Tellurium
- CAS Number
- 13494-80-9
- HSN Code
- 28045020
- Molecular Formula
- Te
- Catalogue Number
- AL4448
- Purity
- 99.9%
- Molecular Weight
- 127.60 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Tellurium atom is a metalloid atom and a chalcogen.
Also known as Tellurium powder.
- Catalogue No.
- AL4448
- CAS Number
- 13494-80-9
- Molecular Formula
- Te
- Molecular Weight
- 127.60 g/mol
- HSN Code
- 28045020
- Grade
- 99.9% Extra Pure
- Product Form
- Substance
Melting point: 449.8 °C; Boiling point: 989.9 °C; Density: 6.11-6.27; Solubility: Insol in benzene, carbon disulfide.
- Appearance
- Grayish-white, lustrous, brittle, crystalline solid, hexagonal, rhombohedral structure
- Shelf Life
- -
- Packaging
- Available in: 100 gm glass bottle, 500 gm glass bottle
- Storage
- Separated from halogens and interhalogens.
1.1 — Product identifier
- Chemical Name
- Tellurium
- Catalogue No.
- AL4448
- Product form
- Substance
- CAS Number
- 13494-80-9
- EC Number
- 236-813-4
- Grade
- 99.9% Extra Pure
- EC Index Number
- Not specified
- Chemical Formula
- Te
- HSN Code
- 28045020
- Synonyms
- Tellurium powder
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used in thermoelectric materials and specialty alloys.
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Acute Tox. 4
- Classification source
- ECHA C&L Inventory via PubChem CID 6327182 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant
- Signal word
- Warning
- Hazard statements
- H332: Harmful if inhaled
2.3 — Other hazards
- Other hazards
- May cause skin and eye irritation; handle with gloves and protective eyewear.
3.1 — Substance
- Name
- Tellurium
- CAS No.
- 13494-80-9
4.1 — Description of first aid measures
- First-aid measures after inhalation
- If this chemical has been inhaled, remove the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the person warm and at rest.
- First-aid measures after skin contact
- If this chemical contacts the skin, promptly wash the contaminated skin with soap and water. If this chemical penetrates the clothing, promptly remove the clothing and wash the skin with soap and water. Get medical attention promptly.
- First-aid measures after eye contact
- If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
- First-aid measures after ingestion
- If this chemical has been swallowed, get medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- May cause respiratory irritation, skin irritation, and eye irritation.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Non-flammable; however, may produce toxic fumes in a fire.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Avoid dust formation. Use appropriate personal protective equipment. Ensure adequate ventilation.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with care. Use gloves and protective eyewear. Avoid dust generation.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Separated from halogens and interhalogens.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Gray-black
- Odour
- Odorless.
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 449.8 °C
- Freezing point
- Not applicable
- Boiling point
- 989.9 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- 340 °C
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Non-flammable
- Vapour pressure
- Vapor pressure between 511 and 835 °C is given by equation logP(kPa)= 6.7249-(5960.2/K)
- Relative vapour density at 20°C
- Not applicable
- Density
- 6.11-6.27
- Solubility
- Insol in benzene, carbon disulfide
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts with strong oxidizers.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Upon heating, toxic fumes are formed. Decomposes on heating. This produces toxic fumes.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents, acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits toxic fumes of tellurium.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral 83 mg/kg; LD50 Rabbit oral 67 mg/kg; LD50 Guinea pig oral 45 mg/kg
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- Not assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Tellurium powder
- Proper Shipping Name (IMDG)
- Tellurium powder
- Proper Shipping Name (IATA)
- Tellurium powder
- Proper Shipping Name (ADN)
- Tellurium powder
- Proper Shipping Name (RID)
- Tellurium powder
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not classified as hazardous for transport
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Tellurium metal powder is widely used in the production of thermoelectric materials, which are essential for converting temperature differences into electrical energy. It is also employed in the manufacturing of specialty alloys, enhancing the properties of metals such as copper and steel. Additionally, tellurium is utilized in the semiconductor industry for the fabrication of photovoltaic cells and in the production of infrared detectors. Its unique properties make it valuable in research settings focused on advanced materials and electronic applications.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1496A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 127.60 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Blackish gray powder | Blackish gray powder |
| Assay | Min. 99.9% | 99.91% |
The above product complies with EP grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 99.9% Extra Pure | 99.9% | m.p. 449.8 °C; b.p. 989.9 °C | <0.1% | <0.1% | None detected | Insol in benzene, carbon disulfide |
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“From ordering to shipping, every course of action was smooth. Timely delivery.”
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“Speedy delivery, professional staff.”
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