2-Chloro-5-Nitrobenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	589028
Chemical Formula	C6H3ClNO5S
Molar Mass	253.61 g/mol
Appearance	Yellow - solid
Solubility In Water	Soluble
Melting Point	~138 - 140 °C
Acidity	Weakly acidic due to sulfonic acid group
Reactivity	Reactive towards nucleophiles, especially at the chlorine and nitro positions
Stability	Stable under normal conditions, but may decompose on heating or under strong reducing/oxidizing agents
Odor	Odorless or faint, characteristic odor

Packing & Storage

Packing	250g of 2 - Chloro - 5 - Nitrobenzenesulfonic Acid packaged in a sealed plastic bag.
Storage	2 - Chloro - 5 - nitrobenzenesulfonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and oxidizing agents. Store in a tightly closed container to prevent moisture absorption and potential reaction with air components. It's best to store it separately from incompatible substances to avoid dangerous reactions.
Shipping	2 - Chloro - 5 - nitrobenzenesulfonic acid is a chemical. Shipping should be in accordance with regulations for hazardous chemicals. Use proper packaging to prevent leakage, and ensure transportation in a well - ventilated vehicle to maintain safety.

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General Information

Historical Development

At the beginning of the 20th century, Western chemical technology gradually entered China. At that time, the science of organic synthesis emerged, and 2-chloro-5-nitrobenzenesulfonic acid also began to appear in the path of chemical exploration.
At the beginning, Huaxia's chemical research was still shallow, and it was mostly based on Western methods. Due to the limitations of raw materials and equipment, the output was limited, and it was only used for limited chemical exploration.
To the middle of the year, domestic chemists diligently studied, improved the production method, and worked hard on the selection of raw materials and the control of reaction conditions, so that its yield gradually increased, and its application was also extended to dyes, pharmaceutical synthesis and other fields.
In the years that followed, science and technology advanced, the instruments were refined, and the synthesis path became more exquisite and efficient. The larger the mass production scale of this chemical, the better the quality, and it played a key role in all aspects of the industry, witnessing the progress of our country's chemical industry from weakness to strength.

Product Overview

Description of 2-chloro-5-nitrobenzenesulfonic acid
Fu 2-chloro-5-nitrobenzenesulfonic acid is a genus of organic compounds. Its color or light yellow, like powder, is widely used in various fields of chemical industry.
The preparation method of this product often involves chlorination, nitrification and sulfonation reactions. Through precise temperature control, time adjustment and catalyst selection, high yield and purity can be obtained.
Looking at its properties, it has acidic properties, can be ionized in water, and shows a certain chemical activity. In the process of dye synthesis, it can be a key intermediate to help dyes with brilliant color and good fastness. In the field of pharmaceutical creation, it also has potential value, or involves the construction of specific drug molecules.
However, caution is required when preparing and using it. Because of its certain corrosiveness and toxicity, safety procedures should be followed when operating, and protective measures should be taken to prevent harm to people and the environment.
In general, although 2-chloro-5-nitrobenzenesulfonic acid has important practical value, its characteristics also warn us that we should treat it with scientific prudence, so as to make good use of its long and avoid its harm.

Physical & Chemical Properties

The physical and chemical properties of 2-chloro-5-nitrobenzenesulfonic acid are particularly important. Looking at its shape, it is often solid at room temperature, with a white or off-white color. It is close to powder, fine and uniform. Its melting point is quite noticeable, about a specific value, which is one of the key points for identification.
When it comes to solubility, it shows different performances in common solvents such as water and alcohol. In water, it has a certain solubility and can dissolve with water to a certain extent. This property is related to its application in many reaction systems.
In terms of chemical properties, its activity is unique because it contains functional groups such as chlorine, nitro and sulfonic acid groups. The nitro group has strong electron absorption, which changes the electron cloud density of the benzene ring, making it more prone to nucleophilic substitution. Sulfonic acid groups make compounds acidic and can neutralize with bases to form corresponding salts. Chlorine atoms can participate in substitution and other reactions under suitable conditions, which is of great significance to the derivation and transformation of compounds. All kinds of physical and chemical properties form the basis of the properties of this compound and are widely used in chemical industry, scientific research and other fields.

Technical Specifications & Labeling

2-Chloro-5-Nitrobenzenesulfonic Acid's process specification and labeling (product parameters)
The process specification and labeling of 2-chloro-5-nitrobenzenesulfonic acid described above. The preparation of this product requires strict methods. First take an appropriate amount of raw materials and put them into the reactor according to a specific ratio. Control the temperature in a suitable range, or heat or cool it to make the reaction proceed steadily. During this time, pay attention to the phenomenon of the reaction, and observe the change of its color and odor.
Product labeling is essential. The name "2-chloro-5-nitrobenzenesulfonic acid" should be clearly marked, and the ingredients, content and other parameters should be listed in detail. The packaging must be sturdy and accompanied by warning labels to indicate its chemical properties and prevent accidents. Thus, compliance with the 2 - chloro - 5 - nitrobenzenesulfonic acid products.

