... °CBoiling Point: bp: 1390 °CBandwidth: 0.35 eV2, Specification:High Purity Tellurium:Te-05 Grade 99.999. The content of Tellurium is above ... , Cu, Fe, Mg, Ni, Pb, Se, Si & Zn is bellow 1 ppm;Uitra High Purity Tellurium:Te-07 Grade 99.99999. The content of ... , Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 0.1 ppm.3, Physical Size:Lump, Ingot, Powder.4, Usage:It is ...