| Identification | |
| Name: | Tellurium dioxide |
| Synonyms: | Telluria;Tellurium(IV) oxide;Tellurium oxide (TeO2); |
| CAS: | 7446-07-3 |
| EINECS: | 231-193-1 |
| Molecular Formula: | TeO2 |
| Molecular Weight: | 159.60 |
| InChI: | InChI=1S/O2Te/c1-3-2 |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 3284 |
| Melting Point: | 733 ºC |
| Boiling Point: | 1245 ºC |
| Density: | 5.67 |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents. |
| Water Solubility: | insoluble |
| Solubility: | insoluble |
| Appearance: | white crystalline powder |
| Specification: |
Tellurium dioxide with CAS registry number of 7446-07-3 is a solid oxide of tellurium which is encountered in two different forms, the yellow orthorhombic mineral tellurite, β-Tellurium dioxide , and the synthetic, colourless tetragonal (paratellurite), α-Tellurium dioxide , highly insoluble in water and soluble in concentrated sulfuric acid. It can act both as an acid or as a base due to its an amphoteric substance. It is incompatible with strong acids and strong oxidizing agents. |
| Report: |
Reported in EPA TSCA Inventory. |
| Packinggroup: | II |
| Storage Temperature: | Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| Usage: | Used as an acousto-optic material. |
| Safety Data | |
| Hazard Symbols | |
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