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Sulfonic Acid Series

Sulfamic Acid Series

Guanidine Series

Disodium 5,5-Indigodisulphonate

Lingxian Chemical

Specifications

HS Code	934597
Chemical Formula	C16H8N2Na2O8S2
Molecular Weight	466.35 g/mol
Appearance	Dark blue powder
Solubility	Soluble in water
Ph In Solution	Neutral to slightly alkaline
Stability	Stable under normal conditions
Odor	Odorless
Melting Point	Decomposes before melting
Absorption Wavelength	Max absorption around 610 - 620 nm
Uses	Used as a dye, in biochemical assays

As an accredited Disodium 5,5-Indigodisulphonate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage

Packing	Disodium 5,5 - Indigodisulphonate packaged in 500g containers.
Storage	Disodium 5,5 - Indigodisulphonate should be stored in a cool, dry place away from sources of heat and ignition. Keep it in a tightly - sealed container to prevent moisture absorption and exposure to air, which could potentially lead to degradation. Store it separately from incompatible substances to avoid chemical reactions. Follow proper warehouse storage regulations for enhanced safety.
Shipping	Disodium 5,5-Indigodisulphonate is shipped in well - sealed containers, protected from moisture and light. It follows strict chemical - shipping regulations to ensure safe transportation, safeguarding handlers and the environment.

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General Information

Historical Development

"Historical Rheology of Sodium Indigo Disulfonate"
Sodium indigo disulfonate, used in dyeing in ancient times, has been used for a long time. In the past, the ancestors were diligent in the art of dyeing. At the beginning, only the natural color was obtained, extracting plants and ores for use. And sodium indigo disulfonate is now available, and the method of dyeing is one of the changes.
At the beginning, it was difficult to prepare, and it was only taken by a few skilled craftsmen. However, with the passage of time, the skills have gradually refined, and it is widely used in dyeing workshops. It can make the color of fabrics gorgeous and lasting, and is deeply loved by the world.
In recent times, science has advanced, and its research has deepened. The preparation method has been improved, and the yield has also increased. It is not only used for fabric dyeing, but also involved in other industries. Looking at its history, from its initial rarity to its wide use in later generations, it is actually one of the examples of the development of chemical materials.

Product Overview

Today there is a product called Disodium 5,5 - Indigodisulphonate. This is a chemical product with unique properties. Its appearance, or powder state, color or bright, or plain, varies according to different situations.
Its stability can exist in many environments. It is widely used in the chemical industry and is often used as the backbone of dyes. The dyed product has good color fastness and will not fade for a long time.
And because of its special chemical structure, it can be used as a catalyst in specific reactions to promote the smooth progress of the reaction and improve the yield. And its environmental protection characteristics cannot be ignored. Compared with other chemicals, it is less harmful to the environment.
Preparation of this product requires precise methods, temperature control and proportion adjustment, all of which must be just right, in order to obtain high-quality products. In this way, the beauty of this chemical product can be revealed.

Physical & Chemical Properties

"On the Physical and Chemical Properties of Indigo Disulphonate Sodium"
Sodium indigo disulphonate (Disodium 5,5 - Indigodisulphonate) is a special compound. Its color may be dark blue, and the appearance is calm and dignified, just like the abyss of a pool.
In terms of physical characteristics, it is often in the state of powder, delicate like dust, and soft to the touch. There is a certain solubility in water, and it gradually melts into the water, making the water body its color, a deep blue, if the blue sky sinks in water.
On chemical properties, it has a certain stability. When it encounters strong acids and bases, its structure may change. It can participate in specific chemical reactions and can form complexes with some metal ions, resulting in slightly different properties. In the oxidation-reduction reaction, it also has a unique performance, either as an oxidizing agent or a reducing agent, which changes according to the environment. This is its important physical and chemical properties, which are widely used in many fields and are important in chemical research and industrial production.

Technical Specifications & Labeling

"Technical Specifications and Labeling of Indigo Disulphonate Sodium (Product Parameters) "
Today there is indigo disulphonate sodium (Disodium 5,5 - Indigodisulphonate), and its technical specifications are of paramount importance. From the selection of raw materials, it is necessary to carefully select the best quality, and the impurities must be removed to ensure the purity of the product. The preparation process, when in a rigorous order, has a fixed number of steps, the temperature and duration, and the difference is very small, but thousands of miles.
As for the identification, the product parameters need to be clear. Such as purity, it should reach a very high standard, and the impurity content and limit should also be detailed. The appearance color should be specific, so as to help people identify the quality. On the packaging, the logo should not be blurred, so that the user can see it at a glance and follow the specifications to obtain the best products to meet the needs of all parties.

