Meta Phenylenediamine-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	892735
Chemical Formula	C6H7NO5S
Molar Mass	203.19 g/mol
Appearance	White to light - beige solid
Solubility In Water	Soluble
Pka Value	Typically in the acidic range
Melting Point	Decomposes before melting
Odor	Odorless or very faint odor
Density	Specific density data (g/cm³) depending on form
Stability	Stable under normal conditions
Reactivity	Reactive with strong oxidizing agents

Packing & Storage

Packing	Meta Phenylenediamine - 4 - Sulfonic Acid: Packed in 1 - kg bags for easy handling.
Storage	Meta Phenylenediamine - 4 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and direct sunlight. Store in tightly closed containers to prevent moisture absorption and exposure to air, which could lead to chemical degradation. Avoid storing near oxidizing agents as they may react.
Shipping	Meta Phenylenediamine - 4 - Sulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Special care is taken to prevent moisture and contamination during transit, adhering to strict chemical shipping regulations.

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General Information

Historical Development

The industry of chemical industry is changing with each passing day. There is a thing called Meta Phenylenediamine - 4 - Sulfonic Acid. The origin of this substance can be traced back to the past. At the beginning, its discovery was accidental, but it gradually emerged between various experimental explorations.
At that time, the public studied unremitting, observed its characteristics, and analyzed its structure. With the passage of time, its understanding deepened. From the initial ignorance to the gradual ability to control its preparation method, the application path has gradually expanded. It was first used in niche fields, and later because of its unique nature, it has been involved in dyeing, weaving, medicine and other industries, and gradually became an indispensable material. Its development process, just like the stars gradually shining, started from the end of the micro, and now has a wide impact, which is a good story in the history of chemical industry.

Product Overview

"In the world of the Yuan and Ming Dynasties, there is a strange thing named Meta Phenylenediamine - 4 - Sulfonic Acid. Its color is pure and stable, its shape is like crystal powder, slightly soluble in water, changes when heated, and changes when exposed to light.
The preparation of this product is not easy, and it can only be obtained by using concentrate, following the secret method, temperature control and time adjustment. At the beginning, the craftsman begged for its method, tried and failed repeatedly, but unremitting, and finally obtained the wonderful way.
It is widely used, and in the industry of dyeing and weaving, it can be used as a dye agent. The color of cloth is beautiful and firm, and the wind invades water and does not fade. In the road of medicine, it also has its merits, assisting in the research of new drugs and curing diseases. And in all aspects of the chemical industry, it can show its ability.
This Meta Phenylenediamine - 4 - Sulfonic Acid is a treasure of the chemical industry and is immeasurable in the world. "

Physical & Chemical Properties

Meta Phenylenediamine - 4 - Sulfonic Acid, its material has specific physical and chemical properties. Looking at its shape, under normal conditions or crystalline, the color is white, the crystal form is uniform, and the luster is introverted. In terms of its solubility, it is more soluble in water, and in many organic solvents, the dissolution potential is different, which is due to the intermolecular force.
In terms of its chemical activity, the amino group coexists with the sulfonic acid group on the benzene ring, resulting in its active reactivity. The amino group is rich in electrons, easy to electrophilic, and the sulfonic acid group is obviously acidic. The two interact with each other, making this substance a key player in many chemical reactions. For example, in the coupling reaction, amino groups can be cleverly combined with diazonium salts to form new compounds, forming an important step in the field of dye synthesis. Its physical and chemical properties are of great value in the process of industry and scientific research.

Technical Specifications & Labeling

Today there is a chemical product called Meta Phenylenediamine - 4 - Sulfonic Acid. The process specification and identification (product parameters) of its production are related to the quality and application of this product.
The production of this product also requires rigorous methods. The material selection should be precise, and the ratio must be accurate. The temperature and time of the reaction are fixed. The control is accurate, and the quality can be obtained.
The logo is also heavy, and the product parameters are detailed, so that users know its nature and use. The purity and amount of impurities need to be clear. In this way, this product can be used in all industries without error, and it is helpful for both industry and research. The process specification is consistent with the identification (product parameters), which is the quality of this Meta Phenylenediamine - 4 - Sulfonic Acid.

