Samarium , 99.9%metalsbasis, ≥200 , 7440-19-9

Synonym(s):
Samarium

CAS NO.：7440-19-9

Empirical Formula: Sm

Molecular Weight: 150.36

MDL number: MFCD00011233

EINECS: 231-128-7

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)