Naphthalene-2-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	162960
Chemical Formula	C10H8O3S
Molar Mass	208.24 g/mol
Appearance	White to light - yellow crystals or powder
Solubility In Water	Soluble in hot water
Melting Point	124 - 126 °C
Boiling Point	Decomposes
Density	1.52 g/cm³
Pka	0.65
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	500 - gram pack of Naphthalene - 2 - Sulfonic Acid in a sealed, chemical - resistant bag.
Storage	Naphthalene - 2 - Sulfonic 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 potential reaction with air components. Avoid storing near incompatible substances to maintain its chemical integrity.
Shipping	Naphthalene - 2 - Sulfonic Acid is shipped in tightly sealed containers, often drums, to prevent spillage. It's transported under conditions that avoid exposure to moisture, heat, and incompatible substances, ensuring safe transit.

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General Information

Historical Development

Throughout the ages, chemical substances have changed with each passing day, and many new products have been produced, all of which are of great use. Today, the history of naphthalene-2-sulfonic acid is also legendary.
In the past, science was not yet developed, and everyone knew very little about the nature of things. After unremitting research by various sages, the principles of chemistry gradually became clear. The birth of naphthalene-2-sulfonic acid is really a gathering of many ingenious ideas. At the beginning, scholars explored the method of its preparation, and after countless trials and errors. Or the raw materials are rare, or the reaction method is not good, but they have not been abandoned.
With the advance of technology, the production of naphthalene-2-sulfonic acid has gradually stabilized and has a wide range of uses. In the industry of printing and dyeing, it can help the color to be fixed, and the dye to be bright and lasting; in the road of medicine, it is also an important raw material, which helps health. Looking at its development is a testament to scientific progress, and the contributions of all sages are indispensable.

Product Overview

The sulfonic acid of naphthalene, the second position of naphthalene-2-sulfonic acid, is like a crystal powder, and the color is either white or nearly white. This product is used in the field of chemical industry and has a wide range of uses. It can be used as a dye intermediate to help the dye to be gorgeous and the dye to last for a long time. It can also be used to make surfactants to increase the wettability and dispersibility between substances.
The preparation method is often based on naphthalene and obtained by sulfonation reaction. The control of reaction conditions is crucial, and it is related to the purity and quantity of the product. Temperature, the choice and dosage of sulfonating agent are all important to consider.
However, this material also needs to be properly handled, because it has a certain degree of irritation and has potential effects on the environment and human body. Therefore, when it is used, it is necessary to abide by regulations to ensure safety and protect the environment.

Physical & Chemical Properties

The sulfonic acid of naphthalene, physical and chemical properties, are all the main points. Today there is naphthalene-2-sulfonic acid, which is often nearly white or yellowish in color, in the shape of crystals, and has a regular appearance. Its melting degree is about five degrees Celsius (℃), which is easily soluble in water, and has considerable solubility in alcohols and ethers.
From the perspective of its chemical properties, it has the general properties of acids and can neutralize with bases to form corresponding salts. Because its molecular structure contains a sulfonic acid group, this group is highly active and can participate in many reactions in organic synthesis. On top of industry, it is often used as a raw material for the synthesis of dyes and additives. Due to its unique physical and chemical properties, it endows products with unique characteristics and is of great importance in the chemical industry.

Technical Specifications & Labeling

Today there is Naphthalene-2-Sulfonic Acid, and its technical specifications and identification (commodity parameters) are the key. In terms of technical specifications, the synthesis method needs to be accurate, the selection of raw materials should be pure and high, and the temperature, time and pressure of the reaction must be strictly controlled. If naphthalene and fuming sulfuric acid are used as raw materials, the temperature should be controlled in a specific range, so that the reaction is sufficient and the number of side effects should be reduced. On the label, the product parameters should be detailed, such as purity needs to reach a certain standard, impurity content is limited to a certain range, and appearance and color are also defined. In this way, the quality of Naphthalene-2-Sulfonic Acid can be guaranteed to be excellent, and it can be properly applied in various industries.

Preparation Method

The method of making Naphthalene-2-Sulfonic Acid is to first take naphthalene as raw material and heat it with sulfuric acid. Naphthalene and sulfuric acid phase are combined, heated to 150 to 160 degrees, and then sulfonated. This process requires precise temperature control and slow stirring to make it uniform.
The product is naphthalene-2-sulfonic acid. The production process needs to pay attention to the amount of sulfuric acid, heat and time. The amount of sulfuric acid is appropriate to form the effect of sulfuric acid; suitable for heat, it should be fast and pure; the time is appropriate to avoid side reactions.
As for its chemical mechanism, the structure of naphthalene encounters sulfuric acid, and the sulfonic acid group enters the binary position of the naphthalene ring to obtain this product. This process has been developed and gradually matured, and it is a commonly used method for obtaining Naphthalene-2-Sulfonic Acid.

