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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:
12141913
PubChem Substance ID:
24856140
NACRES:
NA.23

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

Health hazardExclamation mark
GHS08,GHS07

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)
Edward R T Tiekink
Dalton transactions (Cambridge, England : 2003), 41(21), 6390-6395 (2012-01-19)
Despite being disparaged for their malodorous and toxic demeanour, compounds of selenium, a bio-essential element, and tellurium, offer possibilities as therapeutic agents. Herein, their potential use as drugs, for example, as anti-viral, anti-microbial, anti-inflammatory agents, etc., will be surveyed along
E C Stangherlin et al.
Toxicology, 207(2), 231-239 (2004-12-15)
The effect of single maternal subcutaneous (s.c.) injection of 0.12 mg/kg diphenyl ditelluride, (PhTe)2, diluted in canola oil at days 6, 10 or 17 of gestation were evaluated in Wistar rats. The reduction of body weight gain was statistically significant
Hridyesh Kumar et al.
Carbohydrate polymers, 97(2), 327-334 (2013-08-06)
The present work describes synthesis of water soluble L-cysteine-functionalized CdTe quantum dots (QDs) with size tunable emission at different time intervals for chitosan based film. The characterization of the synthesized CdTe QDs-chitosan film was made by Fourier transform infrared (FTIR)
Adity Chopra et al.
Biosensors & bioelectronics, 44, 132-135 (2013-02-19)
Highly luminescent water soluble CdTe quantum dots (QDs) were synthesized and conjugated with anti-HbA1c antibody to generate specific nanobioprobe. A sandwich immunoassay model was employed using capture HbA1c antibody as a specific receptor molecule and the QD-labeled secondary antibody as
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