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Merck
CN

435902

Tellurium dioxide

99.9995%

Synonym(s):

Telluria, Tellurium dioxide, Tellurium oxide, Tellurium(IV) oxide

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About This Item

Linear Formula:
TeO2
CAS Number:
7446-07-3
Molecular Weight:
159.60
UNSPSC Code:
12352300
PubChem Substance ID:
24867266
EC Number:
231-193-1
MDL number:
MFCD00011263

Key Documents

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InChI key

LAJZODKXOMJMPK-UHFFFAOYSA-N

InChI

1S/O2Te/c1-3-2

SMILES string

O=[Te]=O

assay

99.9995%

mp

733 °C (lit.)

density

5.67 g/mL at 25 °C (lit.)

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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)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
13324LC
01226AD
00822PG

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Qiu-Hua Nie et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 61(8), 1939-1943 (2005-05-03)
The new Er3+/Yb3+ co-doped 70TeO2-5Li2O-(25-x)B2O3-xGeO2 (x = 0, 5, 10, 15 fand 20 mol.%) glasses were prepared. The thermal stability, absorption spectra, emission spectra and lifetime of the 4I(13/2) level of Er3+ ions were measured and studied. The FT-IR spectra
Namrata Dewan et al.
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 55(3), 552-558 (2008-04-15)
The anomalous elastic properties of TeO2+x thin films deposited by rf diode sputtering on substrates at room temperature have been studied. The deposited films are amorphous, and IR spectroscopy reveals the formation of Te-O bond. X-ray photoelectron spectroscopy confirms the
Ganxin Chen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 72(4), 734-737 (2008-12-30)
We report on spectroscopic properties and energy transfer of Tm(3+)/Ho(3+)-codoped tungsten tellurite glasses for 1.47microm amplifier. Fluorescence spectra and the analysis of energy transfer indicate that Ho(3+) is an excellent codopant for 1.47microm emission. Comparing with other tellurite glasses, the
S J Madden et al.
Optics express, 17(20), 17645-17651 (2009-11-13)
We report on the fabrication and optical properties of the first very low loss nonlinear Tellurite planar rib waveguides ever demonstrated. A new reactive ion etch process based on Hydrogen as the active species was developed to accomplish the low
Xiang Shen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 61(13-14), 2827-2831 (2005-09-17)
Optical absorption and emission properties of the Er3+/Yb3+ codoped TeO2-WO3-Bi2O3 (TWB) glass has been investigated. The transition probabilities, excited state lifetimes, and the branching ratios have been predicted for Er3+ based on the Judd-Ofelt theory. The broad 1.5 microm fluorescence
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