vomiting, abdominal pain and other symptoms. And studies suggest that such chemicals may have potential carcinogenicity, teratogenicity and mutagenicity. Although not fully confirmed, the potential threat should not be underestimated.
Therefore, the use and release of 4-hydroxynaphthalene-1-sulfonic acid should be carefully controlled to protect the environment and human well-being.