High Purity Selenium Se Powder CAS 7782-49-2, 99%
Description of Selenium Powder :
Selenium powder is a metal powder with unique physical and chemical properties made from elemental selenium through a specific process. It exists in fine particles and has a wide range of applications. From the point of view of physical properties, selenium powder is a substance with a metallic lustre; its melting point is relatively low, and its boiling point is relatively high. It has excellent electrical conductivity as well as good thermal conductivity. It also has electrical properties. In addition, selenium powder has a lower density and is lighter than many other metal powders, making it an advantage in manufacturing certain lightweight materials. Selenium powder is excellent in terms of chemical properties. It is a more active element that can chemically react with various elements to generate various compounds. Notably, selenium powder can react with hydrogen to produce selenium hydride at a certain temperature and pressure. In addition, selenium powder can also react with sulfur to produce selenium disulfide. In a certain dose, selenium powder can be used as an essential trace element of the organism and has an important role in the organism's immune system and metabolic process.
Application of Selenium Powder :
Selenium powder is a kind of metal powder with wide application. Its distinctive chemical and physical properties and biological activity make it an important instrument in many fields. The following are the main application areas of selenium powder:
Electronics industry: Selenium powder is mainly used in the electronics industry to make various electronic components, such as selenium batteries, photocells, selenium rectifiers and so on. Selenium powder has good electrical conductivity and optical properties, making it an important application in the solar cell and photoelectric industry. In addition, selenium powder can also be used to make various electronic devices, such as integrated circuits, transistors and so on.
Chemical industry: Selenium powder is mainly used in the chemical industry to synthesize various organic selenium compounds. Organoselenium compounds have good properties for drugs, pesticides and synthetic rubber, so they are widely used in the fields of drugs, pesticides and synthetic rubber. In addition, selenium powder can also be used to synthesize various inorganic selenium compounds, such as selenium sulfide, selenium chloride and so on.
Alloy manufacturing: Selenium powder can manufacture various alloys, such as selenium-copper alloy, selenium-nickel alloy, etc. These alloys possess excellent mechanical properties as well as corrosion resistance. Therefore, they can be used in numerous applications in manufacturing, aerospace, and other areas.
Scientific research: Selenium powder is also widely used in scientific research. For example, selenium powder can be used to make monocrystalline selenium and polycrystalline selenium for studying the crystal structure and physical properties of selenium. In addition, selenium powder can also be used to study the chemical reaction and synthesis methods of selenium.
Other fields: Selenium powder can also be used to make various coatings and additives, such as selenium coatings, selenium coatings, etc., to improve the appearance and performance of products. In addition, selenium powder can also be used to make some polymer materials and composite materials.
Production Method of Selenium Powder :
There are many production methods of selenium powder; the following are several common production methods:
Electrolysis: Electrolysis is a common method for producing selenium powder. The method is to reduce selenide to selenium powder by electrolysis of molten salt or solution containing selenide in an electrolytic cell. The selenium powder produced by the electrolysis method has high purity, fine particle size and good activity and is suitable for fields with high requirements.
Chemical method: The chemical method is another common method of producing selenium powder. The method converts selenium-containing substances into selenium powder through a chemical reaction. For example, sodium selenite solution is reacted with sodium sulfate solution to produce sodium selenite and sodium sulfate. Then, sodium selenite is reduced to selenium powder by a reducing agent. The selenium powder produced by the chemical method has high purity but coarse particle size and poor activity.
Gas phase method: The gas phase method is a new method for producing selenium powder. The method is to heat the selenium-containing substance to high temperatures, vaporize it, and then cool it in the gas phase to condense it into selenium powder. The selenium powder produced by the vapour phase method has high purity, fine particle size and good activity and is suitable for fields with high requirements.
Sputtering method: Sputtering is a physical method of producing selenium powder. The method is to place the selenide target in a vacuum chamber, sputter the target with high-energy particles or plasma, and then sputter selenide into selenium powder. The selenium powder produced by the sputtering method has high purity, fine particle size and good activity and is suitable for fields with high requirements.
Prospect Market of Selenium Powder :
Selenium powder is one kind of substance with a wide range of value; based on the advancement of technology and science and the shift in the market, the market prospect of selenium powder is also changing and developing. The following are several possible directions for the selenium powder market prospects:
The continuous growth of the electronics industry: selenium powder has a wide range of applications in the electronics industry; with the continuous development of the electronics industry and the continuous progress of technology, the market demand for selenium powder will continue to grow. For example, the application of selenium powder in the solar cell and optoelectronics industry will increase with the growth of renewable energy demand.
Growth in the pharmaceuticals and pesticides: Selenium powder has a wide range of applications in the field of pharmaceuticals and pesticides, and with the continuous development of biotechnology and agricultural technology, the application of selenium powder in this area will continue to increase. For example, applying selenium powder in anti-cancer drugs and pesticides will be further developed and promoted.
The expansion of the alloy field: selenium powder can be used to manufacture a variety of alloys; with the continuous development of machinery manufacturing, aerospace and other fields, the application of selenium powder in the alloys field will also be expanded. For example, the application of selenium powder in manufacturing high-performance alloys will be further developed and promoted.
Development of new application fields: With the continuous development of science and technology and changes in market demand, selenium powder may also be developed in new application fields. For example, the application of selenium powder in emerging fields, such as new energy sources (such as energy storage batteries) and biological fields (such as biosensors), will be further explored and developed.
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Selenium Powder Properties
|Additional Titles ||Selenium particles, Selenium microparticles, Selenium micropowder, |
Selenium Micropowder & Micro Micro Micro Micro Micro Micro -Selenium
Selenium Powders Submicron, and Selenium Powder
|Combination Formula ||Se|
|Appearance ||Black powder or gray powder|
| Melting Point ||217 |
|Boiling Point ||684.9 |
| Density ||4.79 g/cm3|
|Electrical Resistance ||106 microhm-cm @ 0 degC|
|Poisson rate ||0.33|
|Tensile force ||N/A|
|Support ||0.00519W/cm/K @ 289.2 K|
|Thermal Expansion ||(25 degC) 37 um*m -1 *K -1 |
|Vickers Hardness ||N/A|
|Young-s Modular ||GPA: 10|
Safety & Health Information
| Hazard Statements ||H301+H331-H373-|
| Hazard Codes ||T|
| Risk Codes ||23/25-33-53|
|Privacy statement ||20/21-28-45-61|
|Transport Information ||UN3288|