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A7285412

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

Pack Size Price Stock Quantity
5G RMB48.00 In Stock
25G RMB150.40 In Stock
100G RMB570.40 In Stock
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Update time: 2022-07-08

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
color  Silvery-gray
Specific Gravity 7.4
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)

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
1-10
TSCA  Yes
HazardClass  4.2
PackingGroup  I
HS Code  28053019

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