Tellurium dioxide
ALDRICH/86370 - ≥97.0%
Synonym: Telluria; Tellurium oxide
CAS Number: 7446-07-3
Empirical Formula (Hill Notation): O2Te
Molecular Weight: 159.60
EC Number: 231-193-1
MDL Number: MFCD00011263
Linear Formula: TeO2
Product Type: Chemical
| assay | ≥97.0% |
| density | 5.67 g/mL at 25 °C (lit.) |
| form | powder |
| InChI | 1S/O2Te/c1-3-2 |
| InChI key | LAJZODKXOMJMPK-UHFFFAOYSA |
| mp | 733 °C (lit.) |
| Quality Level | 100  |
| SMILES string | O=[Te]=O |
| Application: | TeO2 can be potentially used in medical imaging and industrial monitoring processes. |
| General description: | Tellurium dioxide (TeO2) is a ceramic material that can be used as a semiconducting oxide. It has a wide band gap and high mobility as determined by density functional theory (DFT) calculations. In bulk quantity, it exists in two polymorphs which include tetragonal α-TeO2 and orthorhombic β-TeO2. |
| Packaging: | 50, 250 g in poly bottle |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H317 - H332 - H360D - H411 |
| Precautionary statements | P202 - P273 - P280 - P302 + P352 - P304 + P340 + P312 - P308 + P313 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97.0% |
| mp | 733 °C (lit.) |
| Density | 5.67 g/mL at 25 °C (lit.) |
| UNSPSC | 12352303 |