Europium brand, chemical structure
Europium is a soft rare-earth metal of the lanthanide group, atomic number 63, In the table of D. I. Mendeleev marked as Eu. The atomic weight of almost 152. It is bright with a silvery sheen to the metal. Occurs as an incidental element in the form of salts together with other rare earth metals. Pure dedicated in 1896 by the French chemist E. Demarse. who called it in honor of Europe. Industrially, this metal is now receiving, restoring in vacuum oxide Eu2 O3 with carbon or by electrolysis in molten EuCl3. Among the rare earth elements europium is one of the most expensive. One gram of this metal depending on purity, worth 900 — $ 2000. Like other non-ferrous metals, comes in the form of a circle, sheet, wire.
This is tech metal, is easily processed: it is rolled, bent, drilled, cut, milled. It t° melting point 826 °C, t° boil 1597 °C, specific weight 5.24 g/cm3. At a pressure of 80 HPa and t° minus 271,5°C the europium becomes a superconductor.
|Atomic number Eu||Atomic (molar) mass, g/mol||The degree of oxidation||Density [g/cm3]||The melting temperature t°C||The boiling point of t°C||The heat of fusion kJ/kg|
|No. 63||152||2, 3||5,2||826°C||1597°C||176|
Europium is a fairly active element. Valence +2; +3. It replaces the salts of practically all metals in the open air very quickly covered with the oxide film. When stored it is placed in cans of kerosene or pour a layer of paraffin.
Composed of zirconium extends the width of the capture of thermal neutrons In the nuclear boilers Eu2 O3, borate, europium hexaboride is part of the absorption rods. With Halogens this metal forms a light-sensitive crystals. Unstable 154 europium can be used as a radioactive fuel. In nuclear power Eu2 O3 required in thermochemical splitting of deuterium and tritium. Europium in the laser optics used to generate the orange emission with a wavelength of 610 nm serves as the basis for the development of solid and liquid lasers.
Certified supply rentals on the basis of europium. The specification included data on the percentage composition and mechanical properties of products. We can easily buy in bulk any semi-finished products for large-scale production. We also work with retail buyers. A high level of service and speed of service are the face of our company.
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