Element Search
Samarium (62Sm150.36)
[7440-19-9]
[7440-19-9]
Select a form or compound to view products.
Elemental Form| A rare earth metal of the lanthanide group, samarium does not occur free in nature, but is found with other rare earths in many minerals. Samarium is a lustrous, brittle, silvery-yellow metal that tarnishes in air. It is similar to iron in hardness. Samarium and cobalt, combined in SmCo5, have been used to make a permanent magnet with the highest resistance to demagnetization of any known material. | ||||
| Melting Point | 1072°C | Boiling Point | 1794°C | |
| Density | 7.52g/cm3 | Specific Heat @ 25°C | 0.042cal/g°C | |
| Heat of Fusion | 2.1k-cal/g-atom | Heat of Vaporization | 46k-cal/g-atom | |
| Atomic Volume | 19.9W/D | First Ionization Energy | 129K-cal/g-mole | |
| Electronegativity | 1.2Pauling's | Covalent Radius | 1.62Angstroms | |
| Electrical Resistivity @ 298°C | 105.0µΩ-cm | Crystal Structure | Rhombohedral | |
| Compressibility | 3.34x10-6cm2/kg | Thermal Neutron Cross Section | 5500barns/atom | |
| Magnetic Moment | 1.74Bohr magnetons | Magnetic Susceptibility | 1,275x10-6emu/mole | |
| Tensile Strength | 18,000psi | Yield Strength | 16,200psi | |
| Transformation Temperature | 924°C | Standard Electrode Potential | +2.2volts | |
