Tellurium Barren

Tellurium (Te) 1, Physical character: Atomic Weight: 127.60 Electronegative: 2.01 Density: ρ=6.25 g/cm3 Melting Point: mp: 452 °C Boiling Point: bp: 1390 °C Bandwidth: 0.35 eV 2, Specification: High Purity Tellurium: Te-05 Grade 99.999. The content of Tellurium is above 99.999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Sn is bellow 10 ppm; Uitra Purity Tellurium: Te-06 Grade 99.9999. The content of Tellurium is above 99.9999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Zn is bellow 1 ppm; Uitra High Purity Tellurium: Te-07 Grade 99.99999. The content of Tellurium is above 99.99999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 0.1 ppm. 3, Physical Size: Lump, Ingot, Powder. 4, Usage: It is mainly used in the manufacture of II-VI compound semiconductor, thermoelectric converting element, refrigerating element, piezocrystal and infrared detector etc. 5, Packing: It is packed with dacron film, then covered with a sealed plastic film bag or vacuum sealed in a glass ampule.