Samarium Metal is primarily utilized in the production of Samarium-Cobalt (Sm2Co17) permanent magnets with one of the highest resistances to demagnetization known. High purity Samarium Metal is also used in making speciality alloy and sputtering targets.
Formula Sm
CAS No. 7440-19-9 Molecular Weight 150.36
Appearance Silvery
Stability Moderately reactive in air
Ductibility Good
Standard Specifications
Grade
99.999%
99.99%
99.9%
99%
CHEMICAL COMPOSITION
Sm/TREM (% min.)
99.99
99.99
99.9
99
TREM (% min.)
99.9
99.5
99.5
99
Rare Earth Impurities ( in TREM, % max.)
La
Ce
Pr
Nd
Eu
Gd
Y
0.001
0.001
0.005
0.005
0.005
0.005
0.001
0.005
0.005
0.005
0.005
0.005
0.005
0.001
0.01
0.01
0.03
0.03
0.03
0.03
0.03
0.05
0.05
0.05
0.05
0.05
0.05
0.05
Non-Rare Earth Impurities ( % max.)
Fe
Si
Ca
Al
Mg
Mn
O
C
0.001
0.003
0.003
0.003
0.001
0.001
0.015
0.01
0.001
0.005
0.005
0.005
0.001
0.005
0.03
0.015
0.01
0.01
0.01
0.02
0.001
0.01
0.03
0.015
0.015
0.015
0.015
0.03
0.001
0.01
0.05
0.03
62
Sm
150.36
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