Selenium Powder
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2.Free sample is available.
Pure selenium powder (Se)
Physical character:
Atomic Weight: 78.96
Electronegative: 2.55
Density: ρ=4.79 g·cm−3
Melting Point: 221 °C
Boiling Point: 685 °C
CHEMICAL COMPONENT % | |||
Se | ≥99.99 | Pb | < 0.0001 |
Cu | < 0.0005 | N | < 0.0001 |
Hg | < 0.0001 | Ni | < 0.0002 |
As | < 0.0001 | S | < 0.0001 |
Sb | < 0.0006 | Ne | < 0.0005 |
Te | < 0.0001 | C | < 0.0003 |
Fe | < 0.0001 | Sn | < 0.0004 |
Bi | < 0.0008 | O | < 0.0001 |
Application:
It is mainly used in the preparation of the material of the selenium drum, photoelectric material, electrostatic photogragh and other materials of optical instrument.