Selenium
- CAS Number
- 7782-49-2
- HSN Code
- 28049000
- Molecular Formula
- Se
- Catalogue Number
- AL3966
- Purity
- 99.5%
- 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 atom is a nonmetal atom and a chalcogen. It has a role as a micronutrient.
Also known as Selenium black, Selenium powder.
- Catalogue No.
- AL3966
- CAS Number
- 7782-49-2
- Molecular Formula
- Se
- Molecular Weight
- 78.96 g/mol
- HSN Code
- 28049000
- Grade
- AR grade
- Product Form
- Substance
Melting point: 200 °C; Boiling point: 685 °C at 760 mmHg; Density: 4.39 gcu cm (alpha form); 4.809 gcu cm (gray selenium); 4.28 g/cu cm (vitreous selenium); Solubility: Soluble in aq potassium cyanide soln, potassium sulfite soln, dilute aqueous caustic alkali soln.
- Appearance
- Selenium is a reddish colored powder that may become black upon exposure to air
- Shelf Life
- -
- Packaging
- Available in: 25 gm glass bottle, 100 gm glass bottle
- Storage
- Separated from strong oxidants, strong acids and food and feedstuffs. Dry. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
1.1 — Product identifier
- Chemical Name
- Selenium
- Catalogue No.
- AL3966
- Product form
- Substance
- CAS Number
- 7782-49-2
- EC Number
- 231-957-4
- Grade
- AR grade
- EC Index Number
- Not specified
- Chemical Formula
- Se
- HSN Code
- 28049000
- Synonyms
- Selenium black, Selenium powder
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, catalyst
- 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. 3; STOT RE 2; Aquatic Chronic 4
- Classification source
- ECHA C&L Inventory via PubChem CID 6326970 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Acute Toxic, Health Hazard
- Signal word
- Danger
- Hazard statements
- H301: Toxic if swallowed; H331: Toxic if inhaled; H373: May causes damage to organs through prolonged or repeated exposure; H413: May cause long lasting harmful effects to aquatic life
2.3 — Other hazards
- Other hazards
- Toxic; may cause respiratory irritation and skin sensitization.
3.1 — Substance
- Name
- Selenium
- CAS No.
- 7782-49-2
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, immediately wash the contaminated skin with soap and water. If this chemical penetrates the clothing, immediately remove the clothing, wash the skin with soap and water, and 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
- Symptoms of exposure may include respiratory distress, skin irritation, and gastrointestinal discomfort.
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. Wear appropriate protective equipment.
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. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
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
- Separated from strong oxidants, strong acids and food and feedstuffs. Dry. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
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
- Black
- Odour
- Slightly pungent
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 200 °C
- Freezing point
- Not applicable
- Boiling point
- 685 °C at 760 mmHg
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- 1 Pa at 227 °C; 10 Pa at 279 °C; 100 Pa at 344 °C; 1 kPa at 431 °C; 10 kPa at 540 °C; 100 kPa at 685 °C
- Relative vapour density at 20°C
- Not applicable
- Density
- 4.39 gcu cm (alpha form); 4.809 gcu cm (gray selenium); 4.28 g/cu cm (vitreous selenium)
- Solubility
- Soluble in aq potassium cyanide soln, potassium sulfite soln, dilute aqueous caustic alkali soln
- Log Pow
- Not specified
- 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, but may react with strong oxidizing agents.
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. Reacts with oxidants and strong acids. Reacts , if in amorphous form, with water at 50 °C. This produces flammable/explosive gas (hydrogen) and selenious acids.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizers, acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomp emits toxic fumes of selenium.
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if inhaled or ingested; may cause skin and eye irritation.
- 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)
- H373: May causes damage to organs through prolonged or repeated exposure
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 Powder Black 99.5% AR is primarily utilized as an analytical-grade catalyst in Kjeldahl digestion processes, which are essential for determining nitrogen content in organic compounds. Additionally, it serves as a reference material in selenium chemistry research, aiding in the study of selenium's role in biological systems and its applications in electronics and photonics. The powder is also used in the production of glass and ceramics, where selenium compounds contribute to color and UV protection. Furthermore, it finds applications in the formulation of dietary supplements and in the development of photovoltaic cells.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1305A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 78.96 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99.5% min | 99.7% |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR grade | 99.5% | m.p. 200 °C; b.p. 685 °C at 760 mmHg | <0.5% | <0.1% | None detected | Soluble in aq potassium cyanide soln, potassium sulfite soln, dilute aqueous caustic alkali soln |
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