Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

254266

Sigma-Aldrich

Lead(II) telluride

greener alternative

99.998% trace metals basis

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
PbTe
CAS Number:
1314-91-6
Molecular Weight:
334.80
EC Number:
215-247-1
MDL number:
MFCD00016274
UNSPSC Code:
26111700
PubChem Substance ID:
24855370
NACRES:
NA.23

Assay

99.998% trace metals basis

form

crystals and lumps

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

905 °C (lit.)

density

8.164 g/mL at 25 °C (lit.)

greener alternative category

, Enabling

SMILES string

[Te]=[PbH2]

InChI

1S/Pb.Te

InChI key

OCGWQDWYSQAFTO-UHFFFAOYSA-N

General description

Lead telluride (PbTe) has a cubic rocksalt crystal structure which undergoes transition at high pressures to an orthorhombic structure.1 PbTe is a thermoelectric material, oxidation in air has been reported. 2
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Lead(II) telluride (PbTe) is a narrow bandgap semiconductor with good electrical properties. It is a thermoelectric material with thermal conductivity of ~2 Wm−1K−1 at 300 K, which can be used in thermoelectric power generation and energy conversion.

Packaging

Packaged in glass bottles

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Repr. 1A - STOT RE 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 2

1 of 2

Sodium tellurite −100 mesh, 99%

Sigma-Aldrich

400688

Sodium tellurite

Silver nanowires diam. × L 200  nm × 10 μm, 0.5% (isopropyl alcohol suspension)

Sigma-Aldrich

778095

Silver nanowires

Microscopic mechanism of low thermal conductivity in lead telluride
Shiga T, et al.
Physical Review. B, Condensed Matter and Materials Physics, 85(15), 155203-155203 (2012)
The effects of the size and the doping concentration on the power factor of n-type lead telluride nanocrystals for thermoelectric energy conversion
Fang H, et al.
Nano Letters, 14(3), 1153-1157 (2014)
Lead telluride as a thermoelectric material for thermoelectric power generation
Dughaish ZH
Physica B: Condensed Matter, 322(1-2), 205-223 (2002)
Far infrared high-performance lead telluride-based photodetectors for space-born applications
Chesnokov SN, et al.
Infrared Physics &Technology, 35(1), 23-31 (1994)

Articles

Materials for Advanced Thermoelectrics

Thermoelectric materials comprise a wide range of solid compounds distinguished by their ability to convert thermal and electrical energy.

Silicides: Promising Thermoelectrics

Higher transition metal silicides are ideal for anisotropic thermoelectric conversion due to their Seebeck coefficient anisotropy and mechanical properties.

Silicides: Promising Thermoelectrics

Higher transition metal silicides are ideal for anisotropic thermoelectric conversion due to their Seebeck coefficient anisotropy and mechanical properties.

Silicides: Promising Thermoelectrics

Higher transition metal silicides are ideal for anisotropic thermoelectric conversion due to their Seebeck coefficient anisotropy and mechanical properties.

See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service