Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The REEs, including dysprosium, were thrust into the global media spotlight in 2009 after limits on Chinese exports of the elements led to supply shortfalls and investor interest in the metals. Dysprosium (Dy) Metal Granules / Pellets / Pieces / Particles / Cylinder Dysprosium (Dy) Metal Rods / Bars / Wire Dysprosium (Dy) Metal Sheets / Plates / Disc / Board Dysprosium is added to various advanced optical formulations due to the fact that it emits in the 470-500 and 570-600 nm wavelengths and is an essential additive in NdFeB magnets. As a pure metal it is little used, because it reacts readily with water and air. Dysprosium is used in control rods for nuclear reactors because of its relatively high neutron-absorption cross section; its compounds have been used for making laser materials and phosphor activators, and in metal halide lamps. Get exclusive access to content from our 1768 First Edition with your subscription. Dysprosium turnings ignite easily and burn white-hot. Dysprosium ingot, 99.9% trace rare earth metals basis CAS Number 7429-91-6. Dysprosium metal is not widely used so far. The metal costs about $300/kg in purities of 99+%. It is a pastel yellowish-greenish, slightly hygroscopic powder having specialized uses in ceramics, glass, phosphors, lasers and dysprosium metal halide lamps. Dysprosium has a metallic, bright silver lustre. It is quite soft and can be machined without sparking if overheating is avoided. This accounts for only about 1 percent of all rare earth refined each year. Dysprosium Metal (Dy) Rod, Wire, Ring/br> Dysprosium Metal (Dy)) Cylinder. Along with holmium, dysprosium also has the highest magnetic moment (the strength and direction of pull resulting affected by a magnetic field) of any element. This involved 32 precipitations of the hydroxide using ammonia followed b… In this quiz you’ll be shown all 118 chemical symbols, and you’ll need to choose the name of the chemical element that each one represents. Dysprosium (Dy), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Dysprosium metal ingot - one troy ounce - .995 bullion Discovered in Paris in 1886 by Paul Emile Lecoq de Boisbaudran and named for the Greek translation of dysprositos which means "hard to get", techniques to purify dysprosium were not refined until the … The silvery white metal dysprosium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form dysprosium hydroxide, Dy(OH) 3, and hydrogen gas (H 2). The metal is also a component of magnetostrictive Terfenol D (Tb0.3Dy0.7Fe2). Click here to read more about dysprosium applications. The β-phase has a = 3.595 Å, b = 6.184 Å, and c = 5.678 Å at 86 K (−187 °C, or −305 °F). Depending upon the type of ore, a variety of hydrometallurgical techniques must be employed in order to extract individual REEs. November 2011.URL: www.mineralsuk.comKingsnorth, Prof. Dudley. Dysprosium metal is a soft, lustrous-silver rare earth element (REE) that is used in permanent magnets due to its paramagnetic strength and … Applications of Dysprosium Metal (Dy) Dysprosium is mainly used in the manufacture of the new lighting source – dysprosium lamp. Dysprosium Oxide (Dy 2 O 3) is a sesquioxide compound of the rare earth metal dysprosium. It is relatively stable in air at room temperature, but dissolves readily, with the evolution of hydrogen, in mineral acids. Dysprosium metal is a silver-white metal with a melting point of 1412°C, a boiling point of 2562°C, and a density of 8.55 g/cm3. Dysprosium turnings ignite easily and burn white-hot. Dysprosium exists in three allotropic (structural) forms. The soft, silver-colored metal's main application is in permanent magnets. Dysprosium’s main use is in alloys for neodymium-based magnets. Froth flotation and roasting of concentrates is most the most common method of extracting rare earth sulfate, a precursor compound that can consequently be processed via ion exchange displacement. The major use of dysprosium is as an alloying addition to Nd2Fe14B permanent magnet materials (in which some of the neodymium is substituted with dysprosium) to increase both the Curie point and especially the coercivity and, therefore, improve the high-temperature performance of the alloy. Dysprosium is