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86370

Sigma-Aldrich

Tellurium dioxide

≥97.0%

Sinônimo(s):

Telluria, Tellurium oxide

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About This Item

Fórmula linear:
TeO2
Número CAS:
7446-07-3
Peso molecular:
159.60
Número CE:
231-193-1
Número MDL:
MFCD00011263
Código UNSPSC:
12352303
ID de substância PubChem:
57653113
NACRES:
NA.23

Nível de qualidade

100

Ensaio

≥97.0%

forma

powder

pf

733 °C (lit.)

densidade

5.67 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

O=[Te]=O

InChI

1S/O2Te/c1-3-2

chave InChI

LAJZODKXOMJMPK-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

TeO2 can be potentially used in medical imaging and industrial monitoring processes.

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B

Código de classe de armazenamento

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number
BCCH0107
BCCF2927
BCCC5398
BCCC3688
BCBZ4629

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Ultrathin tellurium dioxide: emerging direct bandgap semiconductor with high-mobility transport anisotropy
Guo S, et al.
Nanoscale, 10(18), 8397-8403 (2018)
Gamma radiation-induced changes in the electrical and optical properties of tellurium dioxide thin films
Arshak K and Korostynska O
IEEE Sensors Journal, 3(6), 717-721 (2003)
Sankha Chattopadhyay et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 68(10), 1967-1969 (2010-05-18)
A simple and inexpensive ion-exchange chromatography method for the separation of medically useful no-carrier-added (nca) iodine radionuclides from bulk amounts of irradiated tellurium dioxide (TeO(2)) target was developed and tested using (131)I. The radiochemical separation was performed using a very
Garima Tripathi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 71(2), 486-489 (2008-03-14)
The energy transfer in Er3+: Sm3+ codoped binary TeO2-Li2O (TLO) glass has been studied using 532 nm laser radiation on the basis of fluorescence intensity and the lifetime measurements. It is observed that the trace of erbium ion can be
G Bilir et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 83(1), 314-321 (2011-09-20)
TeO(2)-CdF(2)-WO(3) glasses with various compositions and Er(3+) concentrations were prepared by conventional melting method. Their optical properties were studied by measuring the absorption, luminescence spectra and the decay patterns at room temperature. From the optical absorption spectra the Judd-Ofelt parameters
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