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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

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

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

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.

PRTR

Class I Designated Chemical Substances

FSL

Group 2: Flammable solids
Metal powder
Hazardous rank II
1st combustible solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

266418-500G:4548173934532
266418-25G:4548173934525
266418-BULK:
266418-100G:4548173934518
266418-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW7344
MKCT2800
MKCQ5416
MKCQ1927
MKCM6793

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Khan, R.H. et al.
Synthetic Communications, 27, 2193-2193 (1997)
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)
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
Katja C Nowack et al.
Nature materials, 12(9), 787-791 (2013-06-19)
The quantum spin Hall (QSH) state is a state of matter characterized by a non-trivial topology of its band structure, and associated conducting edge channels. The QSH state was predicted and experimentally demonstrated to be realized in HgTe quantum wells.
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