Tellurium dioxide
ALDRICH/243450 - ≥99%
Synonym: Tellurium(IV) 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
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This image depicts SKU: 243450-250G
This image depicts SKU: 243450-250G
| assay | ≥99% |
| 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: | Tellurium dioxide is used to prepare tellurium metal, telluric acid, and many tellurium salts. It may also be used in the preparation of Ag2Te nanoparticles. |
| General description: | Tellurium dioxide, also known as tellurium(IV) oxide, is a white, crystalline solid with a melting point of 1,130 °C and a boiling point of 1,850 °C. Tellurium dioxide is an important material in a number of applications, including as a catalyst in the synthesis of plastics resins, and pharmaceuticals, and as a component in tellurium-based alloys. Tellurium dioxide is typically made at high temperatures either by decomposition of tellurium(IV) chloride or tellurium(IV) sulfate in the presence of oxygen. |
| Packaging: | 250 g in poly bottle |
| Packaging: | 50 g in glass bottle |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H317 - H332 - H360D - H411 |
| Precautionary statements | P201 - 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 | ≥99% |
| mp | 733 °C (lit.) |
| Density | 5.67 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |