Bismuth(III) telluride
Bismuth(III) telluride (CAS 1304-82-1), molecular formula Bi2Te3, is a high-purity chemical supplied by Tech Serve Solutions for metal & ceramic science applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- Bismuth sesquitelluride,Bismuth telluride,Dibismuth tritelluride

| Molecular weight | 800.76 |
|---|---|
| Linear formula | Bi2Te3 |
| Assay | 99.995% trace metals basis |
| Density | 7.642 g/mL at 25 °C(lit.) |
| Application | Bi2Te3, along with Sb2Te3 and other structurally analogous semiconductors, is widely regarded as one of the best materials for room-temperature thermoelectric devices. Bismuth(III) telluride is a key component of thermoelectric materials that have reached ZT values as high as 2.4 at room temperature. |
| Melting point | 585 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Bismuth(III) telluride?
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Bismuth(III) telluride (CAS 1304-82-1), molecular formula Bi2Te3, is a high-purity chemical supplied by Tech Serve Solutions for metal & ceramic science applications, to USP, BP and EP standards.
What grades of Bismuth(III) telluride does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bismuth(III) telluride in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Bismuth(III) telluride?
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Bismuth(III) telluride has CAS number 1304-82-1 and molecular formula Bi2Te3. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Bismuth(III) telluride?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Bismuth(III) telluride ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Bismuth(III) telluride be stored?
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Store Bismuth(III) telluride in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Bismuth(III) telluride used for?
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Bismuth(III) telluride is used in metal & ceramic science applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Bismuth(III) telluride?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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