Sodium-3-Hydroxy-4- (2-Hydroxynaphthalenylazo) What are the application fields of Naphthalenesulphonate, Chromium Salt
Sodium - 3 - Hydroxy - 4 - (2 - Hydroxynaphthalenylazo) Naphthalenesulphonate, Chromium Salt, that is, chrome salt type acidic medium jujube red BN, this material is widely used.
In the printing and dyeing industry, it is an important member of the dye. It can be used for dyeing natural fiber fabrics such as wool and silk. Viewed from the ancient method of printing and dyeing, the dyer needs to use it to dye plain fabrics with jujube red color, bright color and good light resistance and washing fastness. This is like the traditional printing and dyeing method recorded in ancient books, which uses various dyes to give fabrics color, but this chrome salt dye is better than the ancient natural dyes in terms of color fastness.
In the leather industry, it is also used. It can be used for leather dyeing, so that the leather has the desired jujube red color, and enhances the leather's friction resistance, water resistance and other properties. Just as in ancient times, craftsmen treated leather with special materials to make it durable, this dye also achieves similar effects in leather treatment.
In addition, in some art painting fields, if a specific jujube pigment is required, this substance can be properly treated or used as one of the pigment components to add color to the painting, just like the ancient people used pigments to depict mountains and rivers, and now it is also used to add color.
Sodium-3-Hydroxy-4- (2-Hydroxynaphthalenylazo) What is the impact of Naphthalenesulphonate, Chromium Salt on the environment?
Sodium-3-hydroxy-4- (2-hydroxy-naphthalenyl-azo) naphthalenesulfonate, a chromium salt, needs to be studied in detail for its impact on the environment.
This substance has a special chemical structure and contains azo and chromium components. The azo structure is derived from many complex products in the natural environment or through degradation and other processes. When some azo compounds are degraded, aromatic amines may be formed. Many of these substances are potentially toxic and can accumulate through the food chain, endangering organisms at all levels of the ecosystem. For example, it may affect the growth and reproduction of aquatic organisms, causing deformities in fish development and reduced fertility.
Furthermore, chromium cannot be ignored. Chromium exists in various forms in the environment, and its toxicity varies greatly with different valence states. After chromium in this salt enters the environment, it may change the chemical properties of soil and water. In soil, it may affect the structure and function of soil microbial community, inhibit the absorption of nutrients by crops, and cause crop yield to decrease. In water, high concentrations of chromium ions may cause water quality deterioration, endanger the survival of aquatic organisms, and enter the human body through drinking water, damaging human organs, such as liver, kidneys, etc.
In summary, sodium-3-hydroxy-4- (2-hydroxy-naphthalene-azo) naphthalene sulfonate and chromium salts have a wide and complex impact on the environment, from individual organisms in the ecosystem to the entire community, are subject to its potential threats, and it is necessary to treat it with caution and strengthen monitoring and control to reduce its harm to the environment.
How to prepare Sodium-3-Hydroxy-4- (2-Hydroxynaphthalenesulphonate, Chromium Salt
The method of preparing sodium-3-hydroxy-4- (2-hydroxy naphthalene sulfonate) chromium salts requires the preparation of corresponding materials and follows certain steps and procedures.
First, choose pure raw materials, such as hydroxy naphthalene sulfonate substances, and an appropriate amount of chromium source to ensure its purity. The quality of the raw materials is related to the quality of the finished product and must not be ignored.
Next, place the selected raw materials in a suitable reaction vessel according to a certain proportion. This ratio needs to be accurately measured, or based on past experience, or based on careful calculation, so that the proportion of each substance is appropriate. In the container, slowly add an appropriate amount of solvent to allow the raw materials to be evenly dispersed and fully contacted, which is conducive to the progress of the reaction.
Then, heat the reaction system. The speed of heating and the degree of temperature are all exquisite. Or slowly raise the temperature to a specific temperature and keep it at this temperature for a period of time to facilitate the completion of the reaction. When heating, it is also necessary to stir moderately to make the reaction rate of all parts of the system uniform.
