What’s Dysprosium Oxide?
Dysprosium Oxide Chemical substance with chemical formula Dy2O3. The powder is white and slightly hygroscopic. It can absorb water and carbon dioxide from the air. Magnesium is stronger than that of high iron oxide. Insoluble in acid and alcohol. Principally used in lighting.
Dysprosium oxide’s Chemical and Physical Characteristics
1. Chemical and physical data
Dysprosium Oxide has a molecular mass (373.00), a density of (d274) 7.81 and a melting point (2340+-10degC) while the boiling point is around 3900degC.
2. Property of physical and chemical substances
Dysprosiumoxide is a white crystal powder. It’s insoluble when water is used, but can be dissolved in acid or ethanol. Exposure to the air causes it to absorb carbon dioxide, which turns into dysprosium-carbonate.
Dysprosium oxide’s main use
Dysprosium dioxide can be used to make dysprosium and as an ingredient for glass and neodymium-iron boron permanent magnetics. As an additive for permanent magnets made of neodymium Iron Boron, dysprosium can be also used. The coercivity of a magnet may be increased by adding about 2 to 3.3% dysprosium. The past demand was low for dysprosium. But with NdFeB, this element is becoming a necessity. A magnet’s grade should be between 95 to 99.9%. This demand is growing rapidly. Also, dysprosium oxide can be used to make dysprosium metallic, an additive for glass, Neodymium Iron Boron permanent magnets and in magneto-optical memories materials.
Dysprosium Oxide Lightening Material: Preparation
Make sure you weigh enough europium oxide, dysprosium powder, and dilute concentrated nitric Acid. Heat and stir the ionic Solution A. After A has been heated and stirred, mix solution B with A. The solution is ready to be used as a sol by heating a small amount of water to 80°C. You quickly transfer the solution to the corundum container and seal it. The high-temperature resistance furnace can be preheated up to 600 degC. Next, place the crucible that contains the precursor solution in the furnace and quickly close the door. Once heated, the precursor solution instantly boils and produces large amounts of heat. It takes approximately 5 minutes to complete the entire process. Once the sample has been removed, it can be cooled at room temp.
It is a porous, loosely porous product that has a yellowish-green color. You can grind the product into SrAl2O4;Eu2+ and Dy3+ luminescent material. The initial illuminance is 15lux, with an additional 12h afterglow. The emission peak and excitation peaks of the luminescent material powder are respectively 320nm & 365nm. When the particle size is greater than 0.5 microns, then the relative Eu and Dy contents change or the crystall lattice is damaged. The luminous brightness of the luminescent material is decreased or no light is emitted. But if the particle size is larger, it can cause uneven coating or a textured appearance. This test shows that the luminescent dust has a particle size greater than 75mm.
Luoyang Tech Co., Ltd. is a company that produces professional dysprosium powder. It has more than 12 years’ experience in chemical product development and research. Feel free to email us for the best dysprosium powder.
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