4-Nitrochlorobenzene-2-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	470684
Name	4-Nitrochlorobenzene-2-Sulfonic Acid
Molecular Formula	C6H4ClNO5S
Molar Mass	237.62 g/mol
Appearance	Yellowish - brown crystals or powder
Solubility In Water	Slightly soluble
Melting Point	Around 120 - 125 °C
Boiling Point	Decomposes before boiling
Acidity	It is an acidic compound due to the sulfonic acid group
Odor	Odorless or faint odor

Packing & Storage

Packing	500g of 4 - Nitrochlorobenzene - 2 - Sulfonic Acid packaged in air - tight plastic bags.
Storage	4 - Nitrochlorobenzene - 2 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances like strong oxidizers and bases. Store in tightly sealed containers to prevent moisture absorption and potential leakage, safeguarding both the chemical's integrity and the safety of the storage environment.
Shipping	4 - Nitrochlorobenzene - 2 - Sulfonic Acid should be shipped in tightly sealed, corrosion - resistant containers. It must be transported in accordance with hazardous chemical regulations, ensuring proper ventilation and separation from incompatible substances.

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General Information

Historical Development

4 - Nitrochlorobenzene - 2 - Sulfonic Acid is an important product in the chemical industry. Looking back in the past, its development process contains many key nodes. At the beginning, chemical researchers made unremitting explorations in the laboratory, trying to synthesize this substance with different raw materials and methods. At that time, the technology was still immature, the yield was not high and the quality fluctuated.
Then, with the refinement of chemical theory, many scholars deeply analyzed the reaction mechanism and optimized the synthesis path. The selection of raw materials is more precise, and the regulation of reaction conditions is more precise, so that the output of 4 - Nitrochlorobenzene - 2 - Sulfonic Acid has steadily increased and the quality has become more stable.
Today, the scale of industrial production has become increasingly large, and the production process has continued to innovate. This product has been widely used in many fields, leaving a deep imprint on the development of the chemical industry.

Product Overview

4-Nitrochlorobenzene-2-sulfonic acid, this is an important product of chemistry. Its unique properties are white to light yellow crystalline powder. In the chemical industry, it has a wide range of uses. It can be used as a dye intermediate to help dyeers prepare brilliant colors; it is also a key raw material for pharmaceutical synthesis, helping pharmacists to develop a good prescription for the world.
The preparation method requires specific processes and precise steps. It is often carefully reacted from 4-nitrochlorobenzene and fuming sulfuric acid. During the reaction, factors such as temperature, concentration, and duration need to be strictly controlled to ensure the purity and quality of the product.
However, this substance is also dangerous. When operating, be sure to follow safety procedures and take protective measures to prevent harm to people and the environment.
In short, 4-nitrochlorobenzene-2-sulfonic acid has an extraordinary position in the chemical and pharmaceutical industry. However, when using and preparing, safety and quality should not be ignored.

Physical & Chemical Properties

The physicalization of 4-nitrochlorobenzene-2-sulfonic acid is of great importance. Its color is often low, like the micro-surface of autumn. Its shape, multi-crystalline solid, dense, like finely crafted jade.

and melting, probably in a certain range, which is made by its molecules. Its solubility, in some soluble solutions, can be dissolved, such as water; in water, it has limited solubility, just like oil meltwater.
Its chemical properties are also active, and the presence of nitro groups makes it oxidizing to a certain extent. The characteristics of sulfonic acid groups make it capable of multiplexing and reacting, such as water can be formed, such as water. And these physical properties, for their use in the chemical industry, are the foundation, the cornerstone.

