Selenium Granules Pure Min. 99.8% Metal Se Element 34 1g-5kg

Description: Selenium granules pure min. 99.8% Metal Se Element 34 1gr-5kg Selenium granules pure min. 99.8% Metal Se Element 34 1gr-5kg Weight tolerance can be up to +/-2% TOP quality at fair prices High-quality products made to measure and cut to size Competent advice & service Technical specifications: Brand: Evek Manufacturer number: Not applicable Type: granules Material: selenium Operation area: glass making (selenium ruby glass); medicine (treatment of skin diseases); semiconductor manufacturing; CIGS solar cells; as selenium dioxide (blackening of aluminum and brass) Norm classifications: Name, symbol, atomic number: Selenium, Se, 34 Purity: at least 99.8% Further information: Density: 4.81 g/cc Granulate size: 2 - 5mm melting point: 221°C thermal conductivity: 0.52W/(m·K) documentation Data sheet (German) Description: Selenium is a chemical element from the group of chalcogens. The offered technical selenium granulate is a by-product in the production of electrolytic copper and occasionally also of zinc. The selenium content is min. 99.8%. The material is well resistant to water, weather and most acids. Selenium can have metallic and non-metallic modifications. The most stable modification is the gray metallic selenium. It exhibits semi-metallic properties. The red selenium is non-metallic and turns into the gray metallic selenium above 80 °C. Third modification is black selenium. Above 80 °C, this transforms into the gray metallic modification. In addition, selenium metal has six naturally occurring isotopes. Five of those are stable. Selenium granules are of great economic importance and are essential for all forms of life. In medicine, selenium-based preparations are used to treat skin diseases. To combat dandruff, selenium is used in shampoos as 1% selenium sulfide SeS2. In the glass industry, selenium metal is used to manufacture selenium ruby glass, which is used in signal and traffic light systems. Selenium is also in demand in the semiconductor industry. The main applications of pure selenium are: glass making (selenium ruby glass); medicine (treatment of skin diseases); semiconductor manufacturing; CIGS solar cells; as selenium dioxide (blackening of aluminum and brass). Selenium metal is characterized by the following properties: can exist in several modifications; can be metallic and non-metallic; gray metallic selenium has semi-metallic properties; has a variety of isotopes. Chemical composition (in %) se feet Cu S Al at least 99.8 Max. 0.005 Max. 0.002 Max. 0.005 Max. 0.005 Basic price: weight price/kg 0.001kg 0.002kg 0.005kg 0.01kg 0.025kg 0.05kg 0.1kg 0.25kg 0.5kg 1 kg 2kg 5kg Listing and template services provided by inkFrogSelenium can have metallic and non-metallic modifications. The most stable modification is the gray metallic selenium. It exhibits semi-metallic properties. The red selenium is non-metallic and turns into the gray metallic selenium above 80 °C. Third modification is black selenium. Above 80 °C, this transforms into the gray metallic modification. In addition, selenium metal has six naturally occurring isotopes. Five of those are stable. Selenium granules are of great economic importance and are essential for all forms of life. In medicine, selenium-based preparations are used to treat skin diseases. To combat dandruff, selenium is used in shampoos as 1% selenium sulfide SeS2. In the glass industry, selenium metal is used to manufacture selenium ruby glass, which is used in signal and tra

Price: 6.67 USD

Location: Mülheim

End Time: 2024-11-12T12:41:17.000Z

Shipping Cost: 27.6 USD