Rare gases have such a wide range of applications

Rare gases are a general term for gases such as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). In the past, people believed that these gases did not react with other substances, so they were also called "inert gases."In fact, although these gases do not account for a high proportion in the air, they are indispensable in our modern life. In this issue, Jiayuan will talk about their common uses.1.As protective gasBecause the chemical properties of rare gases are very inactive, argon is often used as a shielding gas to isolate the air when welding precision parts or active metals (such as magnesium and aluminum) to prevent the metal from reacting with other substances at high temperatures.Iridium, the nuclear fuel of nuclear reactors, which oxidizes rapidly in the air, also needs to be machined under the protection of argon.In order to extend the service life of the light bulb, adding argon gas into the light bulb can reduce the evaporation of the tungsten filament and prevent the tungsten filament from oxidation.2. As an electric light sourceRare gases emit light of different colors when electricity is applied. The world's first neon light was made of neon. The red light emitted by neon has strong transmittance in the air and can pass through thick fog. Therefore, neon lights are often used as beacons in airports, ports, and water and land transportation routes. Argon or helium is filled into the tube, which emits light of light blue or light red when electricity is applied. Filling a mixture of helium, neon, and argon with different contents into the tube can make colorful neon lights.The commonly used fluorescent lamp is made by filling a small amount of mercury and argon gas in the lamp tube and applying fluorescent material (such as calcium halophosphate) on the inner wall. When the power is turned on, the discharge of mercury vapor generates ultraviolet rays in the tube, which stimulates the fluorescent material to emit visible light similar to sunlight, so it is also called a fluorescent lamp.When powered on, a high-voltage long-arc lamp filled with xenon can emit strong light that is tens of thousands times stronger than a fluorescent lamp. Therefore, it is called an "artificial little sun" and can be used for squares, stadiums, airports and other lighting. Neon lights, krypton gas, and xenon gas can also be used in laser technology.3. Medical treatment   Xenon lamps have high ultraviolet radiation and are used in medical technology. Xenon gas dissolves in cell oil, causing cell anesthesia and swelling, thereby temporarily stopping the action of nerve endings and achieving anesthesia. As an anesthetic without side effects, people have tried a mixture of 80% xenon and 20% oxygen.Isotopes of krypton and xenon are also used to measure cerebral blood flow, etc.4. Making Artificial AirHelium and oxygen are mixed into artificial air, which divers can breathe. Because in the deep sea with greater pressure, if you breathe with ordinary air, more nitrogen will be dissolved in the blood. When the diver rises from the deep sea and gradually restores the normal pressure in the body, the nitrogen dissolved in the blood should be released to form bubbles, blocking the microvessels and causing "gas stasis". The solubility of helium in the blood is much lower than that of nitrogen. If the above phenomenon does not occur, but the ordinary air is replaced by a mixture of helium and oxygen (artificial air). 5. InflationHelium is the lightest gas besides hydrogen. Hydrogen is flammable and explosive, while helium is a colorless, odorless, inert gas. It is chemically inactive. Generally speaking, it is difficult to react with other substances. Helium has been used to fill balloons and airships instead of hydrogen. 6. Can produce a variety of mixed gas lasersHelium-neon laser is one of them. Helium-neon mixed gas is sealed in a special quartz tube. Under the encouragement of an external high-frequency oscillator, inelastic collisions occur between atoms of the mixed gas, and energy transfer occurs between the stimulated atoms, resulting in electronic transitions and emitting stimulated radiation waves and near-infrared light corresponding to the transitions. Helium-neon lasers can be used for measurement and communication.7. Low temperatureThe boiling point of liquid helium is -269℃, which is the most difficult to liquefy of all gases. Using liquid helium, ultra-low temperatures close to absolute zero (-273.15℃) can be achieved. Liquid helium is an ordinary liquid with the properties of ordinary liquids. Liquid helium below 2.2 thousand is a superfluid with many abnormal properties. For example, it has superconductivity and low viscosity. Its viscosity is 1% of the viscosity of hydrogen. Liquid helium can flow upward along the inner wall of the container and then slowly flow along the outer wall of the container. This phenomenon is of great significance to the research and verification of quantum theory. In today's era of rapid technological development, rare gases have been widely used in many fields due to their unique and excellent properties. Whether in the lighting industry, they provide us with bright and energy-saving light sources; or in the electronic chip manufacturing process, they serve as key protective gases and etching gases to help produce high-precision chips; or in the medical field, they play an indispensable role in specific diagnostic and treatment methods; and in high-end technological frontiers such as aerospace, they provide guarantees for the stable operation of various precision instruments and equipment. Rare gases are everywhere, and their value is immeasurable. If you are eager to learn more about rare gas products and accurately grasp their application trends, you are sincerely welcome to come to our company for a detailed discussion . Our company has a professional team and rich industry experience, and can provide you with comprehensive and detailed rare gas products .

