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Rundown about Dysprosium

Dysprosium(Dy) is one of lanthanide elements with an atomic number 66. Dysprosium is a bright, soft, silvery-white rare earth metal. Dysprosium metal readily burns to form dysprosium oxide (Dy2O3), vigorously reacts with halogens forming dysprosium halides. Because dysprosium is a little electropositive it slowly reacts with cold water resulting in dysprosium hydroxide. Dysprosium was discovered by French chemist Paul Emile Lecoq de Boisbaudran in 1886 as impurity in erbia. However, dysprosium was isolated in 1906 by another French chemist Georges Urbain. Only in 1950 pure dysprosium was produced when ion-exchange technique was developed. Dysprosium name comes from Greek word “dysprositos”, meaning hard to obtain. Boisbaudran made his own procedure of separation, which was intricate and time-consuming one. While this procedure was being made 32 precipitations of hydroxide and 26 another precipitations of insoluble oxalate salts resulted. Dysprosium has less applications compared to other chemical elements. But this is not obstacle for dysprosium to have its opportunity to be used.
Applications:
Dysprosium is used, conjunction with vanadium, in making lasers materials and commercial lighting
Dysprosium is used as dysprosium-oxide-nickel cermets in neutron-absorbing rods in nuclear reactors due to dysprosium’s high thermal-neutron absorption cross section area
Dysprosium is used in dysprosium-cadmium chalcogenides which are sources of infrared radiation that is useful for studying chemical reactions
Dysprosium is used as one component of Terfenol-D. Terfenol-D is employed in transducers, wide-band mechanical resonators and high precision liquid fuel injectors because it has the highest room-temperature magnetostriction
Dysprosium is used in dosimeters for measuring ionizing radiation
Nanofibers of dysprosium compounds have high strength and a large surface area
Dysprosium ion (Dy3+) has high downshifting luminescence properties


https://nanografi.com/rare-earth-materials/dyspros...
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