PRODUCT Properties
| Melting point: | 1074 °C (lit.) |
| Boiling point: | 1794 °C (lit.) |
| Density | 7.47 g/mL at 25 °C (lit.) |
| storage temp. | Store below +30°C. |
| form | powder |
| Specific Gravity | 7.4 |
| color | Silvery-gray |
| Resistivity | 91.4 μΩ-cm, 0°C |
| Water Solubility | Insoluble in water. |
| Sensitive | Air & Moisture Sensitive |
| Merck | 13,8425 |
| Exposure limits | ACGIH: TWA 2 ppm; STEL 4 ppm OSHA: TWA 2 ppm(5 mg/m3) NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) |
| CAS DataBase Reference | 7440-19-9(CAS DataBase Reference) |
| EPA Substance Registry System | Samarium (7440-19-9) |
Description and Uses
Samarium is easy to magnetize, but very difficult to demagnetize. This makes it ideal forthe manufacture of permanent magnets (SmCo5) that are part of the hard disks for computers.Samarium is also used as a neutron absorber in nuclear reactors, as well as for lasers andmetallurgical research. It makes up about 1% of the metals in misch metal, an alloy in cigarettelighter flints. It is also one of several rare-earths used in floodlights and carbon-arc lights usedby the motion picture industry. Samarium is used as a catalyst in several industries, includingthe dehydrogenation of ethanol alcohol.
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Warning |
| Hazard statements | H228-H261 |
| Precautionary statements | P210-P231+P232-P240-P241-P280-P370+P378 |
| Hazard Codes | F,R,Xn |
| Risk Statements | 11-15-33 |
| Safety Statements | 16-30-33 |
| RIDADR | UN 3089 4.1/PG 3 |
| WGK Germany | 3 |
| F | 1-10 |
| TSCA | Yes |
| HazardClass | 4.2 |
| PackingGroup | I |
| HS Code | 28053019 |
| Hazardous Substances Data | 7440-19-9(Hazardous Substances Data) |
