Description
Selenium (Se)
1, Physical character:
Atomic Weight: *8.*6
Electronegative: 2.*5
Density: ?=4.*1 g·cm?3
Melting Point: **1 °C
Boiling Point: **5 °C
2, Specification:
High Purity Selenium:
Se**5 Grade *9.**9. The content of
Selenium is above *9.**9%. The total content of Ag, Al, Bi, Cd, Cu,
Fe, In, Mg, Ni, Pb, Sb, Te is bellow *0 ppm;
Uitra Purity Selenium:
Se**6 Grade *9.***9. The content of
Selenium is above *9.***9%. The total content of Ag, Al, Bi, Cd,
Cu, Fe, In, Mg, Ni, Pb, Sb, Te is bellow 1 ppm.
3, Physical Size:
Virgulate, 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.