a rare earth element with bright silver, metallic color. Dysprosium is a relatively hard metal and is silvery white in its pure form. The periodic table is made up of 118 elements. Dysprosium has a bright, silvery-metallic appearance. He named the new element after the Greek word dysprositos, meaning 'hard to get'. This work using the ASM metallisation process has confirmed ASM’s ability to produce the key permanent magnet metals (dysprosium, praseodymium and neodymium) and alloys that will be sourced from its Dubbo Project in central west NSW. Dysprosium is a silver rare earth metal with atomic number 66 and element symbol Dy. Learn … Reflecting the intimate nature of REEs, de Boisbaudran was initially investigating impure yttrium oxide, from which he drew erbium and terbium using acid and ammonia. Metallic dysprosium is bright silver in color and when combined tends to form greenish-yellow salts. The addition of between 3 to 6 percent dysprosium (by weight) to the NdFeB magnetic alloy increases the magnet's Curie point and coercivity, thereby, improving stability and performance at high temperatures while also reducing demagnetization. EC Number 231-073-9. Due to dysprosium and its compounds high susceptibility to magnetization, they are used in a variety of data storage applications, such as in compact discs. The α-phase is close-packed hexagonal with a = 3.5915 Å and c = 5.6501 Å at room temperature. It also occurs in the products of nuclear fission. Dysprosium is a rare-earth element and has a metallic, bright silver luster. As the Investing News Network has previously discussed, deposits rich in heavy rare earths like dysprosium are less common than deposits rich in light rare earths. The metal is soft enough to be cut with a knife and can be machined without sparking if overheating is avoided. Global production of dysprosium is limited to about 1800 metric tonnes (contained dysprosium) annually. from 3.50. Our editors will review what you’ve submitted and determine whether to revise the article. Despite what Wikipedia says about this element, it is most definitely not so soft that it "can be cut with a knife.&q Dysprosium is a relatively hard metal and is silvery white in its pure form. Chemically, dysprosium behaves as a typical trivalent rare earth and forms a series of pale yellow compounds in which its oxidation state is +3. The Important Role of Dysprosium in Modern Permanent Magnets. The metal has been prepared by metallothermic reduction of the anhydrous halides with alkali or alkaline-earth metals. It is also used in nuclear reactors to make nuclear reactor control rods. This article was most recently revised and updated by, https://www.britannica.com/science/dysprosium, dysprosium - Student Encyclopedia (Ages 11 and up). Dysprosium metal reacts with all the halogens to form dysprosium(III) halides. Dysprosium: another exotic metal few have heard about. They range in mass from 138 to 173. MDL number MFCD00010982. Dysprosium metal shiny sample of 1 gram 99,95% in glass vial Dysprosium metal is used in rare earth magnet alloys and magnesium alloys. Some important mineral sources of dysprosium are laterite ionic clays, xenotime, fergusonite, gadolinite, euxenite, polycrase, and blomstrandine. You can even cut it with a knife. The largest rare earth producers include Baotou Steel Rare Earth Hi-Tech Co., China Minmetals Corp., and Aluminum Corp. of China (CHALCO). Dysprosium is a metal. This, in turn, led to rapidly increasing prices and significant investment in the development of alternative sources. Dysprosium fluoride can be reduced into metal ingots by heating with calcium at high temperatures in tantalum crucibles. In hydrofluoric acid, however, the heavy rare earth metal will form a protective layer of dysprosium fluoride (DyF3). Argus price assessments cover the most active trading regions for each commodity. Excluding nuclear isomers, a total of 29 radioactive isotopes of dysprosium are known. Such magnets dominate the market for high-efficiency traction motors that are used in hybrid and electric vehicles, wind turbine generators and hard disc drives. The French chemist Paul-Emile Lecoq de Boisbadran first recognized dysprosium as an independent element in 1886 while he was analyzing erbium