Holmium Metal (Ho)-Powder introduce:
Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare-earth element.
Phase at STP： solid
Melting point： 1734 K (1461 °C, 2662 °F)
Boiling point： 2873 K (2600 °C, 4712 °F)
Density (near r.t.)： 8.79 g/cm3
when liquid (at m.p.)： 8.34 g/cm3
Heat of fusion： 17.0 kJ/mol
Heat of vaporization： 251 kJ/mol
Molar heat capacity： 27.15 J/(mol·K)
Holmium has the highest magnetic permeability of any element and therefore is used for the polepieces of the strongest static magnets. Because holmium strongly absorbs neutrons, it is also used as a burnable poison in nuclear reactors.
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