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Development Prospects Of Selenium Powder

wallpapers News 2020-12-09
Selenium powder, chemical formula Se, black-gray non-metallic, soluble in concentrated sulfuric acid and chloroform, slightly soluble in carbon disulfide, toxic, insoluble in water and ethanol.
Selenium powder is usually in powder or granular form, with pure appearance, consistent color, purity up to 99.99%, no impurities such as soil, stable composition, and uniform moisture.
Selenium powder is the toner used in the copier. The toxicity comes from the resin and conductive (electrostatic) agent. When the copy is completed, harmful gases will be released when it passes through the heating roller. It is best to place it at a distance of 3 meters away from the working place, with ventilation.

As long as it is used in a ventilated and ventilated environment, it is not harmful. However, some people have severe allergic reactions and need special attention. Especially when replacing the toner cartridge, it is best to wear a mask. Wash hands immediately after touching the toner to avoid direct contact with mucous membranes.
Since the 20th century, the use of selenium has become more and more extensive, especially in the manufacture of semiconductor equipment, optoelectronic equipment, selenium solar cells, laser devices, lasers and infrared light guide materials. In the development of new technologies for optoelectronic applications, selenium is a typical photosensitive semiconductor material used to make selenium photovoltaic cells and selenium rectifiers. In the development of new materials, adding a small amount of selenium can improve the machining performance of carbon steel, stainless steel and copper alloys.

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