Cadmium sulfide CdS +99.999% Cadmium telluride (CdTe)1, Physical character:Atomic ... of Ag, Al, As, Bi, Cu, Fe, Mg, Ni, Pb & Zn is bellow 10 ppm;CdTe-06 Grade 99.9999. The ... of Ag, Al, As, Bi, Cu, Fe, Mg, Ni, Pb & Zn is bellow 1ppm;3, Physical Size:Lump, Powder.4, Usage ...