Preparation Method

The method of disodium (Disodium 5, 5-Indigodisulphonate), the raw material is very important in the production process. The raw materials need to be carefully selected, such as indigo and suitable sulfonation. In the production process, the reverse step is controlled.
The first amount of indigo is taken, and it is placed in the reverse kettle. The sulfonation is added, and the control degree is reversed. At the beginning of the reverse process, it is raised to a specific level, so that the reverse process can be fully carried out, and the reverse process is engraved. Reverse process, cold process, sedimentation process, etc., to separate the product.
And the activation system should not be ignored. The appropriate catalytic process may accelerate the reverse process and improve the efficiency. And the operation of each step must follow the standard, so as to ensure the quality of the product. In this way, you can get the high-quality Disodium 5, 5-Indigodisulphonate.

Chemical Reactions & Modifications

One evening, I studied Disodium 5 in the room, 5-Indigodisulphonate this thing. Its transformation is subtle, the reaction is changeable, and it is related to the improvement of utility. I am worried about it.
In past experiments, the reaction was often difficult to control, or the rate was too diseased, or the product was impure. This is all because the conditions are not carefully observed, and the variables are not well controlled. If the temperature is high or low, the amount of agent, and there is a slight difference, the result will be different.
Now I want to change and improve its properties. Think about slowing the rise of temperature, and control the entry of the drug, observe its response. Also think about the addition of catalysts, or you can promote their transformation and increase their purity. I hope that all policies will be used in parallel to make the reaction smooth and excellent in quality. In this way, it will live up to the research and analysis of our generation, and I hope this product can have better effects and be beneficial to the world.

Synonyms & Product Names

"The same name and trade name of indigo disulphonate sodium"
There is now a thing called Disodium 5,5 - Indigodisulphonate. Its namesake also has many titles. Although the ancient books did not directly state this name, they may have similar names due to its chemical properties.
Looking at its trade name, it also varies according to time, place, and use. In the industry of printing and dyeing, or because of its ability to help color, it has a unique name, which is easy for craftsmen to identify and use. In medicine, or because of its efficacy, another name is given. Although the same name and the trade name refer to one thing, they have different titles, and they also reflect the special needs of various industries. The way of using things has its own wonders, and they all act for convenience. Therefore, the name of this chemical is different in different fields, giving rise to different titles, each with its own uses, and each with its own merits.

Safety & Operational Standards

Code of Safety and Operation of Sodium Indigo Disulphonate
Sodium indigo disulphonate (Disodium 5,5 - Indigodisulphonate), among chemical products, is widely used and must be used. To ensure its safe use, the standard of practice must specify its safety and operation specifications.
The storage of this product should be placed in a cool and dry place, protected from heat and humidity. Cover heat and humidity, or cause their qualitative change, damage their performance, and even life insurance. And should be kept away from fire and heat sources to prevent fire.
When operating, the operator should be careful. Wear suitable protective equipment, such as gloves and goggles. Gloves to prevent touching their skin, goggles to protect the eyes from damage. And it is operated in a well-ventilated and well-ventilated place, so that the air can dissipate and avoid gathering and harming the body.
If there is a leak, it should be cleared quickly. If you sprinkle a small amount, you can use sand, soil, etc. to cover and sweep; if you sprinkle a large amount, you need to take care of it to prevent pollution.
After use, the utensils will be cleaned. If you rinse it with water, you must leave nothing behind, so that the residue will not change.
Furthermore, the operator must be familiar with its nature. Know how it should be with other things, and anticipate its danger. If there is accidental touch or accidental suction, you can save it quickly. If you touch the skin, rinse it with water, and if you suck it, move it to a clear place. If it is serious, seek medical attention.
All these Operators follow it to ensure that things are smooth and safe, harmless to people, without damaging things, to protect the environment and promote the prosperity of the industry.

Application Area

"Application of Sodium Indigo Disulphonate"
Today there is a product called "Disodium 5,5 - Indigodisulphonate", that is, sodium indigo disulphonate. This product is widely used. In the dyeing and weaving industry, it can be used as a dye. Its color is bright and long-lasting, and it dyes fabrics with a brilliant color, adding a lot of color to fabrics. In the field of chemical analysis, it also has important uses. Because of its special chemical properties, it can produce specific reactions with many substances, so it can be used to detect and identify certain chemical substances, helping chemists to understand the characteristics and compositions of substances. In water quality monitoring, sodium indigo disulphonate also contributes. Through its reaction with specific components in water, it can help monitors understand the water quality and ensure the safety of water use. All these applications demonstrate their significant value and play a crucial role in various fields.