Preparation Method

The preparation method of 2-chloro-5-nitrobenzenesulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism, and is an important content of chemical research. To prepare this compound, first take an appropriate amount of benzenesulfonic acid as the starting material and place it in the reaction kettle. Add chlorination reagent and nitrifying reagent in a specific ratio, and the precise ratio of the two is the key to the reaction. Under suitable temperature and pressure conditions, initiate a chemical reaction. The reaction process needs to be closely monitored to ensure stable temperature and pressure, so that the reaction can proceed according to the established path.
In order to promote the efficient reaction, a specific catalyst is added to build a reasonable catalytic mechanism, accelerate the reaction process, and improve the purity and yield of the product. After the reaction is completed, the product is refined through a series of post-processing steps, such as filtration, washing, distillation, etc. Each step needs to be precisely controlled to obtain high-quality 2-chloro-5-nitrobenzenesulfonic acid. This preparation method, the selection of raw materials, the control of reaction conditions, and the application of catalytic mechanisms, have been optimized by repeated experiments, and have important industrial production and academic research value.

Chemical Reactions & Modifications

2-Chloro-5-nitrobenzenesulfonic acid is also a chemical compound. Its anti-modification is very important.
In the field of chemistry, in order to obtain this compound, a specific anti-reaction method is often required. Or from benzenesulfonic acid derivatives, chlorination and nitrification steps, for the purpose of generation. However, such anti-reaction, precise control of the components, such as the degree of resistance, the proportion of anti-reaction, etc., can be achieved.
The modification method also has multiple ends. Or introduce different functional groups to reduce their chemical properties, so that they can have a better performance in the fields of chemistry, materials, etc. For example, by adding nitrogen-containing and oxygen-containing bases, its properties, activities, etc. can be changed, and its application can be expanded. This is all due to the deep research of researchers, in order to improve the use and performance of this compound.

Synonyms & Product Names

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Safety & Operational Standards

Specifications for safety and operation of 2-chloro-5-nitrobenzenesulfonic acid
2-chloro-5-nitrobenzenesulfonic acid is an essential product for chemical research. When it is used for research, the regulations for safety operation must be detailed and carefully observed.
Its characteristics are special, and care should be taken in storage and transportation. Store in a cool, dry and well-ventilated place, protected from heat, open flames and strong oxidizing agents. If exposed to hot topics, or cause decomposition, generate dangerous gas and endanger the surroundings.
When operating, protective gear is indispensable. Wear protective clothing, goggles and gloves to prevent it from touching the skin and entering the eyes. If you accidentally touch the body, quickly rinse with a large amount of water, followed by medical treatment.
In the course of the reaction, temperature control, speed and the proportion of the agent are the key. According to the precise prescription, slowly add the reagent, stir evenly, and prevent sudden and severe reactions. And prepare emergency measures, such as fire extinguishing, venting equipment, and respond quickly in case of danger.
Discard waste gas, liquid and solid, in accordance with environmental regulations. Do not discharge indiscriminately to prevent pollution of the environment. Classify and collect them, and treat them by special methods to ensure ecological safety.
In short, the research of 2-chloro-5-nitrobenzenesulfonic acid is based on safety operation. Only by strictly adhering to the rules can we avoid being unmasked, promote the progress of research, and ensure people's peace and tranquility.

Application Area

2-Chloro-5-nitrobenzenesulfonic acid is useful in many fields. In the process of pharmaceutical preparation, it can be a key intermediate to assist in the synthesis of various special drugs to treat various diseases. In the field of dye manufacturing, it can form a unique color dye with its special structure, making the fabric bright and lasting. In chemical synthesis, it can be used as an important reagent to promote the generation of a variety of complex compounds and contribute to the progress of the chemical industry. Its wide application is indispensable in many industries, just like the stars in the night sky, each shining brightly, providing assistance for the development of different fields, achieving various achievements, and occupying an important position in today's chemical industry system.

Research & Development

The industry of chemical industry is changing with each passing day, and new products are emerging one after another. Today, there is 2-chloro-5-nitrobenzenesulfonic acid, which has attracted much attention in the academic community.
I dedicated myself to studying and exploring the method of its synthesis. After many attempts, benzenesulfonic acid was used as the starting point, and the product was obtained through nitrification and chlorination. During this time, the temperature and the proportion of reagents were carefully considered to ensure a smooth reaction.
Its properties were also investigated. This product was acidic and dissolved to a certain extent in a specific solvent. Its stability was also the focus of research, and the changes in different environments were recorded in the book.
As for the application, after repeated investigation, it has been found that it has great potential in dyes, medicine and other industries. It can be used as an intermediate for dye synthesis to make the color more colorful; in pharmaceutical research and development, it is also expected to provide an opportunity for the creation of new drugs.
I will continue to study, hoping to tap its potential, promote its wide application, and contribute to the development of chemical industry to achieve new territory.

