Sodium Azide
- CAS Number
- 26628-22-8
- HSN Code
- 28500030
- Molecular Formula
- NaN3
- Catalogue Number
- AL01350
- Purity
- 99%
- Molecular Weight
- 65.01 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium azide (extra pure) is a highly toxic compound widely used as a bacteriostatic preservative and reducing agent, historically also used in airbags. It is a white crystalline solid that is known for its ability to release nitrogen gas upon decomposition, making it useful in various applications. Due to its high toxicity, sodium azide is classified as a hazardous material and requires careful handling and storage. Its molecular weight is 65.01 g/mol, and it is recognized for its purity of 99%, making it suitable for sensitive laboratory applications.
Also known as Azide of sodium, Sodium azide, Sodium azid.
- Catalogue No.
- AL01350
- CAS Number
- 26628-22-8
- Molecular Formula
- NaN3
- Molecular Weight
- 65.01 g/mol
- HSN Code
- 28500030
- Grade
- Extra Pure
- Product Form
- Substance
Sodium azide appears as a white crystalline powder with a density of approximately 1.85 g/cm³. It has a melting point of 300 °C (decomposes) and is soluble in water at a concentration of about 50 g/L at 20 °C. The compound has a pH value of approximately 7 in solution and is known to be hygroscopic. Its boiling point is not applicable as it decomposes before boiling, releasing nitrogen gas. Sodium azide has a flash point of 200 °C and is stable under normal conditions but can react explosively with heavy metals and other incompatible materials.
- Appearance
- White crystalline powder
- Shelf Life
- Stable under recommended storage conditions
- Packaging
- Available in various sizes, typically in glass or plastic containers
- Storage
- Store in a cool, dry place away from incompatible materials and sources of ignition.
1.1 — Product identifier
- Chemical Name
- Sodium Azide
- Catalogue No.
- AL01350
- Product form
- Substance
- CAS Number
- 26628-22-8
- EC Number
- 247-852-1
- Grade
- Extra Pure
- EC Index Number
- 011-004-00-7
- Chemical Formula
- NaN3
- HSN Code
- 28500030
- Synonyms
- Azide of sodium, Sodium azide, Sodium azid
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Bacteriostatic preservative, reducing agent, and in airbags
- 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
- Highly toxic, potential for explosive reactions with heavy metals
3.1 — Substance
- Name
- Sodium Azide
- CAS No.
- 26628-22-8
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention immediately.
- First-aid measures after skin contact
- Remove contaminated clothing and wash skin thoroughly with soap and water. Seek medical attention if irritation persists.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and 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 headache, dizziness, nausea, vomiting, and respiratory distress.
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
- May produce toxic fumes in a fire. Use water spray to cool containers exposed to 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. Contain and collect spillage.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Collect spillage in suitable containers for disposal.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with strict personal protective equipment (PPE). Avoid contact with skin, eyes, and clothing. Do not eat, drink, or smoke in areas where this material is handled.
- 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, well-ventilated area away from incompatible materials.
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 a NIOSH-approved respirator if exposure limits are exceeded.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 7 (in solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 300 °C (decomposes)
- Freezing point
- Not applicable
- Boiling point
- Not applicable (decomposes)
- Flash point
- 200 °C
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Decomposes at 300 °C
- Flammability (solid, gas)
- Not flammable under normal conditions
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.85 g/cm³
- Solubility
- 50 g/L in water at 20 °C
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Can react explosively with heavy metals
- Oxidising properties
- Not an oxidizer
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions but can react violently with heavy metals and strong acids.
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 acids, heavy metals, and oxidizing agents.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Highly toxic; LD50 (oral, rat) = 27 mg/kg.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- May cause allergic skin reactions.
- 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 1687
- UN-No. (IMDG)
- UN 1687
- UN-No. (IATA)
- UN 1687
- UN-No. (ADN)
- UN 1687
- UN-No. (RID)
- UN 1687
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium azide
- Proper Shipping Name (IMDG)
- Sodium azide
- Proper Shipping Name (IATA)
- Sodium azide
- Proper Shipping Name (ADN)
- Sodium azide
- Proper Shipping Name (RID)
- Sodium azide
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
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
Sodium azide is primarily used as a bacteriostatic preservative in laboratory reagents and buffers, where it prevents microbial growth without interfering with biochemical assays. It is also utilized in the synthesis of various organic compounds and as a reducing agent in chemical reactions. Historically, sodium azide has been used in automotive airbags as a propellant due to its rapid decomposition to nitrogen gas. Additionally, it finds applications in the pharmaceutical industry and in the preparation of azide compounds for further chemical synthesis.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01350
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 65.01 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99% | 99.5% |
| Moisture Content | <1% | 0.5% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with Extra Pure grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| Extra Pure | 99% | Decomposes at 300 °C | <1% | <0.1% | None detected | 50 g/L in water at 20 °C |
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