Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare-earth element.

Holmium (Ho) Metal Sheet

• Atomic Number: 67
• Atomic Mass: 164.93031 amu
• Melting Point: 1470.0 °C (1743.15 K, 2678.0 °F)
• Classification: Rare Earth
• Crystal Structure: Hexagonal
• Density: 8.54g/cm3
• Color: Silver
• Boiling point: 2873 K (2600 °C, 4712 °F)
• Density (near r.t.): 8.79 g/cm³
• 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 Sheet Specifications

Holmium Sheet Application

Holmium sheet 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.