Technical Specifications & Labeling

There is now a process for making 4 - Nitrochlorobenzene - 2 - Sulfonic Acid, and its process specifications and identification (product parameters) are the key.
If you want to make this product, the first raw materials are carefully selected, and the quality is pure. In the regulation of the reaction, the temperature, duration, and reagent preparation must strictly follow a certain number. If the temperature is high, the speed will be high, and the side will be clumped; if the temperature is low, it will be slow, or the yield will not be reached. The same is true for the duration. If it is not enough, it should not be completed, and if it is too long, the energy consumption will increase.
On the label, the composition, character, and purity are described. 4 - Nitrochlorobenzene - 2 - Sulfonic Acid, when its color, state, taste, and purity must be accurately measured, marked on the label, so that the viewer is clear. The product parameters are in place, and the product is in compliance and can be listed for need.

Preparation Method

The method of making 4-Nitrochlorobenzene-2-Sulfonic Acid is related to the raw materials, production process, reaction steps and catalytic mechanism. The raw material is often chlorobenzene, and nitrosulfuric acid is used for nitrification and sulfonation. First, the nitrosulfuric acid mixed with chlorobenzene and concentrated nitric acid and concentrated sulfuric acid is co-placed in the reactor at a suitable temperature. The temperature is controlled in a specific range. At first, low temperature is used to prevent side reactions, and then the temperature is gradually increased to promote the reaction speed. Among them, concentrated sulfuric acid is a sulfonating agent and a dehydrating agent, and it also has catalytic power, which helps the reaction to form products. After the reaction is completed, the product is precipitated through the steps of cooling, separation and purification. Cooling the system to cool down, by means of separation of products and by-products, unreacted raw materials, and then purified to obtain high purity 4 - Nitrochlorobenzene - 2 - Sulfonic Acid, this method can stabilize the desired product.

Chemical Reactions & Modifications

The reversal of 4-Nitrochlorobenzene-2-Sulfonic Acid is the gist of the research. Its reversal is also often involved in sulfonation, nitrification, etc. The sulfonation, the sulfonic acid group is placed in a specific position, so that the molecule is raw and new.
However, the chemical properties of this compound may not be good, and it needs to be improved. Or reactive parts, such as the degree of resistance and catalysis, in order to achieve better efficiency. Changing the reverse solubility, or can make the reaction ideal, so that the properties of the product are better. In this way, 4-Nitrochlorobenzene-2-Sulfonic Acid can be used in a wide range of fields, such as dyes, chemical synthesis, etc., to achieve greater functionality for the world.

Synonyms & Product Names

4 - Nitrochlorobenzene - 2 - Sulfonic Acid, the synonym and trade name of this product are quite important. Its synonyms, such as p-nitrochlorobenzene - 2 - sulfonic acid and the like. Trade names also have specific titles in the industry.
The name of a chemical substance, synonyms can help people recognize the same thing from different expressions. Trade names are related to market circulation and identification. 4 - Nitrochlorobenzene - 2 - Sulfonic Acid is used in the chemical industry because of its unique properties and is used in synthesis, production and other processes. Knowing its synonyms and trade names is convenient for industry communication, data access, and can clarify its references in different scenarios. It is of great significance and indispensable for research and production.

Safety & Operational Standards

4 - Nitrochlorobenzene - 2 - Sulfonic Acid is an important chemical compound in the field of chemistry. In its experimental preparation and production process, safety and operating standards are of paramount importance, which is related to the safety of experimenters and endangers the quality of the product.
In terms of safety, this compound is dangerous. Its chemical properties are active, or it reacts violently with other substances. Therefore, when storing, it should be stored separately in a cool, dry and well-ventilated place, away from fire sources, heat sources and oxidants. During the use process, the experimenter must be fully armed, wearing protective clothing, protective gloves and goggles to prevent skin contact and splashing into the eyes, because it may cause serious irritation and damage to the skin and eyes.
At the level of operation specifications, the process needs to be accurately planned before the experiment, and the details of each step and latent risks are familiar. When dissolving the compound, the suitable solvent should be selected according to its characteristics, and the temperature and stirring speed should be strictly controlled to prevent the reaction from going out of control. During the reaction process, various parameters, such as temperature, pressure and pH, need to be closely monitored, recorded in time and adjusted according to the actual situation. If there is an abnormality in the reaction, emergency measures should be taken immediately in accordance with regulations to ensure the safety of the experiment.
Product treatment should not be ignored. Waste containing 4-Nitrochlorobenzene-2-Sulfonic Acid must be properly disposed of in accordance with environmental protection requirements, and it is strictly forbidden to discharge it at will to avoid polluting the environment.
In conclusion, in the work related to 4-Nitrochlorobenzene-2-Sulfonic Acid, whether it is experimental research or industrial production, safety and operating standards must be given top priority, so as to ensure personnel safety, environmental friendliness and smooth production.