Research & Development

In the field of chemical industry, there is a thing called Disodium 5, 5-Indigodisulphonate. I have devoted myself to studying it and exploring its mysteries. This material is very different and has a wide range of uses.
At first, I investigated its chemical structure to understand the wonder of its bonding, and explored the order of atomic arrangement in order to understand its essence. Then, I studied the method of its experiment, controlling the temperature and humidity, adjusting the amount of reactants, and observing the change of its reaction, in order to obtain the best system.
The process of research is also difficult. Or the reaction is not as expected, or the product is not pure. However, I am not discouraged, and I have tried repeatedly to improve the method.
Today, this substance has made progress. Applied to the printing and dyeing industry, the color is bright and lasting; used in the path of scientific research, to help the essence of analysis. I hope that in the future, I can explore its potential more, use it widely, and benefit everyone. On the road of chemical development, add bricks and tiles and promote its prosperity.

Toxicity Research

Today's research and analysis of a substance, called Disodium 5, 5-Indigodisulphonate. In the way of toxicological investigation, it is impossible to ignore. The toxicity of this substance is related to the health of living beings and the safety of the environment.
Examine its properties in detail, or it is affected orally, percutaneously, or inhaled. If it enters the body through the mouth, the viscera may be harmed by it, and the stomach may be transported or disrupted. If it comes into contact with the skin, the skin may feel discomfort, itching, redness and swelling are unknown. As for inhalation, the position of the lungs and organs may be damaged, and the breathing may be blocked.
And looking at its impact on the environment, water and soil may be contaminated. Aquatic creatures, or because of the death, ecological balance, or be broken. Therefore, the toxicity of this thing, should be deeply explored, detailed examination of its harm, as a preventive policy, to protect the living in safety, to protect the environment.

Future Prospects

In today's world, science and technology are advancing day by day, and chemical materials have also been greatly developed. Disodium 5,5 - Indigodisulphonate This material has extraordinary potential, and its prospects for the future can be said to be great.
Looking at this material, its properties are unique, and it may be able to develop its talents in many fields. In industry, it may be able to optimize the process, improve the quality, and increase the efficiency of production; in scientific research, it may be a key agent to help explore the unknown and solve scientific problems.
Chemical researchers of our generation should study its properties and explore its capabilities with diligence. With unremitting efforts, Disodium 5,5 - Indigodisulphonate will shine brightly in the future, be used by the world, benefit all living beings, and achieve unfinished business. This is our eagerness for the future.

Where to Buy Disodium 5,5-Indigodisulphonate in China?

As a trusted Disodium 5,5-Indigodisulphonate manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.

Frequently Asked Questions

As a leading Disodium 5,5-Indigodisulphonate supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What are the main uses of Disodium 5, 5-Indigodisulphonate?

Disodium 5,5-indigo disulfonate, or indigo carmine, has a wide range of uses. In dyeing, it can add a bright color to fabrics and paper, making it colorful and enhancing the appearance of items. In the food industry, it is used as a food coloring, adding colorful food to lure appetite and increase interest. In the field of chemical analysis, it is also very useful. Because it can change in different colors when it encounters different chemicals, it is often used as an acid-base indicator. When it encounters acid, it shows one color, and when it encounters alkali, it shows a different color. This property helps chemists accurately determine the acidity and alkalinity of solutions, and is of great significance in analytical chemistry experiments and production practices. And in the field of medicine, it is also occasionally used to assist in the diagnosis of certain diseases. By means of its distribution and color changes in the body, it can provide medical practitioners with diagnostic clues. In short, although disodium 5,5-indigo disulfonate is a tiny thing, it is indispensable in many industries.

Disodium 5, what are the physical properties of 5-Indigodisulphonate

Disodium 5,5-indigo disulfonate, also known as indigo carmine, is a common chemical substance. It has the following physical properties:
From the perspective of this substance, it is in the form of a blue powder. Under sunlight, its color is bright, like the color of the sky, and its delicate state shows its purity. When placed in an ordinary environment, it is very stable and can maintain its inherent form and characteristics for a long time.
When it comes to solubility, it is quite easy to dissolve in water. Pour a little in water, stir it for a while, and it will quickly blend with the water, making the water a clear blue, just like a pool reflecting the sky. However, in common organic solvents, such as ethanol and ether, its solubility is very small, only a very small part can be dissolved, and most of them are still in the solid state, which is clearly recognizable.
Its melting point is quite high, and it needs to reach about 390 ° C before it can melt from solid to liquid. During the heating process, the initial morphology remains unchanged, and with the gradual rise of temperature, it begins to soften, and finally turns into a flowing liquid. This high melting point characteristic makes it capable of maintaining a solid state and not easy to deform under normal high temperature environments.
In terms of density, it is about 1.02 g/cm ³, which is similar to the density of water. Place it in water, or suspend it, or settle slowly, depending on the fineness of the particles. This density characteristic has a great impact on many practical applications, and it is related to its distribution and behavior in different media.
In addition, this substance has certain hygroscopicity. In a high humidity environment, it can absorb water vapor in the air, causing its own weight to increase and the powder to gradually become humid. Therefore, when storing, pay attention to the ambient humidity to prevent it from deteriorating due to moisture absorption.

