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266418

Sigma-Aldrich

Tellurium

powder, −200 mesh, 99.8% trace metals basis

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About This Item

Empirical Formula (Hill Notation):
Te
CAS Number:
13494-80-9
Molecular Weight:
127.60
EC Number:
236-813-4
MDL number:
MFCD00134062
UNSPSC Code:
12352300
PubChem Substance ID:
24856140
NACRES:
NA.23

Quality Level

100

Assay

99.8% trace metals basis

form

powder

resistivity

5.8-33 μΩ-cm, 20°C

particle size

−200 mesh

bp

990 °C (lit.)

mp

450 °C (lit.)

density

6.24 g/mL at 25 °C (lit.)

SMILES string

[Te]

InChI

1S/Te

InChI key

PORWMNRCUJJQNO-UHFFFAOYSA-N

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General description

Tellurium is anon-radioactive and heaviest member of the chalcogen family. It has a widerange of oxidation states, from -2 to +6. It is widely used in the fields ofmetallurgy and electronics.

Application

Tellurium can be used as a precursor to prepare:
  • Tellurium-based nanomaterials for semiconductor application, such as CdTe nanoparticles via solvothermal synthesis.
  • Quantum dot solutions for fluorometric determination of bioactive compounds.
  • Thermoelectricmaterials, such as Cu4Mn2Te4 by the melting-quenching-SPS method.
Tellurium, in combination with potassium hydroxide, mediates the quantitative pinacolization of aromatic carbonyl compounds.

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 4 - 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 2

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’.

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Khan, R.H. et al.
Synthetic Communications, 27, 2193-2193 (1997)
Zhe Liu et al.
Optics express, 21(6), 7799-7810 (2013-04-03)
ZnTe is an important p-type semiconductor with great applications as field-effect transistors and photodetectors. In this paper, individual ZnTe nanowires based field-effect transistors was fabricated, showing evident p-type conductivity with an effect mobility of 11.3 cm(2)/Vs. Single ZnTe nanowire based
Raymond J Turner et al.
Biotechnology advances, 30(5), 954-963 (2011-09-13)
Here, we overview the most recent advances in understanding the bacterial mechanisms that stay behind the reduction of tellurium oxyanions in both planktonic cells and biofilms. This is a topic of interest for basic and applied research because microorganisms are
Vijay P Singh et al.
Organic letters, 15(24), 6274-6277 (2013-11-28)
In an effort to improve the chain-breaking capacity of the natural antioxidants, an octyltelluro group was introduced next to the phenolic moiety in β- and δ-tocopherol. The new vitamin E analogues quenched peroxyl radicals more efficiently than α-tocopherol and were
Biomethylation of selenium and tellurium: microorganisms and plants.
Thomas G Chasteen et al.
Chemical reviews, 103(1), 1-25 (2003-01-09)
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