Selenium
- CAS Number
- 7782-49-2
- HSN Code
- 28049000
- Molecular Formula
- Se
- Catalogue Number
- AL01305
- Purity
- ≥ 99%
- Molecular Weight
- 78.96 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Selenium metal powder is a finely divided form of elemental selenium, characterized by its high purity of 99%. This powder is notable for its use as a reference material in various analytical chemistry applications, particularly in selenium chemistry. Selenium is a non-metal that exhibits both metallic and non-metallic properties, making it versatile in its applications. Its unique properties allow it to function effectively as a reducing agent, which is essential in many chemical reactions and processes.
Also known as Elemental Selenium, Selenium Powder.
- Catalogue No.
- AL01305
- CAS Number
- 7782-49-2
- Molecular Formula
- Se
- Molecular Weight
- 78.96 g/mol
- HSN Code
- 28049000
- Grade
- 99%
- Product Form
- Substance
Selenium metal powder appears as a gray to red-brown metallic powder, with a characteristic metallic luster. It has a melting point of approximately 221 °C and a boiling point of about 685 °C. The density of selenium powder is around 4.81 g/cm³. It is insoluble in water but soluble in organic solvents such as carbon disulfide and benzene. The powder has a low vapor pressure, indicating that it does not readily evaporate at room temperature, and it is stable under normal conditions.
- Appearance
- Gray to red-brown metallic powder
- Shelf Life
- -
- Packaging
- Typically packaged in airtight containers to prevent oxidation
- Storage
- Store in a cool, dry place away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Selenium
- Catalogue No.
- AL01305
- Product form
- Substance
- CAS Number
- 7782-49-2
- EC Number
- 231-957-4
- Grade
- 99%
- EC Index Number
- Not specified
- Chemical Formula
- Se
- HSN Code
- 28049000
- Synonyms
- Elemental Selenium, Selenium Powder
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a reference material and reducing agent in analytical chemistry
- 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
2.3 — Other hazards
- Other hazards
- May cause respiratory irritation; handle with care to avoid inhalation of dust.
3.1 — Substance
- Name
- Selenium
- CAS No.
- 7782-49-2
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include 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
- Selenium is not flammable, but may emit 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
- Evacuate area and ventilate. Use appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Collect and dispose of in accordance with local regulations. Avoid dust generation.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves and avoid inhalation of dust. Use in a well-ventilated area.
- 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
- Store in a cool, dry place, away from incompatible materials such as strong oxidizers.
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 to red-brown
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 221 °C
- Freezing point
- Not applicable
- Boiling point
- 685 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Low
- Relative vapour density at 20°C
- Not applicable
- Density
- 4.81 g/cm³
- Solubility
- Insoluble in water; soluble in organic solvents
- 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
- No dangerous reactions known under normal conditions of use.
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, strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if inhaled or ingested; may cause respiratory irritation.
- Skin corrosion/irritation
- May cause skin irritation upon contact.
- Serious eye damage/irritation
- May cause eye irritation.
- Respiratory or skin sensitisation
- May cause allergic skin reactions in sensitive individuals.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- Specific target organ toxicity (repeated exposure)
- Not classified
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)
- UN 3288
- UN-No. (IMDG)
- UN 3288
- UN-No. (IATA)
- UN 3288
- UN-No. (ADN)
- UN 3288
- UN-No. (RID)
- UN 3288
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Selenium, solid
- Proper Shipping Name (IMDG)
- Selenium, solid
- Proper Shipping Name (IATA)
- Selenium, solid
- Proper Shipping Name (ADN)
- Selenium, solid
- Proper Shipping Name (RID)
- Selenium, solid
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
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
Selenium metal powder is widely used in analytical chemistry as a reference material for various selenium-based studies. It serves as a catalyst in Kjeldahl nitrogen-digestion research, facilitating the conversion of nitrogen compounds into measurable forms. Additionally, selenium is utilized in the production of glass, pigments, and photocells, as well as in the formulation of dietary supplements due to its essential role in human health. Its unique properties also make it valuable in the electronics industry for semiconductor applications.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01305
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 78.96 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay Purity | ≥ 99% | 99.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Insoluble in water | Insoluble in water |
The above product is expected to comply with 99% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 99% | ≥ 99% | Melting point: 221 °C; Boiling point: 685 °C | ≤ 0.5% | ≤ 0.1% | None detected | Insoluble in water, soluble in organic solvents |
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