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1.12356

Sigma-Aldrich

Tellurium dioxide

99.5+

Synonym(s):

Tellurium dioxide, Tellurium(IV) oxide

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About This Item

Empirical Formula (Hill Notation):
O2Te
CAS Number:
7446-07-3
Molecular Weight:
159.60
MDL number:
MFCD00011263
UNSPSC Code:
12352303
EC Index Number:
231-193-1
NACRES:
NA.22

Quality Level

200

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

mp

733 °C

density

6.02 g/cm3 at 20 °C

storage temp.

no temp limit

InChI

1S/O2Te/c1-3-2

InChI key

LAJZODKXOMJMPK-UHFFFAOYSA-N

Application


  • Facile sonochemical synthesis of tellurium and tellurium dioxide nanoparticles: This study presents a method for synthesizing tellurium nanostructures by reducing TeCl4 to Te using ultrasonic irradiation in methanol, also exploring the oxidation process to produce tellurium dioxide (Arab, Mousavi-Kamazani, 2017).

  • Ultrathin tellurium dioxide: emerging direct bandgap semiconductor: This article discusses the properties of monolayer tellurium dioxide as a new 2D semiconducting oxide, highlighting its direct bandgap and high mobility, which are significant for various applications (Guo et al., 2018).


Analysis Note

Assay (gravimetrically): ≥ 99.5 %
Identity (ICP-OES): passes test

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

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’.

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