It is also used in the production of neodymium, iron, and boron permanent magnetic magnets. Also, it is used for atomic energy and metal halide lamp production. Dysprosium can be added to neodymium, iron and boron permanent magnetic materials. This magnet’s coercivity can be increased by adding 2 to 3 percent dysprosium. The demand for Dysprosium has increased dramatically. Dysprosium Oxide is also used as raw material to prepare dysprosium metallic, as an addition for glass and neodymium-iron-boron permanent magnets.
Introduction to Europium Oxide
Europium Oxide This powder is pale red. The relative densities is 7.42. The melting temperature is 2002 degrees. Insoluble in acid, but soluble with water. It can absorb both carbon dioxide and water from the air.
How to make the europium oxide
Extraction Method: Use the solution of rare earth chloride that is obtained after processing monazite and mixed rare earth ore. Extraction with P204-kerosene-HCL-ReCl3 system, the first grouping of neodymium and samarium, the raffinate is used to extract light rare earth, samarium and heavy rare earth are extracted into the organic phase, and then the middle rare earth are back-extracted with 2.0mg/L HCl to obtain a medium After the rare earth samarium enrichment is reduced by zinc powder, europium is extracted by the alkalinity method and then precipitated with oxalic acid, separated, dried, and burned to obtain europium oxide.
Is europium oxide toxic?
The salt of rare Earth elements can inhibit the production and reduce the content of thrombin. It can also precipitate fibrinogen. The toxicity decreases with increasing atomic weight. Gas masks are required to be worn when working. Radioactivity requires special protection. It is important to prevent dust from spreading.
Storage of Dysprosium Oxide and Europium Oxide
The product should be kept in a sealed, dry, and cool environment and not exposed. As well, it is best to avoid using heavy pressure when transporting the item.
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