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 |
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
|
Form |
Characteristic |
|
Powder |
< 75 microns |
|
Granules |
1 – 5 mm |
|
Shot |
1 – 5 mm |
