Neodymium is a chemical element with the symbol Nd and atomic number 60. Neodymium belongs to the lanthanide series and is a rare-earth element. It is a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.
Phase at STP： solid
Melting point： 1297 K (1024 °C, 1875 °F)
Boiling point： 3347 K (3074 °C, 5565 °F)
Density (near r.t.)： 7.01 g/cm3
when liquid (at m.p.)： 6.89 g/cm3
Heat of fusion： 7.14 kJ/mol
Heat of vaporization： 289 kJ/mol
Molar heat capacity： 27.45 J/(mol·K)
Neodymium compounds were first commercially used as glass dyes in 1927, and they remain a popular additive in glasses.
Another important use of neodymium is as a component in the alloys used to make high-strength neodymium magnets—powerful permanent magnets.