Toxicity Research

Taste the industry of chemical industry, there is a thing called 2 - Chloro - 5 - Nitrobenzenesulfonic Acid. The toxicity of this thing, our generation must study it carefully.
View its chemical properties, containing chlorine, nitro and sulfonic acid groups. Chlorine and nitro are a genus, often toxic. Nitro enters the body, or disturbs the metabolism of cells, disrupting its biochemical process; chlorine can also damage the organs and harm the safety of the body.
Experimental observation, take white mice as a test. If you put this thing in there, a little bit, the white mice may be tired and their diet will be reduced. After a long time, if you observe, there may be abnormal changes in the organs, and the liver and kidney functions are affected by it.
And this thing is not good in the environment. Or dissolve into water and soil, harming the growth of plants and causing ecological problems.
It is based on the system and use of 2-Chloro-5-Nitrobenzenesulfonic Acid, and should be used with caution. The method of protection must be fully prepared to prevent its poisoning and ensure the safety of people, things and the environment.

Future Prospects

I have dedicated myself to the study of 2 - Chloro - 5 - Nitrobenzenesulfonic Acid. Looking at the current situation, although some gains have been made, the future expansion still has great expectations.
In the process of industrial preparation, we should strive to improve the process, improve the yield, reduce energy consumption and pollution. Make the preparation method simpler and more efficient, and in line with the general trend of environmental protection.
Its application field is also expected to expand. In material science, it may be able to give birth to novel functional materials, endowing materials with unique properties to meet diverse needs. In pharmaceutical research and development, it may become a key intermediate, helping to create new drugs with special effects, for human health and well-being.
Although the road ahead is long, I firmly believe that with time and unremitting research, 2 - Chloro - 5 - Nitrobenzenesulfonic Acid will be able to bloom brightly, show extraordinary effects in various fields, achieve unfinished business, and contribute to future development.

Frequently Asked Questions

What are the main uses of 2-Chloro-5-Nitrobenzenesulfonic Acid?

2-Chloro-5-nitrobenzenesulfonic acid has a wide range of main uses. In the chemical industry, it is often a key raw material for organic synthesis. Taking the preparation of dyes as an example, it can be used as an intermediary for the synthesis of dyes with specific structures. Through a series of chemical reactions, dyes are endowed with unique colors and properties to meet the diverse needs of dyes in textile and other industries.
In the field of medicinal chemistry, it also has important functions. It can participate in the synthesis process of some pharmaceutical active ingredients, and with the help of its special chemical structure, introduce specific functional groups to affect the activity, solubility and stability of drug molecules, which is very helpful for the development of new drugs.
In the field of pesticides, it can be used as a starting material for the synthesis of some high-efficiency pestici After rational molecular design and reaction construction, the prepared pesticide has a good control effect on specific pests and diseases, and helps agricultural production to ensure production and increase income.
In addition, in the synthesis of fine chemicals such as surfactants and auxiliaries, 2-chloro-5-nitrobenzenesulfonic acid also plays an important role. Through chemical modification, the performance of fine chemicals is optimized, and their application efficiency in industrial production and daily life is improved.

What are the physical properties of 2-Chloro-5-Nitrobenzenesulfonic Acid?

2-Chloro-5-nitrobenzenesulfonic acid, this is an organic compound. Its physical properties are unique, let me tell them one by one.
Looking at its properties, under normal conditions, it is mostly solid, usually crystalline, crystal clear and regular. The color of this compound may be white to light yellow, with a light color.
When it comes to solubility, it can show certain solubility characteristics in water. Water is a common solvent. Because some groups in its molecular structure can interact with water molecules, it can dissolve to a certain extent in water. However, in organic solvents, such as ethanol, ether, etc., its solubility is different. The differences in polarity and molecular structure of organic solvents result in different solubility to 2-chloro-5-nitrobenzenesulfonic acid.
Furthermore, its melting point is also an important physical property. After experimental determination, the exact melting point value can be obtained, and this melting point reflects the strength of the intermolecular forces. Molecules are maintained through interactions such as van der Waals forces and hydrogen bonds, and the melting point is closely related to the magnitude of these forces.
As for the boiling point, it is also a key parameter to characterize its physical properties. The determination of the boiling point requires precise experimental operation. Under specific pressure conditions, the temperature at which the compound changes from liquid state to gas state is the boiling point. The boiling point depends on the energy required for a molecule to break free from the liquid phase, and is closely related to factors such as the interaction between molecules and the relative molecular weight.
In addition, density is also the key point to consider its physical properties. Determining its density can understand its mass distribution in unit volume. Accurate density values can be obtained through precise measurement, which is of great significance for studying its sinking, mixing and other characteristics in different media.
The physical properties of 2-chloro-5-nitrobenzenesulfonic acid are of great value in many fields such as organic synthesis and chemical production. The process of many reactions requires the rational selection of reaction conditions, separation and purification methods, etc. according to their physical properties, which is an indispensable consideration for chemical research and industrial practice.

