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Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series
S 0156 (OTTOKEMI) Samarium pieces, sublimed dendritic, 99.9% Cas 7440-19-9 - used as a catalyst in organic chemistry, a pyrophoric metal in lighter flints, and a core in carbon arc-lamp electrodes.