Disodium 5, what are the chemical properties of 5-Indigodisulphonate?

The chemical properties of 5,5-indigo disulfonate can be studied. This compound is also colorful and can be used for dyeing. Its color is fresh and bright, and it is widely used in the dyeing industry.
Looking at its chemical properties, it is salt-like. Because it contains sodium, it is soluble in water, soluble and ionized, generating ions, which makes it have chemical properties in solution. Its structure contains the base of indigo and the part of sulfonate, which makes it unique.
It has a certain stability, but it can also change its structure and properties in case of strong acid, alkali, or high temperature. In the context of oxidation and reduction, or participate in the reaction, because the groups in its structure can interact with the oxidative reducing agent.
In water, ions are generated by ionization, so it has electrical conductivity. And because of its sulfonate genus, it can combine with other ions to produce new compounds.
And the solubility of this substance varies according to water temperature. If the temperature is high, the solubility may increase. It also has different properties in different solvents, and its solubility in polar solvents is better than that in non-polar solvents.
This disodium 5,5-indigo disulfonate, with its chemical diversity, is the basis for its use in various fields of industry and scientific research. If its properties are well understood, it can be widely used and beneficial to the world.

Disodium 5, what is the production method of 5-Indigodisulphonate?

The method of making disodium penta- and indigo disulfonates is made by several processes.
First take indigo, which is the key starting material. The indigo is placed in a specific reactor and mixed with an appropriate amount of concentrated sulfuric acid. This process requires careful temperature control and slow heating to a certain extent, about 100 to 120 degrees Celsius, so that the indigo and sulfuric acid can fully react to make it sulfonated. This reaction is designed to connect the indigo molecule to the sulfonyl group, paving the way for subsequent salt formation.
After the sulfonation reaction is completed, the sulfonated product is obtained. It is slowly poured into a large amount of ice water, diluted and quenched, and precipitated. This precipitation is the indigo derivative containing the sulfonyl group. After filtration, the precipitate is separated from the liquid, the precipitate is collected, and washed several times with an appropriate amount of water to remove impurities and obtain pure sulfonated indigo.
Take the washed sulfonated indigo, place it in another reaction vessel, and add an appropriate amount of sodium hydroxide solution. Sodium hydroxide reacts with the sulfonated indigo group to form a sodium salt. This reaction needs to be adjusted to an appropriate pH value, about 8 to 9, to ensure complete reaction. After the reaction is completed, the solution is evaporated and concentrated, so that the water is gradually lost. When the solution reaches a certain concentration, it is cooled and crystallized, and the crystals of disodium penta- and five-indigo disulfonate can be seen precipitating.
Then centrifuged to separate the crystals from the mother liquor. The obtained crystals are dried at low temperature to remove the moisture content, and finally a pure white or off-white disodium penta, penta-indigo disulfonate product is obtained. The whole preparation process requires precise control of temperature, pH and each step to obtain high-quality products.

Disodium 5, 5-Indigodisulphonate what are the precautions in use

Disodium 5,5-indigo disulfonate, that is, methylene blue, has many points to pay attention to when using, and must not be ignored.
First, it is related to the dosage. Excessive use, or cause many adverse effects. For example, in the field of medical inspection, excessive use, or make the test results deviate from the truth, mislead the doctor's judgment, and delay the diagnosis and treatment of patients. In the dyeing process, excessive color is too dark, resulting in uneven color and damage to the appearance of the product. Therefore, before use, the dosage must be accurately calculated according to specific needs and established standards to achieve the best results.
Second, pay attention to the dissolution process. The dissolution status of this substance is related to its effectiveness. If the solution is not completely dissolved, there are particles in the solution, which not only affects the uniformity, but also causes the local concentration to be too high and causes adverse reactions. Therefore, when dissolving, choose a suitable solvent, and according to its characteristics, heat or stir to promote its full dissolution.
Third, pay attention to its interaction with other substances. Methylene blue is chemically active and easy to react with many substances. In practical application scenarios, if it is mixed with some specific chemical reagents, or a chemical reaction occurs, causing it to fail or even generate harmful substances. Therefore, the properties of the substances in contact with it must be clarified before use to avoid adverse reactions.
Fourth, storage conditions are also key. It should be placed in a dry, cool and dark place. If the storage environment is humid, it is easy to cause it to get damp and agglomerate, which affects the use. Excessive light exposure, or lead to luminescent chemical reactions, cause it to deteriorate. Proper storage can ensure its quality and performance stability, ready for use at any time.