1-Naphthol-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	104190
Chemical Formula	C10H8O4S
Molar Mass	224.23 g/mol
Appearance	Light yellow to brown powder
Solubility In Water	Soluble in hot water
Solubility In Organic Solvents	Insoluble in most organic solvents
Acidic Properties	Weakly acidic
Melting Point	280 - 284 °C
Boiling Point	Decomposes before boiling
Stability	Stable under normal conditions
Hazard Class	Irritant

Packing & Storage

Packing	1 - Naphthol - 4 - Sulfonic Acid: Packed in 25 - kg bags for secure storage and transport.
Storage	1 - Naphthol - 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 oxidizers. Store in tightly sealed containers to prevent moisture absorption and potential degradation. Ensure proper labeling for easy identification and handling.
Shipping	1 - Naphthol - 4 - Sulfonic Acid should be shipped in tightly - sealed containers, protected from moisture and heat. Ensure compliance with chemical transportation regulations, with proper labeling indicating its hazardous nature if applicable.

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General Information

Historical Development

1 - Naphthol - 4 - Sulfonic Acid is also a product of chemistry. Its historical evolution can be quite studied. In the past, chemists worked tirelessly on the road to explore the mysteries of matter. After many hard experiments, this product was finally obtained.
At the beginning, the knowledge of this object was still shallow, and only some of its characteristics were known. However, with the passage of time, researchers have devoted their efforts to analyzing its structure and exploring its properties with exquisite methods.
In the synthesis of technology, it has gradually become more refined from crude at the beginning. In the past, synthesis often encountered problems and the yield was quite low. After repeated improvements, a new process was born, the yield was improved, and the quality was better.
In the field of application, its initial use was limited, but later it was found to have extraordinary potential in dyes, medicine and other industries. Therefore, it became the focus of industrial production and left a strong impression in the long river of chemical development.

Product Overview

1-Naphthol-4-sulfonic acid, also an organic compound. Its color may be white to yellow, and its shape is like a crystalline powder.
This product has the structure of sulfonic acid group and naphthol, and has a wide range of uses in the field of organic synthesis. It can be used as a dye intermediate. Through a series of chemical reactions, it can help to form colorful dyes. It can dye fabrics with bright color and good fastness. It is also useful in the synthesis of medicine, or it is a key raw material for the preparation of special drugs.
However, the preparation of this product requires strict operation. The control of reaction conditions, such as temperature, pH, etc., is crucial. A slight poor pool, or the product is impure, or the yield is affected. And this product has a certain chemical activity. When storing, it should be placed in a dry and cool place to avoid mixing with oxidants, alkaline substances, etc., to prevent deterioration and risk.

Physical & Chemical Properties

1 - Naphthol - 4 - Sulfonic Acid is an important chemical substance. Its physical properties are often crystalline in appearance, white or yellowish in color, and stable at room temperature and pressure. In terms of solubility, it is slightly soluble in cold water, slightly more soluble in hot water, and soluble in some organic solvents.
On its chemical properties, this substance contains phenolic hydroxyl groups and sulfonic acid groups. The phenolic hydroxyl groups have certain acidity and can react with bases to form corresponding salts. Sulfonic acid groups give molecules good water solubility and ionization properties. Due to the presence of conjugated systems in its structure, it exhibits unique activity in chemical reactions, can participate in many electrophilic substitution reactions, and is widely used in the field of organic synthesis. It is a key raw material for the preparation of various functional compounds and plays an important role in dyes, medicine and other industries.

Technical Specifications & Labeling

1 - Naphthol - 4 - Sulfonic Acid is also a chemical product. The technology of its creation is very important.
The technology is very good. Seek its essence. The degree of compatibility of its ingredients must be small. For example, the quality of the parts of the reaction, the degree of resistance and strength, all need to be controlled. Make the reaction complete, and the quantity of the product is guaranteed.
Even the quality of the product should not be ignored. The product is such as shape, color, and quality, etc., so that the user can see at a glance, know its nature and purpose, and will not be used. In this way, the product of 1 - Naphthol - 4 - Sulfonic Acid can be guaranteed to be of high quality, and it can be used properly in the chemical industry.

