Selenium (Se)
1, Physical character:
Atomic Weight: 78.96
Electronegative: 2.55
Density: p=4.81 g·cm-3
Melting Point: 221 ℃
Boiling Point: 685 ℃
2, Specification:
High Purity Selenium:
Se-04 Grade 99.99. The content of Selenium is above 99.99%. The total content of Ag, Al, Bi, Cd, Cu, Fe, In, Mg, Ni, Pb, Sb, Te is bellow 100 ppm;
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 bellow 10 ppm;
Uitra Purity Selenium:
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 bellow 1 ppm.
3, Physical Size:
Granule, Powder.
4, Usage:
It is mainly used in the preparation of the material of the selenium drum, photoelectric material, electrostatic photogragh and other materials of optical instrument.
5, Packing:
It is packed with dacron film, then covered with a sealed plastic film bag or vacuum sealed in a polyethylene bottle.