After the reaction is completed, wait for the system to cool down, or according to the properties of the product and impurities, choose suitable separation methods, such as filtration, centrifugation, etc., to remove impurities in the system to obtain pure sodium-3-hydroxy-4- (2-hydroxy naphthalene sulfonate) chromium salt. Or further refining, such as recrystallization, is required to raise the purity of the product again.
When preparing, each step needs to be carefully handled, paying attention to temperature, ratio, time and other factors, in order to obtain high-quality sodium-3-hydroxy-4- (2-hydroxy naphthalene sulfonate) chromium salt.
What are the physical and chemical properties of Sodium-3-Hydroxy-4- (2-Hydroxynaphthalenylazo) Naphthalenesulphonate, Chromium Salt
This is called "3-hydroxy-4- (2-hydroxy naphthyl azo) sodium naphthalenesulfonate chromium salt". Its physical and chemical properties are quite important, related to its use and characteristics.
When it comes to physical properties, this substance may have a specific color. Because of the azo group and naphthalene ring structure, it is often bright in color, or orange, red, etc., and is widely used in the field of dyes. Because of its bright color, it can cause outstanding dyeing effect. Its state may be solid, mostly in powder form, which is convenient for storage and transportation, and the powder form is conducive to dispersion in solvents or other media, and can play a more uniform role in application.
As for chemical properties, due to the presence of hydroxyl groups and sodium sulfonate groups, it has a certain hydrophilicity. Hydroxyl groups can participate in a variety of chemical reactions, such as esterification reactions, and can react with acids to form ester compounds, whereby they can be chemically modified to meet different application needs. Sodium sulfonate groups make the substance water-soluble and can be well dispersed in water, which is crucial for textile printing and dyeing processes that require operation in aqueous solutions. At the same time, as chromium salts, the presence of chromium ions gives it unique chemical activity and stability. Chromium ions can participate in complexation reactions and form stable complexes with other ligands, which in turn affect the overall chemical properties and application properties of the substance.
In addition, the presence of the azo structure in the substance makes it sensitive to external conditions such as light and heat. When illuminated or heated, the azo bond may break or isomerize, causing the color and chemical structure of the substance to change. This property may show unique functions in the application of some photochromic materials or heat-sensitive materials.
Sodium-3-Hydroxy-4- (2-Hydroxynaphthalenylazo) What is the price range of Naphthalenesulphonate, Chromium Salt in the market?
Sodium-3-hydroxy-4- (2-hydroxy-naphthyl-azo) naphthalene sulfonate chromium salt, what is the price of this product in the market? This is an answer to the ancient saying of "Tiangong Kaiwu".
The price of sodium-3-hydroxy-4- (2-hydroxy-naphthalene-azo) naphthalene sulfonate chromium salt in the market is difficult to determine. The rule covering its price depends on various reasons. First, its quality is the key. Those who are of high quality have fine workmanship, pure but less miscellaneous, and the price must be high; those who are of poor quality, miscellaneous but impure, and the workmanship is also crude, and the price is low.
Furthermore, the trend of supply and demand determines its price. If there are many people in the market who want it, but the supply is small, the so-called rare is expensive, and the price will rise; if there is an oversupply, merchants want to sell their goods quickly, and the price must drop to promote the market.
Also, the cost of the system is also the main reason. To make this thing, materials and workmanship are required. If the materials are expensive and the workmanship is complex, the cost will be high, and the price will increase accordingly; if the materials are cheap and simple, the cost will decrease, and the price will also decrease.
However, at this time, there is no conclusive price to follow. According to common sense, those with high quality and refinement can be obtained per catty or to tens of gold; and those with average quality can also be obtained per catty or more than ten gold. However, this is only the number of ideas. The market conditions are ever-changing, and the current price shall prevail. Merchants enter the market and ask for the price to obtain the exact number.