Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

204552

Sigma-Aldrich

Tellurium dioxide

99.995% trace metals basis

Synonym(s):

Telluria, Tellurium (IV) oxide, Tellurium oxide

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
TeO2
CAS Number:
7446-07-3
Molecular Weight:
159.60
EC Number:
231-193-1
MDL number:
MFCD00011263
UNSPSC Code:
12352303
PubChem Substance ID:
24852276
NACRES:
NA.23

Assay

99.995% trace metals basis

mp

733 °C (lit.)

density

5.67 g/mL at 25 °C (lit.)

SMILES string

O=[Te]=O

InChI

1S/O2Te/c1-3-2

InChI key

LAJZODKXOMJMPK-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

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.

Signal Word

Danger

Hazard Classifications

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

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
R Balda et al.
Optics express, 17(11), 8781-8788 (2009-05-26)
In this work, we report the near-infrared emission properties of Tm(3+)-Er(3+) codoped tellurite TeO(2)-WO(3)-PbO glasses under 794 nm excitation. A broad emission from 1350 to 1750 nm corresponding to the Tm(3+) and Er(3+) emissions is observed. The full width at
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
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
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
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service