Magnesium fluoride coating: multi-field applications and excellent performance

The main purpose of coating is to reduce reflections and to improve the transmittance of the lens and the quality of the image. In modern lens manufacturing processes, the lens must be coated. Lens coating is based on the principle of optical interference. A layer of substance (usually fluoride) with a thickness of one-quarter wavelength is coated on the surface of the lens to minimize the reflection of the lens to the color light of this wavelength. One layer of film only works on one color light, while multi-layer coating can work on multiple colors of light. Multi-layer coating usually uses different materials to repeatedly coat different thicknesses of film layers on the surface of the lens. Multi-layer coating can greatly improve the transmittance of the lens. For example, the reflectivity of each surface of an uncoated lens is 5%, which is reduced to 2% after single-layer coating, and can be reduced to 0.2% with multi-layer coating. This can greatly reduce the diffuse reflection between the lenses of the lens, thereby improving the contrast and sharpness of the image.Magnesium fluoride coatingMagnesium fluoride is a kind of coating material. Magnesium fluoride crystal (MgF 2 ) belongs to the tetragonal system, with a melting point of 1255°C, high hardness, good mechanical properties, stable chemical properties, and not easy to deliquesce and corrode. Its main feature in optical properties is that it has a high transmittance in the vacuum ultraviolet band (the transmittance at 170nm is still above 80%). It is widely used in optical fiber communications, military fields and various optical components.Application of magnesium fluoride coatingThe main application of magnesium fluoride coating is coating on the surface of ordinary tempered glass, thereby improving the light transmittance of the tempered glass surface and achieving easy cleaning function, while also extending the life of the glass. AR coated glass can currently be mainly used in solar cell components, solar thermal, construction, automotive glass and other fields.Preparation of magnesium fluoride coatingMagnesium fluoride coating uses evaporation method, which is called evaporation coating by heating and evaporating a certain substance to make it deposit on the solid surface. This method was first proposed by Faraday in 1857 and has become one of the commonly used coating technologies in modern times. Evaporating substances such as metals, compounds, etc. are placed in a crucible or hung on a hot wire as an evaporation source, and the substrates to be plated such as metals, ceramics, plastics, etc. are placed in front of the crucible. After the system is evacuated to a high vacuum, the crucible is heated to evaporate the substance in it, and the atoms or molecules of the evaporated substance are deposited on the surface of the substrate in a condensed manner. The film thickness can range from hundreds of angstroms to several microns. The film thickness is determined by the evaporation rate and time of the evaporation source (or by the charge amount), and is related to the distance between the source and the substrate. For large-area coating, a rotating substrate or multiple evaporation sources are often used to ensure the uniformity of the film thickness. The distance from the evaporation source to the substrate should be less than the mean free path of the vapor molecules in the residual gas to prevent chemical reactions caused by collisions between the vapor molecules and the residual gas molecules. The high-quality glass is processed on one or both sides to have a lower reflectance than ordinary glass, and the reflectivity of light is reduced to below 1%. In the visible light range, the single-sided reflectivity of ordinary glass is about 4%, and the total spectral reflectivity is about 8%.Jiayuan has layout in both the upstream and downstream of the fluorine chemical industry chain, forming a complete fluorine chemical industry chain. At the same time, Jiayuan is also constantly conducting technological research and development and innovation, and has stronger competitiveness and market position in the production, sales and research and development of magnesium fluoride products. If you are interested in magnesium fluoride products or Jiayuan, you can visit our official website for viewing and consultation!