Preparation Method

To prepare the product of Meta Phenylenediamine - 4 - Sulfonic Acid, its raw materials and production process should be described in advance. Using p-nitroaniline and concentrated sulfuric acid as raw materials, the initial state can be formed by sulfonation reaction. The method is as follows: put an appropriate amount of p-nitroaniline in the kettle, slowly inject concentrated sulfuric acid, and control the temperature to a suitable degree to make the sulfonation complete.
When the sulfonation is completed, the reduction step is entered. Usually iron powder or sulfide base are used as reducing agent, and the nitro group of the sulfonated product is also an amino group to obtain Meta Phenylenediamine - 4 - Sulfonic Acid. In this case, attention should be paid to the reaction conditions, precise temperature control, speed, etc., in order to achieve the best state.
Looking at its catalytic mechanism, appropriate catalysts can promote the reaction, and the yield and rate of production can be improved. For example, some metal salts or organic compounds can be used as catalysts, but the appropriate one must be selected according to the actual situation, and the dosage must be adjusted to ensure the efficient and stable production.

Chemical Reactions & Modifications

The transformation of Meta Phenylenediamine-4-Sulfonic Acid should and change. The transformation should also be, and the conditions are very important. If the temperature is high, it should be sick, but if it passes, it will be associated with the disease, and the production is impure.
When the temperature is controlled properly, with a good catalyst, it can promote the direction of adaptation and increase its yield. As for the change, change its structure and adjust its properties. Adding a group to the side chain can improve its solubility and stability.
If you want to do something good, you must investigate the causes and analyze its mechanism, so as to achieve the best of the reaction and the good of the physical properties. Follow this path, or when you produce this product, you can get good results, so that it can be used well in various domains.

Synonyms & Product Names

Among the shops in the city of Wenfu, there is a thing called Meta Phenylenediamine-4-Sulfonic Acid. This thing is also known by other names, such as p-phenylenediamine-4-sulfonic acid. It is used in the field of industry and commerce and has a wide range of uses.
Because of the chemical industry, it is often relied on as a raw material. Or it is used in the production of dyes, with a bright and lasting color; or it is used in the research of medicine, and its efficacy should not be underestimated.
The people in the city call it by its name, which is mostly simple, so that aliases are popular. However, no matter what the name is, it refers to the same thing. When the business is operating, it is necessary to clarify its various names so as not to confuse them, so as to smooth its business and

Safety & Operational Standards

"Code of Safety and Operation of Meta-phenylenediamine-4-sulfonic Acid"
Meta-phenylenediamine-4-sulfonic acid is also a chemical substance. When preparing, storing and using it, strict safety and operating practices should be followed to ensure the safety of people and the environment.
When preparing, all raw materials must be carefully selected and their quality must meet standards. The operation room must be well ventilated to prevent the accumulation of harmful gases. The operator should be in front of suitable protective equipment, such as gas masks, protective gloves and protective clothing, to avoid direct contact with the substance.
When storing, it should be placed in a cool, dry and ventilated place, away from fire sources and oxidants. The container must be tightly sealed to prevent it from leaking. If there is any leakage, dispose of it quickly according to the established procedures, and do not allow the pollution to spread.
When using, strictly follow the operating procedures. The dose is precisely controlled and cannot be increased or decreased at will. During the mixing or reaction process, pay close attention to changes in parameters such as temperature and pressure. If there is any abnormality, stop immediately and handle it properly.
After the experiment is completed, the utensils used are washed in time, and the residual materials are disposed of according to regulations and cannot be discarded at will. Regularly check the operating environment to ensure that all indicators meet the standards.
In short, the safety and operating standards of meta-phenylenediamine-4-sulfonic acid are of great significance and must be treated strictly to ensure stability.

Application Area

Today there is a compound called Meta Phenylenediamine - 4 - Sulfonic Acid. This compound has a wide range of uses. In the field of dyeing, it can be used as a dye intermediate, and the dye aid has a bright and long-lasting color. When dyed, the fabric has good color fastness and brilliant color. In medicine and chemical industry, it is also useful. It is a key raw material for the synthesis of many drugs, or it can adjust the activity of drugs and improve their properties. In the field of materials science, it can participate in the preparation of special materials, strengthen specific properties of materials, such as improving material stability. It plays an important role in various application fields, and it is a chemical substance that cannot be ignored.

Research & Development

In recent years, researchers have paid attention to the research and development of Meta Phenylenediamine - 4 - Sulfonic Acid. This compound has special properties and has great potential in various fields.
We have studied its chemical properties in detail, analyzed its structure, and explored its reaction rules. After many experiments, we have obtained key data to show the balance between its stability and activity. And develop a new method for its preparation, hoping to improve the yield and reduce energy consumption.
And think about its use. In the dyeing and weaving industry, it can be used as a high-quality dye intermediate, giving bright color and durability. In pharmaceutical research and development, or as a key raw material to help create new drugs.
At present, although it has been achieved, the road ahead is still far away. When we continue to study, explore its new uses, and refine our preparation techniques, we hope that this compound can be used by the world, promote the prosperity of various industries, and move forward steadily in the process of research and development, creating more achievements.

