Products

2,4-Dinitrobenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code

948307

Chemical Formula C6H4N2O8S
Molar Mass 276.17 g/mol
Appearance Yellow to orange - red solid
Solubility In Water Soluble
Solubility In Organic Solvents Soluble in some polar organic solvents
Melting Point ~132 - 135 °C
Pka Typically acidic, with a low pKa value
Odor Odorless or faint odor
Stability Stable under normal conditions, but sensitive to strong reducing agents and heat
Packing & Storage
Packing 100g of 2,4 - Dinitrobenzenesulfonic Acid packaged in a sealed, corrosion - resistant container.
Storage 2,4 - Dinitrobenzenesulfonic 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, preferably in a corrosion - resistant material due to its acidic nature. It should be separated from incompatible substances to prevent potential reactions. Regularly check storage conditions to ensure safety.
Shipping 2,4 - Dinitrobenzenesulfonic Acid is a hazardous chemical. Shipping requires proper packaging in accordance with regulations. It must be labeled clearly, transported by approved carriers, and handled with care to prevent spills and ensure safety.
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2,4-Dinitrobenzenesulfonic Acid
General Information
Historical Development
"Memorizing the Development of 2tetranitrobenzenesulfonic Acid"
Futetranitrobenzenesulfonic acid is also a chemical substance. Its first appearance in the world is the fruit of the research of chemical sages. At that time, science was at the beginning of its rise, and all kinds of explorations were difficult. Scholars gradually understood its nature with keen insight and unremitting practice.
After asking the world, its application has become more and more widespread. In the field of industry, it has helped a lot, either as a catalyst or as a raw material, to promote the evolution of the process. With the passage of time, research has deepened, and its understanding has become more accurate. From the initial ignorance to the current detailed understanding of its mechanism and use, it all depends on the continued efforts of scholars of all dynasties. This chemical substance has left deep marks in the long river of science, witnessing the process of human exploration of nature and control of matter.
Product Overview
Description of 2,4-Dinitrobenzene Sulfonic Acid
2,4-Dinitrobenzene Sulfonic Acid is an important reagent for organic synthesis. Its color is light yellow, and it is a crystalline powder. It has certain solubility in water and organic solvents.
This product has high chemical activity and often participates in many reactions as an electrophilic reagent. In the field of organic synthesis, it can be used to introduce sulfonic acid groups and nitro groups to help build complex organic molecular structures. In pharmaceutical research and development, or involved in the preparation of specific drug intermediates; in materials science, or related to the synthesis of special functional materials.
The preparation of this substance requires careful operation. Because it contains nitro groups, it has certain oxidizing properties and potential danger. When storing, it should also be protected from heat and moisture, and placed in a cool and dry place to prevent deterioration and potential safety hazards.
In short, 2,4-dinitrobenzene sulfonic acid is of key value in chemical research and industrial production, and its rational use can open up a new path of scientific progress and technological innovation.
Physical & Chemical Properties
2,4-Dinitrobenzene sulfonic acid is also a chemical compound. Its physical properties, under normal conditions, are solid in shape, and the color may be light. Melting is special, and it starts to dissolve the liquid at a specific degree. This melting is the key to determining its properties.
Its chemical activity, the sulfonic acid group is acidic, can be used to neutralize the reaction, forming a phase. The dinitro group makes it oxidizing to a certain extent. In the field of synthesis, it can be used as an important factor, and it can be used for multiple reactions, so as to create new compounds. However, this thing also needs to be properly stored, because of its nature, or there is a certain danger, to prevent other things from causing unexpected reactions, in order to ensure safety.
Technical Specifications & Labeling
The process specification and identification (product parameters) of 2,4-dinitrobenzenesulfonic acid
F 2,4-dinitrobenzenesulfonic acid are important products in the chemical industry. The process specification, the first heavy raw materials are selected, and pure benzenesulfonic acid, nitric acid, etc. are required to be taken into the reactor according to the precise ratio. During the reaction, the temperature should be controlled in a suitable range, so as not to overheat or overcool, resulting in disordered reaction. And the stirring rate should be stable to make the material blend evenly.
As for the label, the name of the product outer packaging must be "2,4-dinitrobenzenesulfonic acid", with the chemical formula to correct its name. Details of content, purity and other parameters, such as purity should reach a specific value, impurity content must be at the specified lower limit. It is also necessary to display a hazard label, as it is corrosive and toxic to a certain extent. It warns users to exercise caution, avoid touching the skin and getting into the eyes, and store in a cool, dry place, away from fire and heat sources to prevent accidents.
Preparation Method
The preparation method of 2,4-dinitrobenzene sulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism, which is the key to chemical research.