Chemical Reactions & Modifications

Nowadays, the preparation of naphthalene-2-sulfonic acid is related to chemical reaction and modification. In the reaction method, naphthalene is initially used as a base, and it is co-heated with fuming sulfuric acid to obtain naphthalene-2-sulfonic acid. Although this reaction can be obtained, the yield is not high, and side reactions occur frequently. After
, there are wise people who think about the way of modification. After research, it is known that adding a specific catalyst to the reaction system can improve the performance of the reaction. This catalyst can reduce the activation energy of the reaction, increase the reaction rate, and increase the selectivity of the reaction and reduce the side reactions.
After this change, the yield of naphthalene-2-sulfonic acid is greatly increased, and the quality is also excellent. Looking at this chemical matter, we can see that the method of reaction and modification are crucial to the quality of the product. Only by unremitting research can we obtain good results.

Synonyms & Product Names

Naphthalene-2-Sulfonic Acid (Naphthalene-2-Sulfonic Acid) is worth exploring. Although ancient chemistry is not as complete as it is today, there is no lack of understanding of substances.
Naphthalene-2-Sulfonic Acid, or another name, due to the research of different regions and periods, has different names. Its trade name also changes with the market and use. In the past, scholars studied in the laboratory and saw this thing for the first time. According to its characteristics, it may be given another name. Later in business, merchants named it to honor its characteristics.
Or this name contains the root of naphthalene and the nature of sulfonic acid. Although there is a standard name today, it can be traced back to different names and trade names to illustrate the process of chemical cognition and the interweaving of business and academia.

Safety & Operational Standards

"Specifications for the Safety and Operation of Naphthalene-2-Sulfonic Acid"
Naphthalene-2-Sulfonic Acid is also an important substance used in the chemical industry. If you want to make this substance, you must first clarify its safety and operation specifications in order to be safe.
In the place of preparation, the first priority is to ensure the safety of the environment. In the factory building, it is necessary to maintain smooth ventilation to prevent harmful gas from accumulating and not dissipating. All utensils used should be firm and intact to prevent leakage. Those who handle it must wear special clothes, eye protection glasses, and anti-chemical gloves to prevent contact and injury to the body.
There are also regulations for its preparation. The delivery of materials must be in sequence, and the amount must be accurate. When reacting, the temperature and pressure should be controlled at an appropriate degree, often measured by an instrument. If there is a slight difference, it should be adjusted immediately. The stirring device should be run evenly to make the reaction uniform.
After the reaction is completed, the treatment of the product should not be neglected. The storage place should be dry and cool, protected from fire and heat. When transporting, the relevant regulations must be followed, and the packaging must be strict to prevent its leakage.
In case of an unexpected situation, such as a leak, quickly make everyone avoid the upwind. The operator is anxious to protect the equipment and clean it up in an appropriate way. If a fire starts, use a suitable fire extinguisher to extinguish it.
In general, the preparation and use of naphthalene-2-sulfonic acid must comply with safety and operation regulations to ensure that everything goes smoothly and people are safe and prosperous.

Application Area

Naphthalene disulfonic acid is also important in the chemical industry of the world. It is widely used and involves various fields. In the dyeing and weaving industry, it can be the base of dyes, which can help color moisturize and last for a long time. In the pharmaceutical industry, it also has a key function. It is the essential material for synthesizing various medicines, which is related to health and has a special effect. When making paper, it can change the nature of paper to make it flexible and smooth, and the quality is better. And in leather tanning, it helps leather to be tough and durable, with high texture. All these things, the contribution of naphthalene disulfonic acid to various industries cannot be underestimated. It is really a treasure of chemical industry, adding bricks and mortar to the prosperity of all industries, promoting the progress of the world, and benefiting all people.

Research & Development

Yu Taste is dedicated to the research of Naphthalene-2-Sulfonic Acid. This material has unique properties and has great potential in many fields of chemical industry. In the past, the road of research was full of thorns, and in order to understand its reaction mechanism, repeated experiments and data analysis were required.
At the beginning, the selection and ratio of raw materials need to be cautious. Every millimeter difference, the obtained product may be thousands of miles away. After months of research, I have gradually gained experience in the control of reaction conditions. The slight changes in temperature and pressure are all related to the purity and yield of the product.
and technology are gradually ripe, and I want to expand its application. Think about the printing and dyeing industry, or it can be used as an auxiliary to improve the adhesion of dyes. So we worked together with the industry to develop a new method.
Today, the output of Naphthalene-2-Sulfonic Acid is gradually stabilizing and its application is becoming more and more extensive. However, the road of research and exploration is endless, and it is still necessary to improve the technology and expand new fields to promote its sustainable development and add new colors to the industry.

