Uitra Purity Selenium:
Se 6N 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.
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.