Application Area

4-Nitrochlorobenzene-2-sulfonic acid is also a chemical product. Its application field is quite extensive. In the dyeing and weaving industry, it can be used as a raw material for dyes to help bright and lasting colors. Fabrics are dyed with it, and the color is gorgeous and will not fade for a long time. In the field of medicine, it also has its use. It can be a key intermediate for the synthesis of drugs and help develop special agents to cure various diseases. In the field of pesticide manufacturing, it can participate in the synthesis of high-efficiency and low-toxicity pesticides, protect crops, resist pests, and maintain the fertility of crops. All of these demonstrate the important functions of 4-nitrochlorobenzene-2-sulfonic acid in various fields. It is an indispensable substance in the chemical industry.

Research & Development

There is now a name 4 - Nitrochlorobenzene - 2 - Sulfonic Acid. As a chemical researcher, I have investigated this substance, and its research and development methods are related to many things.
This substance has unique properties and may have potential in the chemical industry. If you want to explore it in depth, you must clarify its structure and characteristics. First analyze its composition experimentally and observe its reaction under different conditions. Or you can use ancient research methods to explore its essence step by step.
The way of development can find new applications. If it can be compatible with other things, or generate new wonders. However, the impact on the environment and people should also be taken into account. With a cautious heart, seeking its development, we hope to contribute to the progress of the chemical industry, making it practical, developing its value, and promoting the prosperity of this field.

Toxicity Research

Taste the chemical industry, there are many categories, among which the study of poisons is particularly important. Jinyan 4 - Nitrochlorobenzene - 2 - Sulfonic Acid This substance, the study of its toxicity, should not be ignored.
Look at its properties, or have the ability to erode skin and rotten muscles, and touch it will damage the skin and cause unbearable pain. If it enters through the mouth and nose, it will fear damage to the viscera, mess with the circulation of qi and blood, and cause illness.
In the environment, it is also very harmful. If it seeps into the soil, the soil will lose fertility and plants will be difficult to grow; if it enters the water, the water source will be polluted and the aquarium will be robbed.
Therefore, study its toxicity, investigate its harm, and ensure that the protection policy is thorough, and those who use it are aware of its risks and proceed with caution. In this way, the safety of the person and the peace of the environment can be ensured.

Future Prospects

I try to research chemical products, 4 - Nitrochlorobenzene - 2 - Sulfonic Acid This agent is also unique in nature and has a wide range of uses. Looking at today's world, the chemical industry is booming, and the demand for such products is increasing.
Looking to the future, 4 - Nitrochlorobenzene - 2 - Sulfonic Acid should be expanded in various fields. In the field of medicine, it may help the research and development of new drugs, contributing to the treatment of diseases; in the field of materials, it may be able to optimize the material and make its performance better. Although the road ahead may encounter technical bottlenecks and environmental protection considerations, we scientific researchers should have a tenacious heart, study physics, and move forward. In the near future, 4 - Nitrochlorobenzene - 2 - Sulfonic Acid will be able to shine, create new achievements for human well-being and scientific and technological progress, and become the bright future of chemical industry.

Frequently Asked Questions

What are the main uses of 4-Nitrochlorobenzene-2-Sulfonic Acid?