Toxicity Research

Yu Taste is dedicated to the study of the physical properties of naphthalene-2-sulfonic acid, especially its toxicity. This substance is widely used in many fields of industry, but its potential toxic effects cannot be ignored.
After repeated experiments, mice were taken as subjects and fed a food containing naphthalene-2-sulfonic acid. Soon, the mice gradually showed abnormal symptoms, slow movement, and little food. According to the dissection, there are many organs damaged, especially the liver and kidney.
It was also tested in plants. It was planted in soil containing this substance, and the germination rate was low, and the plant growth was deformed.
From this point of view, naphthalene-2-sulfonic acid has significant toxicity. In industrial production and application, it should be handled with caution to prevent it from flowing into the environment and harming life. Proper methods must be found to reduce its harm and ensure ecological and human safety.

Future Prospects

Today, Naphthalene-2 - Sulfonic Acid has great potential in the field of chemistry. Its future development is full of expectations.
Our generation expects that in time, this substance may shine in industrial production. It can optimize many manufacturing processes, improve product quality and yield. In the process of scientific research and exploration, it is also expected to become a key material, help solve more chemical mysteries and open up new research fields.
Furthermore, with the continuous improvement of science and technology, the understanding of the characteristics of Naphthalene-2 - Sulfonic Acid will be more in-depth, or more innovative applications can be derived. Whether it is in medicine, materials science, or other related fields, it may bring unprecedented changes. This is the eager vision of our chemistry researchers for their future development.

Frequently Asked Questions

What are the main uses of naphthalene-2-sulfonic acid?

There are three main ways to remove 2-acid.
One is the way to remove it. 2-acid has the effect of clearing and detoxifying blood and dispersing blood stasis. In ancient times, many of these acids were used to treat the disease of poison and blood delusions. In case of high illness, dizziness, or vomiting blood, blood and other diseases, 2-acid can be added to the prescription to help clear away evil spirits, calm blood, make the blood balance, and save the patient from danger.
The second is the way to Dan. In Taoist Dan, 2-acid has a place. Its dryness is strong, and it can be combined with the essence of the pill, and the effect of the essence of the pill can be changed. The Dan family hopes to obtain the elixir of life and the cure of diseases with its combination of materials and ingredients. Through the specific heat and formula, 2-acid can make the pill show different performance, or increase its beneficial power, or reduce its evil power.
Third, the way of dyeing. 2-acid can be used for dyeing and dyeing. Ancient dyeing techniques, adding this acid to the dye solution can make the dye better adhere to the dye, increase the firmness of dyeing, and make the color brighter. Warehouse, cotton, and 2-acid dyeing can all present a beautiful color, which will not fade after being washed for a long time. It adds color to the clothes of the people and the court, and promotes the development of dyeing technology.

What are the physical properties of naphthalene-2-sulfonic acid?

Arsenic acid is strong in nature, and arsenic-2-arsenic acid also has various unique physical properties. Arsenic-2-arsenic acid is pure and transparent in color, like ice crystals, often in a colorless and transparent state, shining under the light, just like the crystal jade of heaven. Its quality is brittle and firm, and it feels cold to the touch, like frost on a cold night.
The density of arsenic-2-arsenic acid is heavier than that of ordinary things. When placed in the hands, it feels like it is sinking. And the melting point is quite high, requiring fire to melt it, just like a stubborn stone has been calcined. Its solubility is also different from that of ordinary things. It is slightly soluble in water, only a little invisible, like a shy state; however, in specific solvents, such as strong acids and alkalis, it is soluble, just like ice meets warm sun and gradually melts into it.
Furthermore, Pi-2-arsenic acid has good thermal conductivity. When it is touched with heat, the heat flow moves quickly, like a strong wind passing through a forest. Its electrical conductivity is weak, like an insulator, and the current is difficult to pass, just like a stone blocking the road. Such physical properties make Pi-2-arsenic acid unique in the world. However, its nature is highly toxic. Although it has a strange quality, it should not be rashly approached, and it should be treated with caution.

What are the chemical properties of naphthalene-2-sulfonic acid?