Sodium metaphosphate: widely used in many fields and has broad market prospects

Recently, the application of sodium metaphosphate in many industries has attracted widespread attention. Its unique properties enable it to play an important role in the fields of chemical, food, pharmaceuticals, etc., and the market demand is also showing a growing trend.In the chemical industry, sodium metaphosphate is an important auxiliary agent. It is often used in metal surface treatment, electroplating and cleaning. Due to its good corrosiveness and cleaning ability, it can effectively remove dirt and oxides on the metal surface, providing a good foundation for the subsequent processing of metal products. For example, in the automobile manufacturing industry, sodium metaphosphate can be used to clean auto parts and improve the surface quality of parts, thereby ensuring the overall performance and safety of the car. In addition, in the field of industrial cleaning, sodium metaphosphate is also a commonly used cleaning agent that can quickly and effectively remove various oil stains and stains, providing convenience for industrial production.The food industry is another important application area of sodium metaphosphate. As a food additive, sodium metaphosphate can be used as a food emulsifier, chelating agent and texturizer. In dairy products, it can stabilize the emulsion system and improve the taste and quality of dairy products; in meat products, sodium metaphosphate can improve the gel strength and water holding capacity of meat products, making meat products more tender and juicy1. As people's requirements for food quality continue to increase, the market demand for food-grade sodium metaphosphate is also gradually increasing. According to data from relevant market research institutions, the market size of food-grade sodium metaphosphate has continued to expand in recent years, and it is expected to maintain a high growth rate in the next few years.In the pharmaceutical field, sodium metaphosphate also has certain applications. It can be used as an excipient in pharmaceutical preparations to improve the stability and solubility of drugs. For example, in some oral liquid preparations, sodium metaphosphate can play a role in regulating pH and increasing drug stability. In addition, in some topical drugs, sodium metaphosphate can also be used as a moisturizer and stabilizer to improve the efficacy of the drug. From the market perspective, the global sodium metaphosphate market is currently highly competitive. Many domestic and foreign companies have increased their R&D investment and continuously launched new products and technologies to improve their market competitiveness. At the same time, with the continuous improvement of environmental protection requirements, some environmentally friendly sodium metaphosphate products have gradually gained favor in the market. For example, some companies have developed low-pollution, low-energy sodium metaphosphate production processes, which not only reduce production costs, but also reduce the impact on the environment, and have good market prospects.Industry experts said that as a multifunctional chemical, sodium metaphosphate is still expanding its application areas. In the future, with the continuous advancement of science and technology and the continuous increase in market demand, the market size of sodium metaphosphate is expected to continue to expand. At the same time, Jiayuan keeps up with market trends, continuously strengthens technological innovation, and improves product quality and performance to meet market demand.

Zinc fluoride: a versatile inorganic compound

Zinc fluoride (chemical formula ZnF2, formula weight 103.37) is a white block or square crystalline powder with multiple properties and a wide range of applications. Recently, with the acceleration of industrialization, zinc fluoride, as an important inorganic compound, has been continuously released in the market demand.In terms of application fields, zinc fluoride has a wide range of uses. In the electronics industry, zinc fluoride is an important raw material for manufacturing electronic components and semiconductor materials, such as field effect transistors and metal oxide semiconductor field effect transistors. In addition, zinc fluoride can also be used to manufacture optoelectronic devices and solar cells.In the chemical industry, zinc fluoride is also widely used. It can be used to make chemicals such as fluoride and hydrogen fluoride, and is also an important raw material for making organic synthesis catalysts, coatings and plastics. Zinc fluoride is also widely used in the manufacture of ceramic materials, including high-temperature ceramics and electronic ceramics, as well as in the manufacture of ceramic glazes to make the ceramic surface smoother, harder and more wear-resistant.Zinc fluoride also plays an important role in glass manufacturing. It can be used to make optical glass and special glass, as well as to enhance the corrosion resistance and high temperature resistance of glass fiber. In addition, zinc fluoride is also used in the pharmaceutical industry, for example, in the manufacture of oral care products and drugs, such as anticancer drugs and antiviral drugs.At present, China is a major producer and exporter of zinc fluoride in the world. In recent years, with the upgrading of market demand and the continuous optimization of related processes, my country's high-end zinc fluoride production capacity has increased, and the zinc fluoride industry structure has gradually adjusted. Against the background of increasingly stringent environmental protection and market supervision, the development of the zinc fluoride industry will upgrade towards safety, greenness and high-endness.In conclusion, zinc fluoride, as a multifunctional inorganic compound, plays an important role in many fields. However, due to its toxicity, strict protective measures must be taken during use and handling to ensure the safety of personnel and the environment. With the continuous development of science and technology and the continuous expansion of market demand, the application field of zinc fluoride will be further expanded, bringing more convenience and benefits to people's lives and work.Jiayuan upholds a rigorous service attitude, resolutely implements standardized management, improves product quality and prevents risks , optimizes resource allocation , promotes industrial upgrading , and takes every step to ensure green, environmental protection and safety .