To prepare 2,4-dinitrobenzene sulfonic acid, benzene sulfonic acid is used as the initial raw material. In a specific reaction vessel, add an appropriate amount of concentrated nitric acid and concentrated sulfuric acid as nitrifying reagents. The ratio of the two must be precisely controlled to ensure that the reaction proceeds in the desired direction.
At the beginning of the reaction, mix the raw materials evenly and slowly heat up to a suitable temperature. This process needs to be carefully observed to prevent side reactions from breeding due to excessive temperature. When the temperature reaches the set value, maintain a constant temperature to allow the reaction to proceed fully. During this period, nitric acid and benzene sulfonic acid undergo nitrification reaction, and the nitro group gradually replaces the hydrogen atom on The catalytic mechanism of
cannot be ignored. Concentrated sulfuric acid is not only the reaction medium in this reaction, but also has a catalytic effect, which can speed up the reaction rate and promote the efficient completion of the reaction.
After a certain period of reaction, the product may contain impurities. At this time, it is necessary to separate and purify by means of recrystallization, extraction, etc., to obtain high-purity 2,4-dinitrobenzene sulfonic acid. In this way, a complete preparation method for this chemical can be obtained.
Chemical Reactions & Modifications
Today there is a chemical thing called 2,4 - Dinitrobenzenesulfonic Acid. Its chemical reaction and modification are of great importance to our research.
This compound, the properties of the reaction, at the beginning, according to the inherent law, the sulfonyl group and the nitro group react with each other, and change according to the rules of chemistry. However, if you want to change its properties and make it more suitable for various uses, you need to be ingenious.
Or change the corresponding conditions, adjust the temperature and pressure, so that the reaction path is different from usual. Or add other substances as catalysts to cause the reaction to change rapidly, and the properties of the product also change. After various attempts, it is hoped that its performance can be optimized, or its stability can be increased, or its activity can be changed, so as to meet different needs, add to the chemical industry, and make progress in the process of material change. This compound can be used to the best of its ability and benefit the world.
Synonyms & Product Names
2,4-Dinitrobenzenesulfonic acid, its synonym and trade name, are related to the importance of our research. In the field of chemistry, the names of many substances, or have aliases, to meet the needs of different situations.
2,4-Dinitrobenzenesulfonic acid, or have aliases. Due to the development of chemical research, habits and application scenarios vary from place to place, resulting in similarities and differences in the name of the same substance. For example, in some ancient books, or see other names named because of similar structures and characteristics. This is all to help researchers communicate in various literature and practice.
The name of the trade name also varies according to the promotion and use of the merchant. Or it is named to highlight a certain characteristic and application direction, so that users can quickly understand its advantages. Therefore, the investigation of synonyms and trade names is of great benefit to the comprehensive understanding of the properties and applications of 2,4-dinitrobenzene sulfonic acid, and is also the cornerstone of the inheritance and expansion of chemical research.
Safety & Operational Standards
Specifications for safety and operation of 2,4-dinitrobenzenesulfonic acid
2,4-dinitrobenzenesulfonic acid (2,4-Dinitrobenzenesulfonic Acid) is a product often encountered in chemical research. Its properties are specific, and when used, it is necessary to follow safe operation to ensure the well-being of people.
#First, the essentials for storage
This product should be placed in a good place where it is dry and dry. Do not be near fire sources or sources to prevent accidents from occurring due to poor quality. The storage device must be sealed to prevent it from being changed due to the phase of the material in the air. And it should be placed in place of oxidation, original, and other materials to prevent interaction and cause damage.
#Second, the method of access
The method of access
The user must take precautions, such as anti-clothing, gloves, eyes, etc. This is why the body is damaged to all parts, so as to avoid damage. When making a mistake, do not let the product overflow. The utensils used must be used for dryness, so as to ensure that their quality is not affected. If it is accidentally dropped, quickly collect it with suitable things, such as sand, vermiculite, etc., and then place it properly, and do not leave it on the floor or on the ground.
#Third, the operation of the operation
The operation of the
is suitable for the operation of the machine. This is because the product or the harmful product can be quickly excluded from the outside, so that it will not be damaged in the room and endanger the person. The operation procedure, control degree, force and other components should be handled according to the established procedures, and should not be changed without authorization. In case of abnormal operation, stop the operation immediately, and take appropriate measures to solve the danger.
Therefore, the safe operation of 2,4-dinitrobenzenesulfonic acid is of great importance. Those who need to be vigilant immediately must be vigilant in order to use it and promote the development of chemical research.
