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266418

Sigma-Aldrich

Tellurium

powder, −200 mesh, 99.8% trace metals basis

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53.30 CHF
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25 G
53.30 CHF
100 G
152.00 CHF
500 G
580.00 CHF

About This Item

Formule empirique (notation de Hill) :
Te
Numéro CAS:
13494-80-9
Poids moléculaire :
127.60
Numéro CE :
236-813-4
Numéro MDL:
MFCD00134062
Code UNSPSC :
12141913
ID de substance PubChem :
24856140
Nomenclature NACRES :
NA.23

53.30 CHF

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Devis pour commande en gros

Niveau de qualité

100

Essai

99.8% trace metals basis

Forme

powder

Résistivité

5.8-33 μΩ-cm, 20°C

Taille des particules

−200 mesh

pb

990 °C (lit.)

Pf

450 °C (lit.)

Densité

6.24 g/mL at 25 °C (lit.)

Chaîne SMILES 

[Te]

InChI

1S/Te

Clé InChI

PORWMNRCUJJQNO-UHFFFAOYSA-N

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Catégories apparentées

Description générale

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.[1]

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H317,H332,H360Df,H362,H413

Classification des risques

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

Code de la classe de stockage

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificats d'analyse (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)
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.
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
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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