Tellurium

La description

Tellurium (Te) 1, Physical character: Atomic Weight: **7.*0 Electronegative: 2.*1 Density: ρ=6.*5 g/cm3 Melting Point: mp: **2 ℃ Boiling Point: bp: ***0 ℃ Bandwidth: 0.*5 eV 2, Specification: High Purity Tellurium: Te**5 Grade *9.**9. The content of Tellurium is above *9.**9%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Sn is bellow *0 ppm; Uitra Purity Tellurium: Te**6 Grade *9.***9. The content of Tellurium is above *9.***9%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 1 ppm; Uitra High Purity Tellurium: Te**7 Grade *9.****9. The content of Tellurium is above *9.****9%. 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 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.