Tellurium Dioxide
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QUALITY INDICATOR
Characteristic | Value |
---|---|
Appearance | Black powder |
Bulk density | 0,7 -1,2 g/cm3 |
Melting temperature | 733 °C |
Class | Purity | Max Impurities(ppm) | The form | Packaging |
---|---|---|---|---|
5N | 99.999% | 10 | Powder | Polyester bags |
TeO2
CAS Number: 7446-07-3
It was first found in 1782 in the gold-bearing ores of Transylvania by the mining inspector Franz Josef Muller (later Baron von Reicenstein), in the territory of Austria-Hungary.
In 1798, Martin Heinrich Klaproth singled out tellurium and determined its most important properties. The name comes from the Latin tellus, the genitive telluris, Earth.
Примеси
Al, B, Bi, Ca, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Si, Sn, Zn
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