Toxicity Research

The nature of taste and smell is related to human use. In the genus of chemical industry, toxicity research is particularly important. Today there is Meta Phenylenediamine-4-Sulfonic Acid, and the study of its toxicity should not be ignored.
Examine its quality in detail, explore its involvement in the human body and the environment. Or touch it, smell it, eat it, all need to be observed. In the context of experiments, observe its effect on various organisms, cell changes, and signs of the body.
Also think about the process of its production and use, prevent its escape, and eliminate its source of harm. If the toxicity is significant, it is necessary to find appropriate measures, or ease the method, or better materials, so as to minimize the harm. The study of toxicity is for the safety of people's livelihood and the peace of the environment, and it is necessary to be careful.

Future Prospects

In today's world, science and technology are changing day by day, and so are chemical substances. Meta Phenylenediamine - 4 - Sulfonic Acid This product has great potential in the field of chemical industry. Although it is currently or only emerging, its future development can be looked forward to.
Looking at the past, many newly created chemical substances did not show their greatness at first, but gradually began to shine in various industries to help progress. Meta Phenylenediamine - 4 - Sulfonic Acid is also expected to follow this path and open up new frontiers in materials science, drug research and development and other fields.
Our generation of chemical researchers should study diligently, use their characteristics, and explore their capabilities. With unremitting efforts, Meta Phenylenediamine - 4 - Sulfonic Acid will shine in the future, contributing to human well-being, creating endless possibilities and developing brilliant prospects.

Frequently Asked Questions

What are the main uses of Meta Phenylenediamine-4-Sulfonic Acid?

Meta-Phenylenediamine-4-Sulfonic Acid, which is m-phenylenediamine-4-sulfonic acid, is widely used. In the dye industry, its position is pivotal, and it is a key intermediate in the synthesis of various dyes. With this material, many bright-colored and high-performance dyes can be prepared, which can be used in fabric dyeing and other fields to make fabrics show colorful colors, and the color fastness of the dye is quite good. It can be washed and illuminated many times without fading easily.
It is also indispensable in the manufacture of pigments. Pigments made from this raw material are widely used in inks, coatings and other products. The addition of such pigments to inks can make the color of printing patterns clear and lasting; when used in paints, it can enhance the color expression and durability of coatings, providing high-quality color schemes for surface decoration such as buildings and furniture.
Furthermore, in the synthesis of some special chemicals, m-phenylenediamine-4-sulfonic acid also plays an important role. Its unique chemical structure allows it to participate in specific organic reactions to synthesize chemicals with special properties to meet the needs of special materials in industries such as electronics and medicine. For example, in the field of electronics, it is used to prepare materials with specific electrical conductivity or optical properties, contributing to the development of electronic products.

What are the physical properties of Meta Phenylenediamine-4-Sulfonic Acid?

Meta-Phenylenediamine-4-Sulfonic Acid, that is, m-phenylenediamine-4-sulfonic acid, has the following physical properties:
This substance is mostly solid at room temperature. Looking at its color, it is usually white to light gray powder with fine texture. Its smell is relatively weak, and it is not pungent or unpleasant under normal circumstances.
When it comes to solubility, m-phenylenediamine-4-sulfonic acid is soluble in water and can be well dispersed and dissolved in water to form a uniform solution. This property makes it easy to participate in reactions or play a role in many chemical reactions or industrial processes using water as a medium. However, its solubility in organic solvents, such as common ethanol and ether, is relatively limited.
As for the melting point, isophenylenediamine-4-sulfonic acid has a specific melting point value. When heated to the corresponding temperature, its solid structure begins to disintegrate and gradually turns into a liquid state. This melting point temperature is one of its important physical markers, which is crucial for identifying the substance and controlling the temperature conditions in related industrial production.
Density also has its specific value. This density value determines its mass under a specific volume. When storing, transporting, and mixing with other substances, density factors are important for considering its dosage, space occupation, and ratio with other materials.
In addition, the stability of m-phenylenediamine-4-sulfonic acid is also one end of its physical properties. Under normal environmental conditions such as temperature and humidity, it can maintain a relatively stable chemical structure and physical form, and is not prone to spontaneous significant changes. However, under special conditions such as high temperature, high humidity or contact with specific chemical substances, its stability may be affected, which may lead to changes in physical or chemical properties.

