SELENIUM

8857486-14026371

 

METACONCEPT Group supplies many different high quality minor metals and their alloys in different forms: ingots, granules, lumps, turnings, powder…

Among these minor metals, we supply selenium.

Main forms:

  • Granules
  • Powder
  • Shot

Nomenclature: Selenium
Atomic weight: 78.96
CAS Number: 7782-49-2
EC Number: 231-957-4

 

GRADE SPECIFICATIONS

Pure selenium metal purity 99.5 % minimum.

Purity: 99.5%

Max Impurity (1) (ppm): 5000

Form: Powder or Granules

Packaging: 25 kg / 250 kg in a plastic bag / in a metal drum

(1) IMPURITIES

All values are typical.

 

Element

Value

As

<50 ppm

Bi

<100 ppm

Cd

<20 ppm

Cu

<50 ppm

Fe

<500 ppm

Ni

<50 ppm

Pb

<500 ppm

S

<500 ppm

Sb

<100 ppm

Sn

<10 ppm

Te

<50 ppm

Zn

<100 ppm

 

PROPERTIES

Characteristic

Value

Appearance

Powder or granules

Colour

Black/Gray

Stability

Agglomerates on standing

Crystal structure

Hexagonal

Crystalline density

4.8gcm-3

Melting point

221 ºC

Boiling point

685ºC

Shelf life

12 months unopened

 

Form

Characteristic

Powder

< 75 microns
< 150 microns
< 400 microns

Granules

1 – 5 mm
-0.71 mm + 0.15 mm
0.5 – 1.5 mm

Shot
(sphericlal granules)

1 – 5 mm

 

MAIN USES OF SELENIUM:

The selenium is used in:

  • Production of glass: selenium confers a red color to glass
  • Lead car battery manufacturing
  • Production of solar cells
  • Production of pigments
  • They are above the main applications