86370
Tellurium dioxide
≥97.0%
Synonym(s):
Telluria, Tellurium oxide
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About This Item
Linear Formula:
TeO2
CAS Number:
Molecular Weight:
159.60
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
231-193-1
MDL number:
Quality Segment
assay
≥97.0%
form
powder
composition
TeO₂
mp
733 °C (lit.)
density
5.67 g/mL at 25 °C (lit.)
application(s)
glass & ceramic
SMILES string
O=[Te]=O
InChI
1S/O2Te/c1-3-2
InChI key
LAJZODKXOMJMPK-UHFFFAOYSA-N
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.
Application
TeO2 can be potentially used in medical imaging and industrial monitoring processes.
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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