Physical character: 2 Tellurium (Te) Atomic Weight: 127.60 Electronegative: .01 Density: ¦Ñ=6.25 g/cm3 Melting Point: mp: 452 ℃ Boiling Point: bp: 1390 ℃ 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 & 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 & 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 & 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 ***ector etc. 5, Packing: It is packed with dacron film, then covered with a sealed plastic film bag or vacuum sealed in a glass ampule.
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