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7429-91-6
Dy
6600GN
99.9%-99.95 %
6 mm - 12 mm/3 mm - 12 mm
7429-91-6
Class 4.1
UN3089
PG II
Characteristic
Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster.
Phase at STP： solid
Melting point： 1680 K (1407 °C, 2565 °F)
Boiling point： 2840 K (2562 °C, 4653 °F)
Density (near r.t.)： 8.540 g/cm3
when liquid (at m.p.)： 8.37 g/cm3
Heat of fusion： 11.06 kJ/mol
Heat of vaporization： 280 kJ/mol
Molar heat capacity： 27.7 J/(mol·K)
Application
Dysprosium is used, in conjunction with vanadium and other elements, in making laser materials and commercial lighting. Because of dysprosium's high thermal-neutron absorption cross-section, dysprosium-oxide–nickel cermets are used in neutron-absorbing control rods in nuclear reactors.
Dysprosium is used in dosimeters for measuring ionizing radiation.
Dysprosium iodide and dysprosium bromide are used in high-intensity metal-halide lamps. These compounds dissociate near the hot center of the lamp, releasing isolated dysprosium atoms.
Several paramagnetic crystal salts of dysprosium (Dysprosium Gallium Garnet, DGG; Dysprosium Aluminum Garnet, DAG; Dysprosium Iron Garnet, DyIG) are used in adiabatic demagnetization refrigerators.
Characteristic
Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster.
Phase at STP： solid
Melting point： 1680 K (1407 °C, 2565 °F)
Boiling point： 2840 K (2562 °C, 4653 °F)
Density (near r.t.)： 8.540 g/cm3
when liquid (at m.p.)： 8.37 g/cm3
Heat of fusion： 11.06 kJ/mol
Heat of vaporization： 280 kJ/mol
Molar heat capacity： 27.7 J/(mol·K)
Application
Dysprosium is used, in conjunction with vanadium and other elements, in making laser materials and commercial lighting. Because of dysprosium's high thermal-neutron absorption cross-section, dysprosium-oxide–nickel cermets are used in neutron-absorbing control rods in nuclear reactors.
Dysprosium is used in dosimeters for measuring ionizing radiation.
Dysprosium iodide and dysprosium bromide are used in high-intensity metal-halide lamps. These compounds dissociate near the hot center of the lamp, releasing isolated dysprosium atoms.
Several paramagnetic crystal salts of dysprosium (Dysprosium Gallium Garnet, DGG; Dysprosium Aluminum Garnet, DAG; Dysprosium Iron Garnet, DyIG) are used in adiabatic demagnetization refrigerators.
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