little doctor
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How we can separate TeO2 from SiO2 ? 
Separating TeO2 from SiO2 - Chemistry Tips
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The specific gravity of TeO2 is 5.9. Alpha quartz is the densest form of silica and has a SG of 2.648.
Try using bromoform (SG 2.88). Silica will float and TeO2 will sink.
Try using bromoform (SG 2.88). Silica will float and TeO2 will sink.
little doctor
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chemisttree said:
what about using HCl
TeO2 dissolves in HCl
but SiO2 not
?
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If you want to make TeCl4, try HCL.