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Selenium Metal (Se)-Powder

  • 7782-49-2
  • Se
  • 3400PD
  • 99.9%-99.9999%
  • - 100 mesh.
  • 231-957-4
  • Class 9
  • UN3077
  • PG III
Availability:


Selenium is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.


Properties:

Melting point 494 K (221 °C, 430 °F)

Boiling point 958 K (685 °C, 1265 °F)

Density (near r.t.) gray: 4.81 g/cm3/alpha: 4.39 g/cm3/vitreous: 4.28 g/cm3



Application


The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells. Applications in electronics, once important, have been mostly replaced with silicon semiconductor devices. Selenium is still used in a few types of DC power surge protectors and one type of fluorescent quantum dot.


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