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Special formed

Dysprosium  
Formula: Dy
Alias / Keywords: Dysprosium Rod, Dysprosium Metal Rod, Dy Rod, Dy Metal Rod, Dysprosium Tube, Dysprosium Metal Tube, Dy Tube, Dy Metal Tube, Dysprosium Circle, Dysprosium Metal Circle, Dy Circle, Dy Metal Circle, Dysprosium Plate, Dysprosium Metal Plate, Dy Plate, Dy Metal Plate, Dysprosium Disc, Dysprosium Metal Disc, Dy Disc, Dy Metal Disc, Dysprosium Sheet, Dysprosium Metal Sheet, Dy Sheet, Dy Metal Sheet, Dysprosium Foil, Dysprosium Metal Foil, Dy Foil, Dy Metal Foil, Dysprosium Wire, Dysprosium Metal Wire, Dy Wire, Dy Metal Wire, Dysprosium Bar, Dysprosium Metal Bar, Dy Bar, Dy Metal Bar, Dysprosium Powder, Dysprosium Metal Powder, Dy Powder, Dy Metal Powder, Dysprosium Block, Dysprosium Metal Block, Dy Block, Dy Metal Block, Dysprosium Cubit, Dysprosium Metal Cubit, Dy Cubit, Dy Metal Cubit, Dysprosium Crucible, Dysprosium Metal Crucible, Dy Crucible, Dy Metal Crucible
Item no.: 931066
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The element has a metallic, bright silver lustre. It is relatively stable in air at room temperature, but dissolves readily, with the evolution of hydrogen, in mineral acids. It is a rare earth metal found in minerals such as xenotime, monazite and bastnaesite. Dysprosium Metal is an important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency. Another most promising use of Dysprosium Metal is in the magnetostrictive alloy.


[Bohr Model of Dysprosium]
Atomic Volume: 19.0 W/D
Boiling Point: 2567°C
Compressibility: 2.55x10-6cm2/kg
Covalent Radius: 1.59Angsroms
Crystal Structure: Hexagonal
Density (18°C): 8.55g/cm3
Electrical Resistivity (298K): 92.6μΩ-cm
First Ionization Energy: 157K-cal/g-mole
Heat of Fusion: 4.1k-cal/g-atom
Heat of Vaporization: 67K-cal/g-atom
Magnetic Moment: 10.64Bohr magnetons
Magnetic Susceptibility: 99,800x10-6emu
Melting Point: 1412°C
Specific Heat (25°C): 0.041cal/g°C
Standard Electrode Pontential: +2.2volts
Tensile Strength: 35,700psi
Thermal Conductivity: 0.024cal/cm2/s/°C
Thermal Neutron Cross Section: 1100barns/atom
Trasformation Temperature: 1384°C
Yield Strength: 32,600psi
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Applications

Dysprosium is used in nuclear reactors as a cermet, a composite material made of ceramic and sintered metal, to make laser materials, nuclear reactor control rods, as sources of infrared radiation for studying chemical reactions. Another use in the field of radioactivity is in dosimeters for monitoring exposure to ionizing radiation.

Dysprosium in the environment

Dysprosium is one of the more abundant lanthanide elements and is more than twice as abundant as tin. Dysprosium is never encountered as the free element, but is found in many minerals. The most important ores are monazite and bastnasite. World production in around 100 tonnes per year.

Health effects of Dysprosium

Dysprosium has no biological role. Soluble Dysprosium salts are mildly toxic by ingestion, while insoluble salts are non toxic. From toxicity tests on mice it was calculated that a dose of 500 grams or more would be needed to put a person's life at risk.

Environmental effects of Dysprosium

Dysprosium poses no Environmental threat to plants and animals.

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