Bismuth(III) telluride
Bismuth(III) telluride (CAS: 1304-82-1, Formula: Bi₂Te₃, MW: 800.76) is a crucial semiconductor material renowned for its exceptional thermoelectric properties. This p-type semiconductor exhibits a high figure of merit (ZT) at room temperature, making it a primary component in advanced thermoelectric devices for energy conversion and cooling applications. Supplied by TSS as a high-purity material for advanced research and development.
- IUPAC
- Bismuth sesquitelluride,Bismuth telluride,Dibismuth tritelluride
Thermoelectric Generators
Bismuth(III) telluride is a key material for generating electricity from heat. Its high thermoelectric efficiency allows for the conversion of waste heat into usable electrical energy in various industrial and automotive applications.
Solid-State Cooling Devices
The compound is utilized in solid-state thermoelectric coolers (Peltier devices). These devices can provide precise temperature control for sensitive electronics, scientific instruments, and portable refrigeration units without moving parts.
Semiconductor Research
As a well-established thermoelectric material, Bi₂Te₃ serves as a benchmark and essential component in ongoing research for developing next-generation energy harvesting and temperature management solutions.
| 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
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets 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 used for?
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Bismuth(III) telluride is primarily used in thermoelectric devices for energy conversion (generating electricity from heat) and solid-state cooling applications due to its excellent thermoelectric properties.
What is the CAS number and formula for Bismuth(III) telluride?
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The CAS number for Bismuth(III) telluride is 1304-82-1, and its chemical formula is Bi₂Te₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bismuth(III) telluride with an assay of 99.995% trace metals basis. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How is Bismuth(III) telluride classified for safety and handling?
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Bismuth(III) telluride is classified as harmful if swallowed, in contact with skin, or if inhaled. It also causes skin irritation, serious eye irritation, and may cause respiratory irritation. Handle with appropriate personal protective equipment in a well-ventilated area.
How is Bismuth(III) telluride packed, shipped, and exported?
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Bismuth(III) telluride is carefully packed to ensure safe transit and is available for global export by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample for Bismuth(III) telluride?
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To request a quote or sample for Bismuth(III) telluride, please contact our sales department through the website or by phone.
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