Preparation Method

The preparation of 1-naphthol-4-sulfonic acid is related to raw materials and production processes, reaction steps and catalytic mechanisms. The raw materials are often 1-naphthol and concentrated sulfuric acid, and the two are mixed according to a specific ratio.
In the reaction step, first put 1-naphthol into the reactor, slowly inject concentrated sulfuric acid, and control the temperature to a suitable range, usually about 150 ° C - 160 ° C. This is the sulfonation reaction stage. During this period, pay close attention to the reaction process, and fine-tune the temperature and reaction time according to the reaction conditions.
As for the catalytic mechanism, concentrated sulfuric acid plays both the role of reactant and catalyst, promoting the smooth introduction of sulfo groups into 1-naphthol In order to ensure the purity of the product, subsequent processes such as neutralization, separation and purification are required. In this way, high-purity 1-naphthol-4-sulfonic acid products can be obtained.

Chemical Reactions & Modifications

1 - Naphthol - 4 - Sulfonic Acid is commonly used in chemical industry. Its chemical reaction is very critical, which is related to the quality and yield of the product. In the past, the preparation of this product, the reaction conditions were harsh, the yield was not ideal, and the product purity was not good.
At present, through unremitting research, its chemical reaction has been improved. The new reaction conditions make the reaction milder, no longer requiring extremely high temperature and high pressure, which not only reduces energy consumption, but also increases safety. The optimization of the catalyst greatly improves the reaction rate and the yield is also significantly improved. At the same time, with advanced purification technology, the purity of the product can be guaranteed.
Such changes have made the production of 1 - Naphthol - 4 - Sulfonic Acid more efficient and environmentally friendly, and supplied better raw materials for various fields of chemical industry, which is of great significance to the industrial process.

Synonyms & Product Names

1 - Naphthol - 4 - Sulfonic Acid, the synonym and trade name of this product, is of great research value. Its synonyms are different names for the same substance in the academic or industry, all referring to the specific chemical structure of the product. The trade name is the name given by the merchant in the marketing activity, in recognition of its product characteristics or advantages.
Chemical classics, 1 - Naphthol - 4 - Sulfonic Acid, also known as naphthol - 4 - sulfonic acid, this is the name given directly from its chemical structure and composition. Merchants name it, or highlight its purity, or emphasize its use, such as "excellent pure naphthol sulfonic acid", to distinguish it from other products and attract buyers.
Exploring synonyms and trade names helps to clarify the essence of matter in the academic world, so as not to be confused by complicated appellations; in the industry, it can help merchants to accurately locate and improve product recognition. Therefore, the sorting of 1-Naphthol-4-Sulfonic Acid synonyms and trade names is an indispensable part of chemical research and commercial application.

Safety & Operational Standards

1 - Naphthol - 4 - Sulfonic Acid is an important chemical compound. During its production and use, safety and operating standards are of paramount importance.
The first word is safe, this compound has certain chemical activity, or potential hazards to human body and the environment. The production site should be well ventilated to prevent the accumulation of harmful gases. Staff must wear professional protective equipment, such as protective clothing, gloves and goggles, to avoid direct contact with the substance. Storage should also be cautious. It should be placed in a dry, cool and ventilated place, away from fire sources and oxidants to prevent fire or chemical reactions.
In terms of operating specifications, the production process must strictly follow the established standards. From the preparation of raw materials to the control of reaction conditions, do not be sloppy. Parameters such as reaction temperature, pressure and time must be precisely regulated to ensure product quality and production safety. During transportation, it should be properly packaged to prevent leakage. During use, operators should be professionally trained to be familiar with its chemical properties and emergency treatment methods. In the event of a leak, emergency measures should be taken immediately, evacuate personnel, seal off the site, and properly handle the leak according to relevant procedures.
In this way, strict compliance with safety and operating standards can ensure the safety of the production and use of 1-Naphthol-4-Sulfonic Acid, and promote the stable development of the industry.

Application Area

1 - Naphthol - 4 - Sulfonic Acid is also a chemical substance. It can be used as a raw material for dyes in the field of dyeing. The dye obtained from this substance has a good color and fastness, and can make the substance do not fade for a long time. It also has its own power in the way of transportation. Or it can be synthesized into some materials to help the disease. And in the field of chemical analysis, it can be used as a chemical agent, which can be used for manufacturing and general materials. Because of its unique properties, it can provide an important basis for analysis. In short, 1 - Naphthol - 4 - Sulfonic Acid has an indispensable position in the field of multi-purpose.

