Tellurium (Te) +99.99% Tellurium (Te)1, Physical character:Atomic Weight: 127.60Electronegative: 2 ... °CBandwidth: 0.35 eV2, Specification:High Purity Tellurium:Te-05 Grade 99.999. The content of Tellurium is ... Si & Sn is bellow 10 ppm;Uitra Purity Tellurium:Te-06 Grade 99.9999. The content of Tellurium is ... Zn is bellow 1 ppm;Uitra High Purity Tellurium:Te-07 Grade 99.99999. The content of Tellurium is ...