CAS:7429-91-6

· Molecular Formula:Dy

· Purity:99.9%

· Specification:- 100 mesh / - 200 mesh 

· EINECS No.:231-073-9

· Hazardous Class:Class 4.1

· UN No.:UN3089

Package Class:Vacuum Bag or with argon protection sealed

Dysprosium Metal (Dy)-Powder 

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. As-cast dark gray powder is extremely susceptible to oxidation and ignition in the air.

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)

Chemical Composition

Application

Dysprosium is an important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency. It is highly susceptible to magnetization, they are employed in various data-storage applications, such as in hard disks.

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.