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Selenium powder
It is a chemical with the symbol Se. It has atomic number 34. It is nonmetal, but it’s more commonly called a metalloid. It has properties that are in between sulfur and tellurium on the periodic table. In Earth’s surface, it occurs rarely in its pure ore compound form or in its elemental condition.
Selenium powder
Water and ethanol are insoluble. Selenium powder can be in a powder or granular state, with a uniform color, a consistent appearance, 99% purity and no impurities like soil.
Selenium Application
Selenium
Selenium is found in metal sulfur ores where it partly replaces the sulfur. Selenium is most commonly produced commercially as a byproduct during the refining and production of metal sulfide ores. Selenium compounds or minerals are rare but known. Selenium is used primarily in glassmaking, and as a pigment. Selenium can be used as a photocell and semiconductor. The silicon semiconductor has replaced most of the electronic applications, which were once very important. In some types of DC power surge protecters and in one type of fluorescent quantum dot, selenium is still used.
Selenium is toxic at even low doses. This can lead to selenosis. Selenium appears in many multivitamins as well other dietary supplement, infant formula and as a component to the antioxidant enzymes thioredoxin reductiontase or glutathione peroxidase which reduces oxidized molecules indirectly in animals and certain plants. The requirements for selenium in plants vary by species. Some require large amounts, and others appear to need none.
Preparation with Selenium Powder
Selenium is an element that is rare. No independent selenium plant exists in the world. Selenium is generally associated with the electrolysis and nickel in the anode-mud. Selenium and tellurium are recovered and purified using many different methods. These include caustic oxidative pressurized leaching (COPL), oxidative roasteding and high temperature leaching (OHTL), low-temperature roasting with oxidative leaching (LTORL), dilute sulfuric acid-leaching etc. Selenium and tellurium reduction is mainly carried out by copper and sulfur dioxide reduction. method. Pre-roasting oxidation is a more complex method that increases the cost and complexity of the power equipment. In addition, sulfur dioxide gas can be harmful to humans and the environment. The H2O2 is used as an oxidant to oxidize selenium. Tellurium can be separated by adjusting the pH after the solid-liquid separation. Selenium and tellurium recover at 99% each. The purity of the product can reach 99%.
Selenium powder Toxicity
Inhalation causes pulmonary edema and inflammation of the bronchial tubes. Elemental
Selenium powder
Exposure can also cause mucous membrane inflammation, nose bleeding, and coughing.
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Selenium powder
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