oxide. When cooled below ~90 K, the ferromagnetic ordering is accompanied by an orthorhombic distortion, β-Dy, of the hexagonal close-packed lattice. Boisbaudran developed an intricate and time-consuming procedure for the separation of dysprosium. The name Dysprosium comes from the Greek word (dysprositos), which means “difficult to get at”. Dysprosium (Dy), chemical element, a rare-earth metal of the lanthanide series of the periodic table. While a number of ore types, including monazite and bastnasite, may contain dysprosium, the sources with the highest percentage of contained dysprosium are the ion adsorption clays of Jiangxi Province, China and xenotime ores in South China and Malaysia. Dysprosium's physical characteristics can be greatly affected by even small amounts of impurities. China dysprosium metal - find detail silver element found from nikyc peace m The least stable is dysprosium-139 (half-life 0.6 second), and the most stable is dysprosium-154 (half-life 3.0 × 106 years). Like other rare-earth or lanthanide elements, dysprosium occurs … It is quite stable in air, remaining shiny at room temperature. It is the best material for capturing hot neutrons, which has some applications in controlling nuclear processes. PubChem Substance ID 24855787 Dysprosium metal is a soft, lustrous-silver rare earth element (REE) that is used in permanent magnets due to its paramagnetic strength and high-temperature durability. Erbium oxide, itself, was found to be harboring two other elements, holmium, and thulium. NdFeB magnets are now the standard in electronic applications and hybrid electric vehicles. Commercial separation is performed by liquid-liquid extraction or ion-exchange methods. Research by General Motors and Sumitomo Special Metals led to the creation of these stronger, cheaper versions of the first permanent (samarium-cobalt) magnets, which had been developed 20 years earlier. The resulting dysprosium ions are then stabilized with fluorine to form dysprosium fluoride. Corrections? It is really just a nonmetal. Dysprosium-cadmium chalcogenides, as sources of infrared radiation, have been used for studying chemical reactions. Dysprosium is relatively stable in air at room temperature, yet tarnishes in moist air. The current price of dysprosium is significantly higher than the real long-term baseline. This is due to the fact that pure dysprosium is strongly paramagnetic above -93°C (-136°F), meaning it is attracted to magnetic fields within a wide range of temperatures. As de Boisbaudran worked on away at his home, the elements began to reveal themselves like Russian dolls, and after 32 acid sequences and 26 ammonia precipitations, de Boisbaudran was able to identify dysprosium as a unique element. Dysprosium is always found in the minerals monazite and bastnaesite, and in smaller quantities in several other minerals such as xenotime and fergusonite. Dysprosium-cadmium chalcogenides provide infrared radiation, and have been used to study chemical reactions. Other details: Dysprosium, atomic no. Other products of rare earth elements: Thulium Oxide, Europium Oxide, Lutetium Oxide, etc. Like the other lanthanides, dysprosium is found in monazite and bastnaesite deposits, but smaller quantities can also be found in minerals like xenotime and fergusonite. Ultrapure dysprosium dendrites, about 2 by 2 cm. Empirical Formula (Hill Notation) Dy . Let us know if you have suggestions to improve this article (requires login). Molecular Weight 162.50 . Dysprosium's high melting temperature and neutron absorption cross section also allow it to be used in nuclear control rods. Presentation: September 24, 2013. The metal is further purified by vacuum distillation. Recent media attention examining global dependence on Chinese REE production often highlights the fact that the country accounts for roughly 90% of global REE production. The naturally occurring isotopes are all stable and have mass numbers 164 (natural abundance 28.3 percent), 162 (25.5 percent), 163 (24.9 percent), 161 (18.9 percent), 160 (2.33 percent), 158 (0.10 percent), and 156 (0.06 percent). There are 7 isotopes of dysprosium in nature: 156 Dy, 158 Dy, 160 Dy, 161 Dy, 162 Dy, 163 Dy and 164 Dy. 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