Tellurium dioxide
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| Name | Tellurium dioxide / Tellurium oxide |
| CAS number | 7446-07-3 |
| Chemical formula | Teo 2 |
The tellurium dioxide compound is a crystalline solid. It occurs in two modifications, as a result of which the crystals have a different color :
- α-TeO 2 - colorless;
- β-TeO 2 - yellow.
In the molten state, it is a red liquid. Insoluble in water, but soluble in acids and alkalis .
Tellurium dioxide is used in the production of glass with high refractive indices and as an acousto-optic material .