Is Meta Phenylenediamine-4-Sulfonic Acid chemically stable?

The element p-phenylenediamine-4-sulfonic acid has stable properties. Looking at its structure, the benzene ring is the group, and the amine group is coexisting with the sulfonic acid group. The benzene ring has a conjugated π bond system, and the structure is solid and fixed. This is the stable base. Although the
amine group has certain activity and can participate in many reactions, under normal circumstances, it coexists with the sulfonic acid group in this molecule to check and balance each other. The sulfonic acid group carries strong polarity, which can regulate the charge distribution of molecules to a certain extent and resist the overreaction of amine groups.
In the environment, if there is no strong oxidation, strong reduction or special catalytic conditions, this substance can survive. In case of mild acid and base, it is difficult to undergo drastic changes. Genesulfonic acid basically has the property of acid-base buffering, which can protect the stability of molecular structure.
However, it should be clear that if the environment is severe, such as high temperature and aerobic, or when exposed to strong oxidants, the amine group may be oxidized, and the sulfonic acid group may also change, the stability of the molecule will be broken. However, in the normal chemical industry and storage environment, terephthalamide-4-sulfonic acid can generally maintain its chemical stability and is not easily mutated.

What is the production process of Meta Phenylenediamine-4-Sulfonic Acid?

Meta-Phenylenediamine-4-Sulfonic Acid is m-phenylenediamine-4-sulfonic acid, and its preparation process is as follows:
The preparation of m-phenylenediamine-4-sulfonic acid is an important matter in chemical synthesis. This process often begins with a suitable starting material and is obtained by a delicate method through a multi-step reaction.
The starting material is commonly selected m-phenylenediamine, which is the basis of the reaction. Then, it is met with a suitable sulfonating agent. The commonly used sulfonating agent is concentrated sulfuric acid. Concentrated sulfuric acid has strong sulfonation ability and can sulfonate specific positions of m-phenylenediamine.
When reacting, the temperature needs to be carefully controlled. If the temperature is too high, it may cause side reactions and the product is impure; if the temperature is too low, the reaction will be slow and time-consuming. Generally speaking, the reaction temperature is controlled in a specific range, such as under certain heating conditions, so that the reaction can proceed smoothly.
The reaction system also needs to pay attention to the stirring situation. Uniform stirring can make the reactants fully contact, accelerate the reaction process, and make the reaction more efficient.
After the reaction is completed, it still needs to go through the process of separation and purification. The separation method can be selected according to the characteristics of the product and impurities, such as filtration and extraction. Purification is mostly by recrystallization to improve the purity of the product and achieve the desired quality.
After these steps and careful operation, high-purity phenylenediamine-4-sulfonic acid can be obtained to meet the needs of many industries and scientific research.

What are the precautions for using Meta Phenylenediamine-4-Sulfonic Acid?

Meta-Phenylenediamine-4-Sulfonic Acid, that is, m-phenylenediamine-4-sulfonic acid, when using this product, many things should be paid attention to.
First safety protection. It is toxic and irritating, and can cause damage if it touches the skin, eyes or inhales its dust and vapor. Therefore, when using it, be sure to wear protective clothing, protective gloves and goggles to prevent direct contact with the body. In case of accidental contact, rinse with plenty of water immediately and seek medical treatment according to the specific situation.
This is the storage condition. Store in a cool, dry and well-ventilated place, away from fire and heat sources to prevent danger. At the same time, it should be stored separately from oxidizing agents, acids, alkalis, etc., and should not be mixed to avoid chemical reactions.
Furthermore, the operating specifications during use should not be ignored. The use environment should have good ventilation conditions to prevent dust accumulation. When weighing and transferring, the action should be gentle to avoid excessive dust. And according to the specific use and reaction requirements, the amount of use should be precisely controlled, and it must not be increased or decreased at will, so as not to affect the effect or lead to other adverse consequences.
In addition, after use, the disposal of remaining materials and waste should also be cautious. The remaining materials should be properly sealed and stored according to regulations. Waste needs to be treated in accordance with relevant environmental protection regulations and cannot be discarded at will to avoid pollution to the environment. Only when using Meta-Phenylenediamine-4-Sulfonic Acid can the safety of the use process be ensured and the desired effect can be achieved.