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Sm
Samarium
Atomic no.:
62
Atom. weight: 150.36
Density: 7
Class:
Rare earth metal
Melting point: 1074°C
Boiling point: 1794°C
Colour: Array
   
Discoverer: Paul-Émile Lecoq de Boisbaudran
Place: Paris, France
Year: 1879

Samarium was discovered in 1879 by P.E. Lecoq and was named after the mineral "Samarskite" which, in turn, was named after the Russian mine official, Colonel V.E. Samarsky. A lanthanide group element, samarium is a silvery-white metal which is found in the minerals allanite, cerite, gadolinite and its namesake, samarskite; it has an abundance on earth of 7.9 ppm. It is relatively stable in dry air but oxidises on contact with moisture. Applications of the metal are limited, but it finds uses in the glass, ceramics and electronics industries and also in the manufacture of permanent magnets (when combined with cobalt).

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 Samarium 3+ doped fluorescent glass bead NEW!  Art. Nr. 004859  
Samarium 3+ doped fluorescent glass bead NEW!
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Glass bead doped with 1% Samarium(III) oxide - NEW! Orange fluorescence!

Size about 10mm - weight ~ 1g

Nice optical glass bead. Each one handmade in our lab. Strong fluorescence with a peak @ 597nm

  • White at normal light
  • Red Orange under ultraviolet light (money checker etc.)

Please do not use common UV LEDs, they produce wavelengths above 390 nm and are not suitable! Blacklight tubes work best! The UV lamp used for the photos has a wavelength of 365nm

Amount: 1 St. / 1 pc.
Purity : --
Packing: PE foil
30.00
- tax free

Availability: 4 in stock

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