Element category: lanthanide
Samarium is a silvery metal belonging to the lanthanide group of the periodic table. It slowly oxidizes at room temperature and has a relatively stable oxidation state like europium.
Samarium was discovered in 1879 and named after the mineral samarskite from which it was isolated. Samarium is a chemical element with symbol Sm and atomic number 62.It is a hard silvery metal which easily oxidizes in air. Like zinc, samarium is a rare earth metal which has the similar hardness and density to zinc. amarium is paramagnetic at room temperature.
The main application of samarium is in samarium-cobalt magnets (SmCo5 or Sm2Co17 magnets), which are strong permanent magnets only second to neodymium magnets. It is also used as a catalyst in certain organic reactions.
Samarium oxide (Sm2O3), or samaria, is an important samarium compound of samarium element. It is often added to glass and ceramic to absorb infrared radiation.
86-0731-89578196 
