What is the main use of Ammonium Bifluoride (powder)?

Ammonium (Ammonium) and ammonium hydrogen fluoride (Ammonium Bifluoride powder, powder form) are widely used.

First, in the field of metallurgy, it can be used as a metal surface treatment agent. It can remove oxides and impurities on the metal surface, make the metal surface clean, and lay a good foundation for subsequent electroplating, coating and other processes. For example, when treating the surface of copper, treating it with ammonium hydrogen fluoride solution can make the surface of the copper smooth and flat, improve the adhesion of subsequent coatings, and make the copper more beautiful and durable.

Second, in chemical production, it is often used as an analytical reagent. Due to its special chemical properties, it can be used to determine the content and composition of certain substances. When analyzing the composition of ore, ammonium hydrogen fluoride can be used to react with specific components in the ore, and the content of various elements in the ore can be determined by relevant detection methods, which can help the selection and ratio of raw materials in chemical production.

Third, it plays a key role in the glass etching process. Ammonium hydrogen fluoride can react with silica in the glass, thereby achieving the etching of the glass surface and creating exquisite patterns and patterns. When making art glass products, craftsmen use ammonium hydrogen fluoride solution to coat specific parts of the glass. After a certain period of reaction, the desired etching effect can be obtained, adding the artistic value of the glass products.

Fourth, it is also used in agriculture. Adding appropriate amounts to some fertilizers can supplement nitrogen and fluorine elements for plants. Nitrogen is an essential element for plant growth, which promotes the flourishing of plant branches and leaves; although a small amount of fluorine is required, an appropriate amount of fluorine also has a positive effect on plant growth and development, which can enhance plant stress resistance.

In addition, in wood preservative treatment, ammonium hydrogen fluoride solution can be injected into wood to inhibit the growth of microorganisms in wood, prolong the service life of wood, and make wood more durable in construction, furniture manufacturing and other fields.

What are the storage conditions for Ammonium Bifluoride (powder)?

Ammonium hydrogen fluoride (powder), its storage conditions are related to its properties and safety, and cannot be ignored.

This agent is active and changeable in case of moisture. Therefore, it should be stored in a dry place. If it is in a wet environment, it is easy to deliquescent, causing its quality and efficiency to change. The place of the warehouse should be well ventilated to avoid its accumulation of heat and moisture. And it should not be near water and fire, because it is heated or exposed to open flames, it may be dangerous.

It needs to be stored alone, and it should not be mixed with alkalis, metal powders, etc. When alkali meets ammonium hydrogen fluoride, it will cause chemical changes and damage its quality. Metal powder can also promote its reaction, or cause accidents. < Br >
For storage, corrosion-resistant materials should be used. Glass, plastic, etc., can be selected for them to prevent their erosion and leakage. And the device must be strictly sealed to prevent moisture and air.

When handling, also be cautious. Operators should wear protective gear to avoid touching its powder, hurting the skin, and harming breathing. If it falls on the ground, it should be quickly removed, preventing the environment from fouling and endangering people and animals.

In this way, according to the requirements of dryness, ventilation, isolation, strict sealing, and careful transportation, ammonium hydrogen fluoride (powder) can be stored safely, so that its performance is not lost, and it can be used without worry.

Ammonium Bifluoride (powder) safety precautions during use

Ammonium (ammonium) and ammonium hydrogen fluoride (Ammonium Bifluoride powder) are commonly used in chemical industry, but their properties are dangerous. They must be used with caution. Remember the following precautions:

First, it is related to personal protection. Ammonium hydrogen fluoride is highly corrosive and can cause burns to the skin and mucous membranes. Therefore, when using it, be sure to wear comprehensive protective equipment. If you use thick protective clothing to protect the body, this clothing needs to be resistant to chemical corrosion and can prevent ammonium hydrogen fluoride from eroding the skin; with anti-chemical gloves, the material is tough and can resist its corrosive power; wear a protective mask or goggles, its light transmission is clear and impact-resistant, acid and alkali-resistant, so that your eyes are protected from damage; prepare a gas mask, in a poorly ventilated place, it can filter out harmful gases and keep breathing smooth.