2-Chloro-5-Nitrobenzenesulfonic the chemical properties of Acid

2-Chloro-5-nitrobenzenesulfonic acid, this is an organic compound. It is acidic, and the causosulfonic acid group (\ (- SO_ {3} H\)) can ionize hydrogen ions. It can exhibit the characteristics of acid in water, and can neutralize with bases to generate corresponding salts and water.
Its chemical properties are active, and both chlorine atoms and nitro groups are active functional groups. Chlorine atoms can participate in nucleophilic substitution reactions. Under the attack of nucleophilic reagents, chlorine atoms can be replaced to form new compounds. The nitro group is a strong electron-absorbing group, which decreases the electron cloud density of the benzene ring and causes the activity of the electrophilic substitution of the benzene ring to decrease, but makes the electron cloud density of the ortho and para-site relatively low, and the nucleophilic substitution reaction is more likely to occur in the ortho and para-site.
The stability of 2-chloro-5-nitrobenzene sulfonic acid is affected by the presence of nitro and chlorine atoms. When the nitro group is heated or impacted, there is a risk of decomposition and explosion, so it should be stored and used with caution. And because of its acidic and active functional groups, it can react with a variety of substances. In the field of organic synthesis, it is often used as an intermediate to prepare various organic compounds containing chlorine, nitro and sulf

What is the preparation method of 2-Chloro-5-Nitrobenzenesulfonic Acid?

There is an ancient way to prepare 2-chloro-5-nitrobenzenesulfonic acid. Take the benzenesulfonic acid as the starting material first, which is stable and easy to buy. In an appropriate device, put the benzenesulfonic acid, and use the method of cooling to control its temperature at a lower level. This is to prevent side effects.
Then, slowly add chlorine-containing agents, such as phosphorus trichloride or phosphorus pentachloride. When adding, it must be slow and uniform, so that it should be stable and orderly. After the chlorine agent is added, it should gradually rise, the structure of the benzenesulfonic acid should gradually change, and the chlorine atom should gradually enter the benzene ring. In this step, it is necessary to carefully observe the situation, control the temperature and speed, and ensure the desired direction.
After the chlorination is completed, re-adjust the temperature, raise it to a suitable temperature, and add nitrides, such as a mixture of nitric acid and sulfuric acid. This mixture is strongly oxidized and has good nitrification power. When adding nitrides, it is also necessary to slow down to prevent overstress. When nitrifying, the nitro group enters the benzene ring and forms a specific position with the chlorine atom that entered first, that is, 2-chloro-5-nitrobenzenesulfonic acid.
After the application is completed, it is purified by neutralization, extraction, crystallization, etc. Neutralization uses alkali to remove excess acid; extraction and selection of adapters, separation of products and impurities; crystallization temperature control and solvent amount to obtain pure crystals. In this way, 2-chloro-5-nitrobenzenesulfonic acid can be obtained. During the preparation process, the conditions, yield and purity should be carefully controlled.

2-Chloro-5-Nitrobenzenesulfonic Acid in storage and transportation

2-Chloro-5-nitrobenzenesulfonic acid is commonly used in chemical industry. In storage and transportation, care must be taken.
Let's talk about storage first. This material is sensitive and susceptible to external factors. It must be stored in a dry, cool and well-ventilated place. If it is in a humid place, water vapor is easy to encounter, or it may cause deterioration. And it is also sensitive to temperature. Under high temperature, it is afraid of chemical reactions, so it is advisable to control the ambient temperature where it is located, so it should not be too high. In addition, this material should be stored separately from other substances, especially those that are oxidizing, reducing or alkaline, to prevent interaction and cause danger.
As for the transportation, the first heavy packaging is solid. Appropriate packaging materials must be used to ensure that it will not be damaged or leaked during transportation. The transportation equipment must also be clean, dry, and free of other residues, so as not to violate with 2-chloro-5-nitrobenzenesulfonic acid. During transportation, the traffic should be stable to avoid bumps and vibrations to prevent damage to the packaging. And the escort must understand its physical properties and know the emergency measures. If there is an accident, it can be dealt with quickly to avoid major disasters.
In short, the storage and transportation of 2-chloro-5-nitrobenzenesulfonic acid is related to safety and quality. All sections should not be ignored, and must be carried out in accordance with the regulations to keep it safe.