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266418

Sigma-Aldrich

Tellurium

powder, −200 mesh, 99.8% trace metals basis

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

CHF 53.30

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

About This Item

Formula empirica (notazione di Hill):
Te
Numero CAS:
13494-80-9
Peso molecolare:
127.60
Numero CE:
236-813-4
Numero MDL:
MFCD00134062
Codice UNSPSC:
12141913
ID PubChem:
24856140
NACRES:
NA.23

CHF 53.30

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Livello qualitativo

100

Saggio

99.8% trace metals basis

Stato

powder

Resistività

5.8-33 μΩ-cm, 20°C

Dimensione particelle

−200 mesh

P. ebollizione

990 °C (lit.)

Punto di fusione

450 °C (lit.)

Densità

6.24 g/mL at 25 °C (lit.)

Stringa SMILE

[Te]

InChI

1S/Te
PORWMNRCUJJQNO-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

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]

Pittogrammi

Health hazardExclamation mark
GHS08,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H317,H332,H360Df,H362,H413

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
MKCW7344
MKCT2800
MKCQ5416
MKCQ1927
MKCM6793

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Biossido di tellurio

Khan, R.H. et al.
Synthetic Communications, 27, 2193-2193 (1997)
Guizhong Wang et al.
Optics express, 21(4), 4703-4708 (2013-03-14)
The octave-spanning spectrum was generated in a tellurite glass based microstructured fiber pumped by a 528 MHz repetition rate Yb:fiber ring laser without amplification. The laser achieved 40% output optical-to-optical efficiency with the output power of 410 mW. By adjusting
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
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)
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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