Application Area
2,4-Dinitrobenzenesulfonic acid, a chemical substance, is widely used. In the dyeing and weaving industry, it can be used as a mordant to help dyes adhere to fabrics to make the color uniform and firm. In the field of pharmaceuticals, it is also useful. It is an important raw material for the synthesis of various drugs, or involved in adjusting drug activity and improving pharmacological properties. In the process of scientific research, it is often used as an analytical reagent to detect and identify specific substances, and to help explore the properties and reaction mechanism of substances. It is crucial in industrial production and scientific research, and can promote the development and progress of many fields. However, it should be used with caution. Because it has certain dangerous properties, it must be operated in accordance with regulations to ensure safety.
Research & Development
The research on 2,4-dinitrobenzenesulfonic acid
The research on 2,4-dinitrobenzenesulfonic acid is an important chemical substance. I have studied this substance for a long time, and I am well aware that it is used in various fields of chemical industry and has a wide range of uses.
At the beginning, I wanted to obtain this product and studied its synthesis method. After various attempts, the ratio of raw materials, the temperature of the reaction, and the characteristics of the medium are all related to the quality and quantity of the product. After months of hard work, I finally got a better method.
Both obtained this product and explored its properties. It has strong acidity and can be an excellent catalyst in some reactions. And its structure is special, or it can lead to unique chemical changes, in organic synthesis, or there is hope to open up new paths.
Looking at this product today, although it has been obtained, if you want to use it widely, you still need to forge ahead. Hope that it can expand its application in the future. In the fields of medicine, materials, etc., it has its own merits, adding to the progress of chemistry.
Toxicity Research
2,4 - Dinitrobenzenesulfonic Acid, chemical substances are also. Researchers of chemical substances often study the toxicity of this substance. Its color, such as powder, is occasionally used in chemical engineering or in the laboratory.
Test its toxicity, and many studies have been conducted. If this acid is accidentally damaged, it can cause burning and pain. If eaten, it is especially harmful, and it is feared and damaged, and it will affect its physiology. Inhalation of its powder or steam can also damage the lungs and cause respiratory diseases.
Therefore, in the study and use of this substance, we must be careful. The operator should wear the equipment to prevent it from being attached to the body. If there is any accidental contamination, quickly use clean water to remove it, and if it is serious, it will be urgent. In this way, Fang Security is complete, avoiding toxic harm.
Future Prospects
Today there is a thing called 2,4-dinitrobenzene sulfonic acid. I have been studying this thing for a long time. Observe its properties, observe its changes, and hope to develop its great use in the future.
When thinking about the future, it may be possible to see its function in the field of medicine. With its characteristics, it may help drugs to be accurately delivered to the hospital, cure diseases, and make patients recover early.
Or it may show its ability in the world of materials. With its characteristics, novel materials may be made, tough and specific, adding luster to buildings, equipment, etc., and enhancing their quality.
I will do my best to study it tirelessly, hoping to uncover more mysteries and make this 2,4-dinitrobenzene sulfonic acid shine in the future for the benefit of the world.
Frequently Asked Questions
What are the main uses of 2,4-dinitrobenzene sulfonic acid?
2% 2C4-diaminobenzenesulfonic acid is one of the organic compounds. It has many main uses and is a crucial intermediate in the dye industry. A wide variety of dyes, such as azo dyes, can be prepared through a specific chemical path. Such dyes are colorful and have good fastness. They are widely used in the fields of fabric dyeing and printing, making fabrics colorful.
In the field of medicine, it also has certain uses. In the synthesis process of some drugs, 2% 2C4-diaminobenzenesulfonic acid can be used as a key raw material to help synthesize compounds with specific pharmacological activities and contribute to the treatment of diseases.
In addition, in the photosensitive material industry, it is also indispensable. It can participate in the preparation of photosensitive materials, optimize the photosensitive properties, and make the imaging of photosensitive materials such as film and photo paper clearer and more accurate, thereby improving the imaging quality.
In summary, 2% 2C4-diaminobenzenesulfonic acid occupies an important position in many industries such as dyes, medicine, and photosensitive materials, and has a profound impact on industrial production and people's lives.
What are the physical properties of 2,4-dinitrobenzene sulfonic acid?
2% 2C4-dihydroxybenzoic acid, this compound is an organic compound. Its physical properties are quite unique.
Looking at its appearance, at room temperature, it is mostly white to light yellow crystalline powder, delicate and with a certain luster, like fine sand, and like slightly yellowing frost powder.
When it comes to the melting point, it is about 200-210 ° C. When the temperature gradually rises to this range, the compound gradually melts from solid to liquid, just like winter ice in the warm sun. This property makes it possible to realize the transformation of physical state under specific temperature conditions. In the preparation process of chemical industry, medicine, etc., accurate control of temperature is crucial.
