how could you seperate tellurium dioxide, TeO2,from sio2?

2007-09-15 12:54:57 · 1 answers · asked by shery 1 in Science & Mathematics ➔ Chemistry

1 answers

Treat the mixture with NaOH solution. SiO2 is soluble in NaOH, but not very much, and not very fast. So the TeO2 would dissolve first, and you could filter the solution away.

TeO2(s) + SiO2(s) + 2NaOH(aq) ===> Na2TeO3(aq) + SiO2(s) + H2O

2007-09-15 13:53:47 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋

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