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204552

Sigma-Aldrich

Tellurium dioxide

99.995% trace metals basis

Synonyme(s) :

Telluria, Tellurium (IV) oxide, Tellurium oxide

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About This Item

Formule linéaire :
TeO2
Numéro CAS:
7446-07-3
Poids moléculaire :
159.60
Numéro CE :
231-193-1
Numéro MDL:
MFCD00011263
Code UNSPSC :
12352303
ID de substance PubChem :
24852276
Nomenclature NACRES :
NA.23

Pureté

99.995% trace metals basis

Pf

733 °C (lit.)

Densité

5.67 g/mL at 25 °C (lit.)

Chaîne SMILES 

O=[Te]=O

InChI

1S/O2Te/c1-3-2

Clé InChI

LAJZODKXOMJMPK-UHFFFAOYSA-N

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Application

Tellurium dioxide can be used:
  • As a seed layer to fabricate hole-extracting electrodes in an organic photovoltaic device. The addition of TeO2 enhances the optical transmittance of the electrode.
  • As a starting material to prepare tellurite glasses for gamma radiation shielding and other optical applications.

Pictogrammes

Health hazardExclamation markEnvironment
GHS08,GHS07,GHS09

Mention d'avertissement

Danger

Mentions de danger

H317,H332,H360Df,H362,H411

Classification des risques

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

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Nirupama Rai et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 76(3-4), 311-314 (2010-05-01)
Frequency upconversion in triply ionized praseodymium doped glass with composition TeO(2)-Na(2)O (TNO) system under the excitation with a laser light from a dye laser has been reported and the covalency, bonding parameter, nephalauxetic effect which provides the information about the
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
Edmond P F Lee et al.
The Journal of chemical physics, 121(7), 2962-2974 (2004-08-05)
Ab initio calculations have been carried out on low-lying singlet and triplet states of TeO2 at different levels of theory with basis sets of up to the augmented-polarized valence-quintuple-zeta quality. Equilibrium geometrical parameters, harmonic vibrational frequencies, and relative electronic energies
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