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Sodium bifluoride, Technical (Bulk) What are the main application fields
The style of "Tiangong Kaiwu" is simple and elegant, and today I will answer your questions with similar words.
Sodium bifluoride, Technical (Bulk), its use is quite wide. In the field of metallurgy, it is often used as a melting agent. It can reduce the melting point of ores, promote the separation of metals and gangue, and make the metallurgical industry smooth. In the electroplating industry, it can optimize the coating, make the metal surface smooth and uniform, and increase its corrosion resistance and wear resistance.
In chemical synthesis, it is also an important raw material. It helps the reaction of organic synthesis, catalyzes many chemical changes, and expands the way of material transformation. And in the world of wood protection, it has the effect of insect prevention and anti-corrosion. It can penetrate into the wood body, prevent insect erosion and the growth of fungi, and prolong the service life of wood.
In the glass manufacturing industry, it can adjust the properties of the glass. Help the glass to clarify, remove bubbles and impurities, make the glass transparent and pure; It can also change the thermal properties of the glass and increase its heat resistance and cold resistance. In agriculture, it can be used in moderation as a trace element fertilizer to supplement soil fluoride and promote crop growth. However, its properties are toxic, so use it with caution and operate according to specifications to prevent harm.
Sodium bifluoride, Technical (Bulk) Quality Standards
"Tiangong Kaiwu" was written in the Ming Dynasty. At that time, the chemical discipline had not yet been systematically developed, and there was no relevant quality standard record for chemicals such as "Technical Sodium Bifluoride (Bulk) " (industrial grade sodium hydrogen fluoride (bulk)). However, according to the method of modern chemical industry, the Quality Standard of industrial grade sodium hydrogen fluoride is quite critical. First, in terms of content, the content of the main component of sodium hydrogen fluoride is mostly required to reach a certain proportion, usually not less than 98%, which is related to product purity and application efficiency. Second, the impurity index, chloride content often needs to be strictly controlled, generally not more than 0.05%, because it may affect product performance and subsequent reactions; sulfate content is also standard, usually not more than 0.05%. Third, the appearance properties should normally be white crystalline powder, uniform without agglomeration, to ensure good fluidity and dispersion, which is conducive to use in industrial processes. Fourth, the moisture content should be kept at a low level, generally not more than 0.5%. Excessive moisture may cause product deliquescence, affecting stability and quality. Such various Quality Standards are designed to ensure that industrial-grade sodium hydrogen fluoride can play its due role in various industrial fields such as aluminum electrolysis, metal surface treatment, etc., to ensure smooth production processes and reliable product quality.
Sodium bifluoride, Technical (Bulk) What is the price range?
Sodium bifluoride, Technical (Bulk), that is, industrial grade sodium hydrogen fluoride (bulk) is also. Its price range is difficult to determine, because of the interaction of many factors.
First, the supply and demand of the city is due to the need. If there are many people who need it and there are few suppliers, the price will rise; conversely, if the supply exceeds the demand, the price may drop. Second, the price of raw materials also has a great impact. The production of sodium hydrogen fluoride requires specific raw materials, and the fluctuation of its price is directly related to the cost of sodium hydrogen fluoride, which in turn affects the selling price. Third, the origin is far and near, and the transportation cost cannot be ignored. If it is far away, the cost will be high, and the price will follow; if it is near, the cost will be saved, and the price may be slightly lower. Fourth, the stability of the current situation and the increase or decrease of taxes are all related to the price.
Looking at the city of the past, the price of industrial-grade sodium hydrogen fluoride (bulk) fluctuated between hundreds and thousands of yuan per ton. However, this is only a rough figure, and it is not an exact value. If you want to know the current accurate price, you must carefully observe it in the market and consult manufacturers and traders before you can be sure.
Sodium bifluoride, Technical (Bulk) storage conditions
Sodium difluoride, industrial grade (bulk), its storage conditions are quite important. This substance should be stored in a cool, dry and well-ventilated place.
A cool place can avoid the disturbance of high temperature. If it is in a high temperature environment, this agent or biochemical changes will damage its quality. The temperature should be controlled within a specific range to prevent it from being decomposed by heat or reacting with surrounding substances.
A dry place is also necessary. Because of its certain chemical activity, it is easy to deliquescence or hydrolysis in contact with water or humid air. Therefore, a dry place should be selected, and the container must be well sealed to prevent the intrusion of external water vapor.
Good ventilation is also indispensable. If stored in a closed and poorly ventilated place, the volatile gas or accumulation will not only pose a safety risk, but also affect the surrounding environment and human health.
Furthermore, when storing this product, it should be isolated from other chemicals. The chemical properties of sodium difluoride make it or react with other substances, causing danger. Such as oxidizing or reducing substances, do not coexist with it.
Storage containers should also be carefully selected. When using corrosion-resistant materials, such as specific plastic or metal materials, to prevent it from reacting with the container, to ensure the purity and stability of the substance.
During handling and storage, handle it with care to avoid material leakage caused by damage to the container. Once it leaks, it may pollute the environment, or endanger the safety of personnel. In short, storage under these conditions can ensure the quality and safety of sodium difluoride.
Sodium bifluoride, Technical (Bulk) production process is how
Sodium bifluoride (Sodium bifluoride) is a major technical user, and its technical skills are quite complicated.
At the beginning, hydrofluoric acid and sodium carbonate were mostly used. First take an appropriate amount of hydrofluoric acid, put it in a corrosion-resistant device, and slowly add sodium carbonate. In the meantime, you must pay attention to the reaction. The two are in contact, that is, biochemical changes, and bubbles escape. This is carbon dioxide. The reaction formula is as follows: 2HF + Na _ 2 CO 🥰 → 2NaF + CO _ 2 ↑ + H _ 2 O. However, only sodium fluoride is obtained, not sodium difluoride.
To form sodium difluoride, you need to add an appropriate amount of hydrofluoric acid to the solution of sodium fluoride. The amount of hydrofluoric acid is related to the purity of the product. After the two are combined, sodium fluoride and hydrofluoric acid are combined to obtain sodium difluoride. The corresponding formula is: NaF + HF → NaHF ³.
After the reaction is completed, the liquid of the product still contains impurities. It must be purified, and the technique of recrystallization is commonly used. Heat and concentrate the liquid until it is nearly saturated, and cool it slowly. At this time, sodium difluoride precipitates out in the form of crystals, and impurities remain in the mother liquor. Filter the crystals and dry them at low temperature without decomposing them by heat. Finally, pure sodium difluoride can be obtained, which can be used in industry.
The whole process requires strict requirements for the corrosion resistance of appliances, temperature control, and the ratio of raw materials. A slight difference affects the quality and quantity of the product.