Second, environmental safety is also a priority. These two should be stored in a cool, dry and well-ventilated place. Keep away from fire and heat sources, because they may decompose when heated, releasing harmful gases. Store separately from alkalis, acids, etc. to prevent violent reactions. The place of use should have good ventilation equipment to discharge volatile gases in time to reduce the concentration of harmful substances in the air. After the operation is completed, the site should be fully cleaned to prevent residual hazards.

Third, the use specifications cannot be ignored. Read the manual and safety technical data carefully before use to understand the characteristics and emergency treatment methods. When taking it, measure it accurately as needed to avoid waste and residue. If you accidentally touch the skin, rinse with a large amount of flowing water quickly, at least 15 minutes, and then seek medical treatment; enter the eyes, immediately open the eyelids and rinse, also at least 15 minutes, and then rush to the hospital. If inhaling, leave the scene quickly to a fresh air place, and give oxygen for breathing difficulties. If you stop breathing, you must immediately apply cardiopulmonary resuscitation and seek medical attention.

Fourth, the transportation and storage are subject to regulations. The transportation is in accordance with the requirements of hazardous chemicals to ensure that the container is stable, does not leak, does not collapse, and does not fall. Storage is classified and stored, strictly managed, and regularly inspected to prevent deterioration and leakage.

Ammonium Bifluoride (powder) production process is how

The production process of ammonium fluorohydrogen (powdered) is a matter of great importance to the chemical industry. The method is roughly as follows:

Prepare the required raw materials first, hydrofluoric acid and liquid ammonia are the key things. Hydrofluoric acid is placed in a special reactor, which needs to be corrosion-resistant and temperature-controlled. Slowly inject liquid ammonia, and in this process, the temperature and pressure of the reaction need to be strictly monitored. Because of its reaction exothermic, if the temperature control is not appropriate, accidents may occur.

During the reaction, liquid ammonia and hydrofluoric acid combine in a specific ratio. This ratio needs to be precisely controlled to obtain high-quality ammonium fluorohydrogen products. When the two combine, the following reaction occurs: $NH_ {3} + 2HF = NH_ {4} HF_ {2} $.

After the reaction is completed, the product may be in a liquid state, and it needs to be evaporated and concentrated. By heating, the excess water is evaporated, so that the concentration of ammonium fluorohydrogen gradually increases. In this step, pay attention to the intensity of heating, and do not decompose the product.

To be concentrated to a certain extent, cool down and crystallize. The appropriate cooling rate and temperature range have a great impact on the morphology and purity of the crystal. After cooling, ammonium fluorohydrogen precipitates as a crystal.

Then, the crystal and the mother liquor are separated by filtration. The crystal is the required ammonium fluorohydrogen powder, but it may contain some impurities at this time.

To obtain high-purity ammonium fluorohydrogen powder, the method of recrystallization is often used. The newly obtained crystal is re-dissolved and recrystallized to remove impurities. Finally, the refined crystal is dried to remove the residual moisture and finally obtain the ammonium fluorohydrogen powder product. The whole process, each step is closely connected, and the control of conditions is very strict, so that qualified products can be prepared.

What is the market price range of Ammonium Bifluoride (powder)?

For ammonium hydrogen fluoride (powder), it is difficult to determine the market price range. Market prices often change due to various reasons, and cannot be generalized.

First, the purity of its quality is greatly related. If the quality is pure, the price may be slightly higher; if the quality is miscellaneous, the price may drop. The ancient gold and jade, the price of pure is high, and the price of miscellaneous is reduced by other things.

Second, the region of production and the situation of supply and demand are also the main factors. If the origin is close and the supply exceeds the demand, the price may be flat; if the product is far away and there are many people seeking it, the price will be higher. The ancient cloud "what is rare is expensive", the supply is less and the demand is more, and the price will rise; if the product is abundant, the supply is more than enough, and the price should be reduced.

Third, the competition in the city can also move its price. The merchants compete to sell, either for profit or to expand the market, must use the price as a means of contention. If there are many competitors in the market, the price may be reduced because of it; if there are few competitors, the price may be stable but difficult to drop.

Fourth, the time is different, and the price is also different. When the year is abundant, the need for urgency can make the price rise and fall. Like the grain valley of ancient times, the price is flat at the age of abundance, and the price at the age of apology is high.

In the market today, the price of ammonium hydrogen fluoride (powder) ranges from tens of yuan to hundreds of yuan per kilogram. However, this is only an approximate number. The actual price must be carefully asked by the merchants in the market, and the quality and situation can be determined.