4-Nitrochlorobenzene-2-sulfonic acid is an important category of organic compounds. It has a wide range of uses and has significant applications in various fields of chemical industry.
Bearing the brunt, this compound is a key position in the preparation of dyes. Due to its special structure, it can be used as a precursor for the synthesis of a variety of dyes with bright colors and good fastness. Through a series of fine chemical reactions, specific functional groups are introduced, and colorful dyes can be derived to meet the strict needs of textile, printing and dyeing industries for dye color and quality.
Furthermore, in the field of pharmaceutical synthesis, 4-nitrochlorobenzene-2-sulfonic acid also has its uses. It may be an important intermediate for the synthesis of some specific drugs. With its unique chemical activity, it helps to build complex drug molecular structures, provides indispensable basic raw materials for pharmaceutical research and development, and makes great contributions to conquering various diseases and improving human health.
In addition, it can also be seen in the process of pesticide creation. With it as a starting material, ingenious chemical modification and transformation can be used to produce pesticide products with high insecticidal, bactericidal or herbicidal properties. Such pesticides play a crucial role in ensuring the growth of crops, improving food yield and quality, and resisting the attack of pests and diseases.
In summary, 4-nitrochlorobenzene-2-sulfonic acid is an indispensable key raw material in many important fields related to the national economy and people's livelihood, such as dyes, medicines, and pesticides, and is of immeasurable value in promoting the development and progress of the chemical industry.

What are the physical properties of 4-Nitrochlorobenzene-2-Sulfonic Acid?

4-Nitrochlorobenzene-2-sulfonic acid is one of the organic compounds. Its physical properties are quite unique. Looking at its appearance, it is often white to light yellow crystalline powder, which is easier to identify in many chemical raw materials.
When it comes to solubility, it is soluble in water, which makes it more convenient to participate in the reaction in the chemical reaction or process of many aqueous systems. The dissolution process, according to common sense, is the interaction between molecules and water molecules. With the hydrophilicity of the sulfonic acid group, it gradually disperses in water to form a uniform solution.
As for the melting point, it is about a specific temperature range, and this temperature is the critical value of its transition from solid to liquid. The determination of the melting point is of great significance in the purity identification and process application of substances. If the purity is high, the melting point range is relatively narrow and close to the theoretical value; if it contains impurities, the melting point may be offset and the range becomes wider.
The density of 4-nitrochlorobenzene-2-sulfonic acid is also an important physical property. Its density value reflects the tightness of the molecular arrangement of the substance. In the industrial production process involving material measurement and mixing ratio control, accurate grasp of the density data can ensure the stability of product quality.
In addition, although its smell is not strong and pungent, it also has its own unique smell. When handling and storing this substance, the perception of odor can help personnel detect any abnormal conditions such as leakage to prevent harm to the environment and human health.
In short, the physical properties of 4-nitrochlorobenzene-2-sulfonic acid are diverse, and each property plays a key role in chemical production, research and application, and cannot be ignored.

What are the chemical properties of 4-Nitrochlorobenzene-2-Sulfonic Acid?

4-Nitrochlorobenzene-2-sulfonic acid is one of the organic compounds. It is acidic, because it contains a sulfonic acid group (\ (- SO_ {3} H\)), this group can release protons, can be partially ionized in water, and is acidic.
Its chemical activity is quite strong, and the nitro group (\ (- NO_ {2}\)) interacts with the chlorine atom (\ (-Cl\)) and the sulfonic acid group. The nitro group has strong electron absorption, causing the electron cloud density of the benzene ring to decrease, so that the nucleophilic substitution reaction easily occurs at the location of the chlorine atom. Chlorine atoms can be replaced by a variety of nucleophiles, such as hydroxyl (\ (-OH\)), amino (\ (- NH_ {2}\)), etc., to form corresponding derivatives.
Although the sulfonic acid group enhances the water solubility of the molecule, it also affects the reactivity of the molecule. Under certain conditions, the sulfonic acid group can participate in the reaction or be replaced by other groups.
And because of its nitro group, it has certain oxidation properties and can participate in the redox reaction under suitable conditions. And the structural characteristics of the molecule make 4-nitrochlorobenzene-2-sulfonic acid an important intermediate in the field of organic synthesis for the preparation of many organic compounds with specific functions, such as dyes, drugs, etc. Its chemical properties are complex and unique, making it valuable for both chemical research and industrial production.