Research & Development

In recent years, I have been in the field of chemistry, focusing on the research of 1 - Naphthol - 4 - Sulfonic Acid. Its unique nature and wide application are related to printing and dyeing, medicine and other industries.
At the beginning, the preparation method was cumbersome, and the yield was not ideal. I tried my best to consult the ancient classics, and also referred to the new theory of Xiyi, thinking of improvement strategies day and night. After months of experiments, fine-tuning the temperature and pressure of the reaction, changing the ratio of reagents, and finally optimizing the method, the yield was significantly improved.
Not only this, I investigated its reaction mechanism, analyzed the structure and characteristics of the molecule in detail, and hoped to expand its application. Looking forward to the future, this research achievement can benefit more fields, promote the prosperity of the industry, seek the well-being of the world, and contribute to the research and progress of chemistry.

Toxicity Research

1 - Naphthol - 4 - Sulfonic Acid Toxicity Study
I have heard that all kinds of substances have their own characteristics, and chemical products are no exception. 1 - Naphthol - 4 - Sulfonic Acid This substance is used in chemical industries from time to time. However, the study of its toxicity cannot be ignored.
Examine this substance in detail today, it may have a certain toxicity. If you accidentally touch it, it may be on the skin, mucous membranes, or cause irritation. It enters the mouth and nose, follows the path of breathing and digestion, and may hurt the viscera. From an experimental perspective, when the tested creature encounters this substance, it is physiological or abnormal.
For the sake of everyone's health, all those involved in the business of this thing must take strict precautions. Those who handle it should use protective equipment to avoid direct contact with it. The workplace also needs to be well ventilated to prevent its gas from accumulating. This is all an act of protecting one's life and cannot be ignored. I hope you will pay more attention to toxicity research to protect the well-being of all beings.

Future Prospects

Guanfu 1 - Naphthol - 4 - Sulfonic Acid This material is the best research of today's chemistry. Its unique nature is quite promising in the field of chemical industry.
In today's world, science and technology are changing day by day, research this substance, hoping to expand its use. Or in the industry of dyeing and weaving, make the color more colorful and solid; or in the road of medicine, seek new opportunities for healing and saving people.
The future development should be based on intensive research and explore its micro-mystery. With time, new territories will be opened up. Make this substance shine in all fields, be used by the world, and benefit all living things. This is the hope of our chemical researchers, and we look forward to seeing its glorious scene in the unfinished time.

Frequently Asked Questions

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

1-Naphthol-4-sulfonic acid, this is an organic compound. It has a wide range of uses and plays an important role in many fields.
In the dye industry, this is a key intermediate. Through a series of chemical reactions, it can be converted into a wide variety of dyes. Due to its structural characteristics, it can endow dyes with unique colors and good dyeing properties. With the dyes made from 1-naphthol-4-sulfonic acid, the color is bright and the fastness is quite good. Whether it is used for fabric dyeing or other materials, it can show satisfactory results, so it is very popular in the textile printing and dyeing industry.
In the field of medicine, it also has certain uses. Its chemical structure can be used as the basic framework for the synthesis of some drugs. By appropriate chemical modification and modification, drugs with specific pharmacological activities can be developed to play a role in human health.
In chemical research, 1-naphthol-4-sulfonic acid, as a typical organic compound, is often used in the research and exploration of various organic synthesis reactions. Scientists can expand the knowledge boundary of organic chemistry by in-depth study of its reaction characteristics, explore new synthesis methods and paths, and promote the continuous development of chemistry.
In addition, in some fields of analytical chemistry, it may also be used as an analytical reagent. Because of its special chemical properties, it can react with specific substances to produce products with obvious characteristics, so as to achieve qualitative or quantitative analysis of certain substances. In short, 1-naphthol-4-sulfonic acid plays an indispensable role in many fields.

What are the physical properties of 1-Naphthol-4-Sulfonic Acid?

1-Naphthol-4-sulfonic acid, its physical state is mostly solid at room temperature. Looking at its color, it is often white to light gray powder. Smell it, there is little special smell. Its solubility is quite characteristic, soluble in water, because its molecular structure contains sulfonic acid group, which is hydrophilic and can interact with water molecules to form hydrogen bonds, so that it dissolves in water. In organic solvents, such as ethanol, ether, etc., its solubility is relatively weak. Because the polarity of organic solvents is quite different from that of water, it is difficult to form effective interactions with 1-naphthol-4-sulfonic acid molecules.
The melting point is about 120 ° C - 130 ° C. When heated to this temperature range, the molecule obtains enough energy to overcome the lattice energy, the lattice structure disintegrates, and the substance changes from solid to liquid. Its stability is acceptable under general conditions. However, when encountering strong oxidants, it is prone to oxidation reactions and structural changes. And in a strong acid and alkali environment, its original structure may also be destroyed due to reaction. This compound is widely used in the chemical industry and can be used as a dye, pharmaceutical intermediate, etc. Its physical properties have a great impact on related applications. For example, its solubility is related to its dispersion and mass transfer in the reaction system, and its melting point affects the choice of processing and reaction temperature conditions.

