Sell Tellurium Dioxide TeO2 4N 99.99%, 5N 99.999%

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Tellurium Dioxide TeO2 4N 99.99%, 5N 99.999%
Purity:99.99%
Cu/Fe/Al/As/Si/Mg 10ppm each, Pb/Se 20ppm each
Purity:99.999%min
Cu/Al/Pb/Fe 0.5ppm max each
Cd 1.0ppm max
Packed in polyethylene bottle with sealed plastic bag out side