SELENIUM METAL
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 |
Granules | 1 – 5 mm |
Shot | 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