What is the preparation method of 4-Nitrochlorobenzene-2-Sulfonic Acid?

The preparation method of 4-nitrochlorobenzene-2-sulfonic acid, although the ancient book "Tiangong Kaiwu" does not detail the preparation method of this specific compound, it can be deduced from the chemical principle and the ancient methods of acid production, sulfonation and nitrification.
To make 4-nitrochlorobenzene-2-sulfonic acid, first take chlorobenzene as the starting material. In ancient times, take chlorobenzene, or get it from benzene and chlorine gas by light or catalysis. In the kettle, put an appropriate amount of benzene, pass chlorine gas, and use iron filings or ferric trichloride as the catalyst. Chlorobenzene can be obtained when it passes.
The next step of sulfonation. In ancient times, sulfonation, fuming sulfuric acid or concentrated sulfuric acid The obtained chlorobenzene is put into a sulfonation kettle, fuming sulfuric acid is added, the temperature is moderately controlled, about one hundred and twenty to one hundred and fifty degrees Celsius, and stirred over time. The sulfate group of the sulfonating agent is combined with chlorobenzene, and the sulfonic acid group is introduced at the ortho-chlorobenzene position to obtain chlorobenzene-2-sulfonic acid.
Then perform nitrification. Mixed acid of concentrated nitric acid and concentrated sulfuric acid is commonly used for nitrification. Chlorobenzene-2-sulfonic acid is added into the nitrification kettle, and mixed acid is slowly added, and the temperature is strictly controlled, about 30 to 40 degrees Celsius. Under the action of sulfuric acid, nitroyl positive ions are formed, which attack chlorobenzene-2-sulfonic acid molecules and introduce nitro groups at the counterposition of chlorine to obtain 4-nitrochlorobenzene-2-sulfonic acid.
After the reaction is completed, the product is separated and purified. The reaction solution is diluted with water, crystallized, and filtered to obtain a crude product. Then by recrystallization, an appropriate solvent is selected, such as a mixture of ethanol and water, the crude product is dissolved, and impurities are removed by heat filtration. The crystallization is cooled to obtain pure 4-nitrochlorobenzene-2-sulfonic acid.

4-Nitrochlorobenzene-2-Sulfonic Acid in storage and transportation

4-Nitrochlorobenzene-2-sulfonic acid is also a chemical substance. When storing and transporting, be sure to pay attention to many matters.
Its nature may be dangerous, and when storing, the first thing to do is to choose a suitable place. It should be placed in a cool, dry and well-ventilated place, away from fire and heat sources to prevent it from being dangerous due to heat. And it should be stored separately from oxidants and alkalis, etc., and must not be mixed with storage, because it may react violently with other things, causing harm.
In addition, the storage place must be equipped with suitable materials to contain the leakage, so as to prevent the accident, it can be dealt with in time to prevent its spread and cause greater harm.
As for transportation, it should not be ignored. Before transportation, make sure that the packaging is complete and the loading is safe. During transportation, make sure that the container does not leak, collapse, fall or damage. When driving, keep away from fire and heat sources, and prevent sun exposure and rain. And the transportation vehicle should be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. The escort personnel must also be familiar with the nature of the goods transported, emergency treatment methods, etc., and carefully protect them all the way to ensure safe transportation. In this way, when storing and transporting 4-nitrochlorobenzene-2-sulfonic acid, you can avoid danger and ensure everything goes smoothly.