Samarium is a chemical element with symbol Sm and atomic number 62.
- Samarium’s main use is in samarium-cobalt alloy magnets for headphones, small motors and pickups for some electric guitars. These magnets have a high resistance to demagnetization. They keep their ferromagnetism at temperatures up to 700 oC. As a result of their ability to operate at high temperatures, SmCo magnets are used in precision-guided weapons.
- Samarium oxide (samaria) is used as a catalyst for the dehydration and dehydrogenation of ethanol. Samarium oxide is also used in infrared absorbing glass.
- Radioactive 153Sm is used in the treatment of cancers.
- Samarium is also used as an absorber in nuclear reactors
- The radioactive isotope samarium-153 is the major component of the drug samarium (153Sm) lexidronam (Quadramet), which kills cancer cells in the treatment of lung cancer, prostate cancer, breast cancer and osteosarcoma.
- Samarium is considered to be moderately toxic.
Source: Wikipedia, https://en.wikipedia.org/wiki/Samarium