| Formula / Notation | Sm |
|---|---|
| CAS Number | 7440-19-9 |
| Molecular Weight | 150.36 |
| Melting Point | 1072.0 |
| Boiling Point | 1794.0 |
| Density | 7.52 |
| Solubility | Insoluble in water |
| Appearance | Moderately hard, silvery, lustrous metal |
| Also Known As | Sm, samarium metal |
| Category | Elements |
What is Samarium?
Samarium is a moderately hard, silvery rare earth metal, atomic number 62. Used in SmCo permanent magnets (samarium cobalt), which retain magnetism at higher temperatures than NdFeB magnets. Sm-149 is an important neutron absorber.
Formula & Notation
IUPAC Name: Samarium
Other Names / Synonyms: Sm, samarium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 1072.0 |
| Boiling Point | 1794.0 |
| Density | 7.52 |
| Molecular Weight | 150.36 |
| Solubility | Insoluble in water |
| Appearance | Moderately hard, silvery, lustrous metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Samarium is a moderately hard, silvery rare earth metal, atomic number 62. Used in SmCo permanent magnets (samarium cobalt), which retain magnetism at higher temperatures than NdFeB magnets. Sm-149 is an important neutron absorber.
SmCo permanent magnets (high-temperature stability - jet engines, motors in high-temp environments). Sm-153 cancer treatment (bone metastases). Neutron absorber in nuclear reactors. Infrared-absorbing glass. Samarium iodide (SmI2) as reductant in organic synthesis.
Samarium metal: combustible powder. Samarium compounds: low to moderate toxicity. Sm-153: radioactive - radiation precautions required. Handle dust with respiratory protection. Limited data on chronic exposure.
The formula or notation for Samarium is: Sm