Samarium
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| Name | Samaria / Samarium |
| CAS number | 7440-19-9 |
| Chemical formula | sm |
Samarium is a chemical element with atomic number 62. It belongs to the lanthanide group .
Metal samarium resembles lead in appearance, and zinc in mechanical properties .
Samarium is a highly active metal. It slowly oxidizes in air, first becoming covered with a dark film of trivalent oxide Sm 2 O 3 and then completely crumbling into yellow powder .
Application area
Samarium is widely used in the production of heavy-duty permanent magnets (samarium alloys with other metals are used) .
Samarium is also used to control nuclear reactors .
In the production of color televisions and cell phones, samarium is used as a phosphor activator .
Ultrapure samarium oxide is used in microelectronics as a dielectric in the production of silicon MIS varicaps .
Application of samarium compounds :
- Samarium telluride is used as a thermoelectric material;
- Samarium monosulfide is one of the best strain sensitive materials;
- Samarium oxide is used to obtain special luminescent and infrared-absorbing glasses;