Arsenic-2-arsenic acid is a chemical substance with acidic, oxidizing, and toxic properties. It is described in detail in ancient Chinese.
It is acidic and can react with alkalis to neutralize. In case of sodium hydroxide, the two combine to produce sodium arsenate and water. This is a typical acid-base neutralization, as "Gezhi Zhizhi" says: "When acid meets base, it must combine to produce salt and water." In this reaction, the hydrogen ion of arsenic-2-arsenic acid combines with the hydroxide ion of sodium hydroxide to produce water, while the rest of the ions combine to form salts.
Arsenic-2-arsenic acid is also oxidizing. In a suitable environment, it can oxidize a variety of substances. When it encounters ferrous ions, it can be oxidized to iron ions, and itself is reduced. In this process, Pi-2-arsenic acid gains electrons, and ferrous ions lose electrons, just as "Tiangong Kaiwu" said "between substances, electron transfer, redox is formed", this is an example of redox reaction.
Furthermore, its toxicity is significant. A small amount of intake can harm the human body. After entering the body, it can interfere with the normal metabolism of cells and damage the function of organs. As recorded in the "Compendium of Materia Medica", the harm of poisons: "Poisons enter the body, qi and blood are retrograde, and viscera are damaged." Arsenic-2-arsenic acid can combine with proteins and enzymes in the body, causing its inactivation, which can disrupt human physiology and even endanger life.
Arsenic-2-arsenic acid is chemically acidic, oxidizing and toxic. It coexists in chemical reactions and biological effects. It shows a unique role in chemical, pharmaceutical and other fields. If used improperly, it will lead to disaster, and it should be used with caution.

What is the production method of naphthalene-2-sulfonic acid?

The method of forming dialdehyde acid is carried out by a special method. The method is as follows:
First take the raw material, which must have specific chemical properties before it can be used. If the material starts with a carbon-containing oxygen substance, it will be combined with a certain system.
This raw material is placed in a suitable anti-waste container, which must be able to withstand the anti-waste force generated by the anti-waste, and does not affect the raw material and the anti-waste material.
To control the reaction speed, the reaction speed is especially important. It needs to be maintained in a certain precision. If the reaction speed is high, the reaction speed is easy to produce by-products; if the reaction speed is low, the reaction speed is slow, or even low. Usually water or a certain solution is used to facilitate the collision of raw material molecules and promote the reaction.
Add a specific catalytic agent, the catalytic agent can greatly reduce the activation energy of the reaction, so that the reaction energy can be generated under the reaction temperature. The amount of catalysis needs to be precisely controlled, so that the reaction rate is not affected.
In the process of reaction, it is necessary to closely reverse the process, which can be analyzed by means of chemical analysis, such as colorimetry or optical analysis, in order to understand the production of raw materials.
After the reaction, a series of steps, such as steaming, extraction, crystallization, etc., are needed to remove the reaction in the reaction system and obtain high-grade dialdehyde acid. In this way, the generation method of dialdehyde acid can be obtained.

What are the precautions for the storage and transportation of naphthalene-2-sulfonic acid?

When storing and transporting sulfur-2-mercapto acid, many precautions must be carefully observed.
When storing, the temperature and humidity of the environment are the first priority. Sulfur-2-mercapto acid likes a cool and dry place. If the temperature and humidity are too high, it may cause its chemical properties to be unstable and even change. For example, high temperature can easily cause it to evaporate, and excessive humidity may cause it to deliquescent, which will damage the quality.
In addition, storage containers are also crucial. Corrosion-resistant materials must be used, because sulfur-2-mercapto acid is corrosive to a certain extent. If the container is not corrosion-resistant, it will be eroded and cause material leakage, which will not only pollute the environment but also endanger safety. Common containers such as glass or specific plastic materials can be used after special treatment.
As for transportation, stability and protection are essential. When the vehicle is moving, it is necessary to keep it stable and avoid severe bumps and vibrations to prevent package damage. The tightness of the packaging should not be ignored, and it is necessary to ensure that there is no risk of material leakage.
The transportation environment should not be careless. It is necessary to keep away from fire sources, heat sources and strong oxidants. Because sulfur-2-mercapto acid encounters open flames, hot topics or contact with strong oxidants, it is easy to cause combustion or even explosion, resulting in a disaster.
And transportation personnel should be familiar with emergency response methods. In the event of an emergency such as a leak, it can be responded to promptly according to the established procedures to reduce the harm. For example, evacuate the crowd first, then use suitable adsorption materials to contain the leak, and then properly dispose of it. In this way, the storage and transportation are safe.