... , Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Sn is bellow 10 ppm;Uitra Purity Tellurium:Te-06 Grade 99.9999 ... , Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Zn is bellow 1 ppm;Uitra High Purity Tellurium:Te-07 Grade 99 ... , Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 0.1 ppm.3, Physical Size:Lump, Ingot, Powder.4 ... film bag or vacuum sealed in a glass ampule. Tellurium metal