Tellurium
Tellurium (CAS: 13494-80-9, Formula: Te, Molar Mass: 127.60) is a metalloid supplied by Tech Serve Solutions as high-purity shots. This element is crucial in advanced materials science, particularly for thermoelectric applications due to its semiconductor properties. It plays a vital role in developing next-generation energy solutions and specialised alloys. TSS ensures reliable supply for research and industrial needs.

Thermoelectric Materials
Tellurium is a key component in thermoelectric materials, enabling the conversion of heat energy into electrical energy and vice versa. Its properties are vital for developing efficient thermoelectric generators and coolers used in niche energy harvesting and cooling applications.
Semiconductor Industry
As a semiconductor, tellurium and its compounds are used in the production of various electronic devices. It is essential for creating photoconductors, rectifiers, and transistors, contributing to advancements in electronics manufacturing.
Alloys and Metallurgy
Tellurium is added to certain metals, such as copper and steel, to improve their machinability and strength. These tellurium-containing alloys find applications in demanding industrial environments where enhanced material properties are required.
Research and Development
The unique properties of tellurium make it a subject of ongoing research in materials science and chemistry. High-purity tellurium from TSS supports R&D efforts exploring novel applications in energy storage, catalysts, and advanced coatings.
| Molecular weight | 127.60 |
|---|---|
| Empirical formula | Te |
| Assay | 99.99% trace metals basis |
| Form | shot |
| Boiling point | 990 °C(lit.) |
| Density | 6.24 g/mL at 25 °C(lit.) |
| Particle size | −5-+50 mesh |
| Melting point | 450 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Resistivity | 5.8-33 μΩ-cm, 20°C |
|---|
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 Tellurium (CAS: 13494-80-9) used for?
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Tellurium (CAS: 13494-80-9) is used in thermoelectric materials, the semiconductor industry, and to improve the properties of alloys like copper and steel. It is also widely used in research and development for advanced materials.
What is the CAS number and formula for Tellurium?
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The CAS number for Tellurium is 13494-80-9, and its chemical formula is Te.
What grade and purity does Tech Serve Solutions supply for Tellurium?
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Tech Serve Solutions supplies Tellurium with an assay of 99.99% on a trace metals basis. We do not represent this product as USP, BP, or EP grade.
How should Tellurium be handled safely?
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Tellurium is classified as toxic if swallowed (H301) and requires careful handling. Appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges, must be used. Handle in a well-ventilated area and avoid ingestion. Refer to the Safety Data Sheet for detailed guidance.
Is Tellurium a controlled substance?
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The provided data does not indicate that Tellurium is a controlled substance.
How is Tellurium packed and exported by TSS?
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Tellurium is supplied in shot form and is packed securely for safe transit. Tech Serve Solutions is a global supplier and exporter experienced in handling and shipping chemical products internationally.
How can I request a quote or sample for Tellurium?
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To request a quote or sample for Tellurium, please contact our sales department through the website or provide your details via the product enquiry form.
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