We are offering tellurium metal 99.99. Rose at wandatrade dot com specifications tellurium (te) metal ingots 1.purity:4n5, 5n, 6n, 7n 2.powder, shot, ingot, target 3.resources: own mine 4.test machine:icp-ms tellurium (te) 1, physical character: atomic weight: 127.60 electronegative: 2.01 density: ρ=6.25 gcm3 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.