· CAS:7440-60-0

· Molecular Formula: Ho

· Purity:99.9%

· Specification:- 100 mesh / - 200 mesh 

· EINECS No.:231-169-0

· Hazardous Class:Class 4.1

UN No.:UN3089

Package Class:Vacuum Bag or with argon protection sealed

Holmium Metal (Ho)-Powder

Characteristic

Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare-earth element. Like dysprosium, it is a metal that absorbs neutrons produced by nuclear fission.Stable in dry air at room temperature, easily oxidized in humid air and high temperature.

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)

Chemical Composition 

 Application

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.Holmium-doped fibers can be used to make fiber lasers, fiber amplifiers, fiber sensors, etc.