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Selenium (Se)

1. Advantage:

Oxygen-free Selenium

2. Physical character:

Atomic Weight: 78.96

Electronegative: 2.55

Density: ρ=4.81g·cm−3

Melting Point: 221℃

Boiling Point: 685℃

3. Specification:

Se-05 Grade 99.999. The content of Selenium is above 99.999%. The total content of Ag, Al, Bi, Cd, Cu, Fe, In, Mg, Ni, Pb, Sb, Te is below 10 ppm.

Se-06 Grade 99.9999. The content of Selenium is above 99.9999%. The total content of Ag, Al, Bi, Cd, Cu, Fe, In, Mg, Ni, Pb, Sb, Te is below 1 ppm.

4. Particle Size:

Powder: -100mesh; -200mesh

Granule: 1-3mm; 2-5mm

5. Packing:

Vacuum packing or Argon shield

6. Application:

It is mainly used in the manufacture of II-VI compound semiconductor: ZnSe, CdSe...; CIGS thin-film solar cells...