Its solubility also has characteristics. In water, it has a certain solubility, just like salt dissolves in water. Although it is not soluble in any amount, it can be melted with water in an appropriate amount to form a uniform mixed system; in organic solvents, such as ethanol, acetone, etc., the solubility is better, and it is quickly and evenly integrated, just like ink dripping into water and spreading rapidly. This solubility property provides a variety of choices and conveniences for it in various chemical reactions and separation and purification steps.
Furthermore, the relative density of 2% 2C4-dihydroxybenzoic acid is moderate and slightly heavier than water. During actual operation and storage, it is necessary to pay attention to the density difference between it and other substances to prevent unexpected conditions during mixing. Its stability is good under normal conditions, but if it is placed in a place with high temperature, high humidity, or strong light, certain chemical changes may also occur. Therefore, when storing, it should be in a cool, dry, and dark place.
What are the chemical properties of 2,4-dinitrobenzene sulfonic acid?
2% 2C4-dinitrobenzoic acid, its strong and special properties, with strong oxidizing properties. Its color or light yellow, if crystalline, easy to explode in fire, dangerous, so it exists in a strict environment, leak-proof and fireproof, and be careful to wait for it.
Its pungent taste, touch the skin, if it enters the eyes, it is very harmful. In case of alkali, it should be changed into salt; in acid, it also moves, and its chemical properties are obvious. And it can react with various substances, such as alcohols, amines, etc., to generate new chemical production, and its properties will also change accordingly.
It is sensitive to light and heat, and long-term exposure will cause quality shift, so it is hidden in the dark and cool to avoid its qualitative change. It is widely used in the chemical industry, and the genus of frying and dyeing depends on its merits. However, because of its risk, the operator must be careful, abide by the rules and regulations, protect the body and protect the environment, and do not cause disasters. Use it carefully, observe its nature, and know its danger, so that you can use it well and be safe.
What should be paid attention to when storing and transporting 2,4-dinitrobenzene sulfonic acid?
2% 2C4-diaminobenzenesulfonic acid, when storing and transporting, many matters must be paid attention to.
First, store in a dry, cool and well-ventilated place. If this substance is covered in a humid environment, it is susceptible to deliquescence, resulting in damage to its quality. And it should be kept away from fires and heat sources to prevent unexpected explosions. Because of its certain chemical activity, it may react violently in case of heat or open flame. In addition, it needs to be stored in isolation from oxidants, acids, etc. Due to its active chemical properties, contact with them or chemical reactions can cause danger.
As for transportation, there are also many key points. Before loading the vehicle, it is necessary to carefully check whether the packaging is complete and sealed. If the packaging is damaged, there may be a risk of leakage during transportation, which endangers the environment and personal safety. During transportation, the speed of the vehicle should be slowed to avoid sudden braking and severe turbulence to prevent the packaging from crashing and breaking. The transportation vehicle should also be equipped with the corresponding variety and quantity of fire-fighting equipment and leakage emergency treatment equipment for emergencies. And during transportation, the driver and passenger must pay close attention to the status of the goods. If there is any abnormality, they should be properly disposed of quickly. The escort personnel should also be familiar with the characteristics of the substance and emergency treatment methods to ensure the safety of the whole transportation process. In this way, 2% 2C4-diaminobenzene sulfonic acid can be guaranteed to be safe during storage and transportation.
What are the preparation methods of 2,4-dinitrobenzene sulfonic acid?
2% 2C4-diaminobenzenesulfonic acid. There are many ways to prepare it, and there are several common ones mentioned above.
First, nitrobenzene is used as the starting material. First, nitrobenzene is sulfonated to obtain m-nitrobenzenesulfonic acid, and then reduced to obtain m-aminobenzenesulfonic acid. After that, through complex steps such as diazotization and coupling, 2% 2C4-diaminobenzenesulfonic acid can be prepared. There are many steps and complicated processes in this way, but the raw materials are easy to obtain, which is a common preparation path.
Second, aniline is used as the starting point. Aniline is sulfonated to obtain p-aminobenzenesulfonic acid, followed by nitration with appropriate nitrifying reagents to obtain 2-nitro-4-aminobenzenesul This method is relatively simple, but the nitrification step requires precise control of conditions to ensure the purity and yield of the product.
Third, with the help of specific catalysts and reaction conditions, benzene is directly reacted with amino and sulfonic acid donors. This is an emerging method. Although it has the advantages of simple reaction steps and high atomic economy, the research and development of catalysts and the optimization of reaction conditions still need to be further explored in order to achieve the standard of industrial production.
Preparation of 2% 2C4-diaminobenzene sulfonic acid, when considering the availability of raw materials, cost, equipment conditions and other factors according to the actual situation, carefully select the appropriate method to achieve the purpose of efficient, economical and environmentally friendly preparation.