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

1-Naphthol-4-sulfonic acid is an organic compound. It is acidic and can dissociate hydrogen ions in water, showing acidic characteristics. In the stage of chemical reactions, this substance often acts as an intermediate and participates in many organic synthesis tricks.
Looking at its physical properties, it is mostly in solid form at room temperature, with white or near-white color, and has a certain solubility in water and some organic solvents.
When it comes to chemical properties, it bears the brunt of acidity. This is because the sulfonic acid group can neutralize and change with alkali substances to form corresponding salts.
Furthermore, its naphthalene ring structure gives it special reactivity. The hydrogen atom on the naphthalene ring can be replaced by other atoms or groups due to substitution reactions. Under appropriate conditions, halogenation reactions can occur, and halogen atoms enter the naphthalene ring; nitrification reactions can also occur, and the nitro group occupies the position of hydrogen.
In addition, the phenolic hydroxyl group in 1-naphthol-4-sulfonic acid also has a unique chemical behavior. The hydrogen of the phenolic hydroxyl group has certain activity and can participate in some reactions. At the same time, the phenolic hydroxyl group can change the electron cloud density of the phenyl ring, which affects the reactivity of other positions on the naphthalene ring, making the associated naphthalene part more vulnerable to the attack of electrophilic reagents.
Due to its unique chemical properties, 1-naphthol-4-sulfonic acid is used in dyes, medicine and many other fields, and plays an indispensable role in the process of industrial production and scientific research.

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

The preparation method of 1-naphthol-4-sulfonic acid used to follow a specific process path in the past. The method usually takes naphthalene as the initial material and first goes through the step of sulfonation. During sulfonation, sulfonating reagents such as sulfuric acid are used to interact with naphthalene. Under suitable temperature, reaction time and material ratio conditions, the sulfonic acid group of sulfuric acid (-SOH) replaces the hydrogen atom at a specific position on the naphthalene ring to obtain the initial mixture of naphthalene sulfonic acid.
After that, the resulting mixture needs to be isomerized. The purpose of isomerization is to rearrange the sulfonic acid based on the position on the naphthalene ring to obtain the target 1-naphthol-4-sulfonic acid structure. This process is often carried out at a specific temperature and reaction environment with the help of a specific catalyst. The choice and amount of catalyst used, as well as the control of reaction temperature and duration, all have a significant impact on the effect of isomerization and the purity of the product.
Furthermore, after the reaction is completed, a series of separation and purification operations are required. This step is designed to remove impurities such as unreacted raw materials, by-products and catalysts remaining in the reaction system. Commonly used separation methods include crystallization, extraction, distillation, etc. After fine separation and purification, a high-purity 1-naphthol-4-sulfonic acid product can be obtained. However, each step of this preparation method requires precise control of the reaction conditions, and a slight difference in the pool will affect the quality and yield of the product.

1-Naphthol-4-Sulfonic Acid during storage and transportation

1-Naphthol-4-sulfonic acid, when storing and transporting, need to pay attention to many matters. This is a common raw material for fine chemicals, with unique properties, so be careful when operating.
Bear the brunt, when storing, it should be placed in a cool, dry and well-ventilated place. Because of its hygroscopicity, if the environment is humid, it is easy to cause deliquescence and affect the quality. And it should be kept away from fires and heat sources to prevent danger. This substance is more sensitive to heat, easily decomposes when heated, and releases harmful gases, so temperature control is very critical.
Furthermore, storage needs to be classified and stored, and cannot be mixed with oxidants, alkalis, etc. 1-Naphthol-4-sulfonic acid is acidic, and it is easy to react with alkalis in contact, and oxidants may also react violently with it, endangering safety.
During transportation, there are also many points. The packaging must be tight to ensure that there is no leakage during the bumpy process. Select suitable transportation tools and follow relevant transportation regulations. Handle with care when loading and unloading to avoid damage to the packaging. During transportation, it is necessary to pay close attention to changes in temperature and humidity. In case of bad weather, corresponding protective measures should be taken.
In short, whether it is storing or transporting 1-naphthol-4-sulfonic acid, it must be operated in strict accordance with regulations and pay attention to details, so as to ensure personnel safety and product quality.