733482

Bismuth(III) telluride

powder, −325 mesh, 99.99% trace metals basis

• Synonym(s): Bismuth sesquitelluride, Bismuth telluride, Dibismuth tritelluride
• Linear Formula: Bi₂Te₃
• CAS Number: 1304-82-1
• Molecular Weight: 800.76
• EC Number: 215-135-2
• MDL number: MFCD00014201
• UNSPSC Code: 12352300
• PubChem Substance ID: 329764821
• NACRES: NA.23

Properties

• assay: 99.99% trace metals basis
• form: powder
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• particle size: −325 mesh
• mp: 573 °C; 585 °C (lit.)
• density: 7.642 g/mL at 25 °C (lit.)
• greener alternative category: Enabling,
• SMILES string: [Te]=[Bi][Te][Bi]=[Te]
• InChI: 1S/2Bi.3Te
• InChI key: GUYIRKJSQUOSJV-UHFFFAOYSA-N

Description

General description

Bismuth(III) telluride (Bi₂Te₃) is a thermoelectric material, which acts as a topological insulator: a quantum material with an insulating bulky gap and gapless edge. It forms thin films by different techniques, which include chemical method, electrodeposition and molecular jet method.

The binary chalcogenide, bismuth(III) telluride occurs as mineral tellurobismuthite in nature. 1-2

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application

Bi₂Te₃ can be used for a saturable absorber in a variety of photo-optic applications, which include pulse fiber lasers.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302 + H312 + H332,H315,H319,H335
• pcodes: P261 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable