Technology, Patent, Market, Process, Consultancy, Product, Report,
- Samarium is a chemical
element with atomic number 62 and symbol Sm. it a hard, silvery
white metal of the lanthanide series.
- It has a bright silver
lustre as well as is reasonably stable in air. It ignites in air at
- It is one of the rare
earth elements used to make carbon arc lights which are used in the
motion picture industry for studio lighting and projector lights.
- It makes up about 1%
of Misch metal, a material that is used to make flints for lighters.
- This metal is
available commercially so it is not normally necessary to make it in
the laboratory, which is just and it is difficult to isolate as the
- It has several
isotopes, four of which are stable and several of which are
- Recently developed
samarium/cobalt magnets have the highest resistance to
demagnetisation of any material yet synthesised.
- It is used in making
alloys, pain killer medicines and that compounds created from
samarium are also used as catalysts.
- It is never found free
in nature, but in contained in many minerals, including monazite,
bastnasite and samarskite.
- The energy product of
samarium based permanent magnets is second to those based on
neodymium, iron, and boron, but the latter have much lower Curie
points than the samarium magnets and therefore are unsuitable for
applications above approximately 300 °C (570 °F).
Samarium compounds act as sensitizers for phosphors excited in the
infrared and samarium oxide is added to glass to absorb infrared
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